Using without the special PCB just with the ESP32 itself #59

vzoltan · 2025-07-21T18:18:29Z

vzoltan
Jul 21, 2025

Hi

i just built it and uploaded it to an ESP32 WROOM board, and it boots up, also connects to my Spark 2 immediatelly, and also works with my Spark GO. I can see the messages in the serial monitor when i change presets or volume etc on the spark amp, so everything look just fine.

Question is, how to connect the switches and leds and the screen to the esp32's pins without this special pcb.
Which pins to use on the esp32 for switches and leds?

Thank you

stangreg · 2025-07-22T08:46:26Z

stangreg
Jul 22, 2025
Maintainer

Hi,Nice to hear that it works for you in principal! You can see the configured pins for the buttons and the LEDs in the Config_Definitions.h file. Note that there are two different modes for the LEDs. If a certain #define is set, you can have separate LEDs for the FX and the preset number, otherwise they will be shared (default).You can also change the GPIOs according to your board, just be careful that the pins support the mode and there is no conflict with other uses of the pins.Von meinem iPhone gesendetAm 21.07.2025 um 20:18 schrieb vzoltan ***@***.***>: Hi i just built it and uploaded it to an ESP32 WROOM board, and it boots up, also connects to my Spark 2 immediatelly, and also works with my Spark GO. I can see the messages in the serial monitor when i change presets or volume etc on the spark amp, so everything look just fine. Question is, how to connect the switches and leds and the screen to the esp32's pins without this special pcb. Which pins to use on the esp32 for switches and leds? Thank you —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

6 replies

vzoltan Jul 22, 2025
Author

// Button GPIOs
enum ButtonGpio {
    BUTTON_PRESET1_GPIO = 25,
    BUTTON_DRIVE_GPIO = 25,

    BUTTON_PRESET2_GPIO = 26,
    BUTTON_MOD_GPIO = 26,

    BUTTON_PRESET3_GPIO = 32,
    BUTTON_DELAY_GPIO = 32,

    BUTTON_PRESET4_GPIO = 33,
    BUTTON_REVERB_GPIO = 33,

    BUTTON_BANK_DOWN_GPIO = 19,
    BUTTON_NOISEGATE_GPIO = 19,

    BUTTON_BANK_UP_GPIO = 18,
    BUTTON_COMP_GPIO = 18
};

this for Buttons, OK

and

#else
enum LedGpio {
    LED_DRIVE_GPIO = 27,
    LED_MOD_GPIO = 13,
    LED_DELAY_GPIO = 16,
    LED_REVERB_GPIO = 14,
    LED_NOISEGATE_GPIO = 23,
    LED_COMP_GPIO = 17,

    LED_PRESET1_GPIO = LED_DRIVE_GPIO,
    LED_PRESET2_GPIO = LED_MOD_GPIO,
    LED_PRESET3_GPIO = LED_DELAY_GPIO,
    LED_PRESET4_GPIO = LED_REVERB_GPIO,
    LED_BANK_DOWN_GPIO = LED_NOISEGATE_GPIO,
    LED_BANK_UP_GPIO = LED_COMP_GPIO,

    LED_GPIO_INVALID = -1
};

this for the leds, OK

But, which pins are for the screen?

also, do i need to alter these?

enum LedOptionalGpio {
    OPTIONAL_GPIO_1 = 0,
    OPTIONAL_GPIO_2 = 4,
    OPTIONAL_GPIO_3 = 12,
    OPTIONAL_GPIO_4 = 15
};
#endif

thank you

barsk Jul 22, 2025

Hi. As I am the author of the dedicated LED mod I wanted to give a tip here. The mod uses a few free pins as defined in the definitions header file. It is pretty well described in the hardware and src Readme files in the bottom Optional sections. Here is a link to the hardware section, but check the src one as well. Hope this helps!
https://github.com/stangreg/Ignitron/tree/main/hardware#optional-dedicated-preset-leds

vzoltan Jul 22, 2025
Author

thanks for both of you
however i cant get it work.

once i connect the switches and leds to the board it just wont work at all.
remove the leds and switches and i can see the data in the serial monitor between the esp32 and spark.

obviously user error, but i have no idea.

vzoltan Jul 23, 2025
Author

what happens is the spark 2's leds all, starts to blink randomly and continously then the loopers 3 leds stays on or blinks all 3.
preset knob's leds starts to go on and off randomly and continously

vzoltan Jul 23, 2025
Author

Keyboard not connected
this is what i see on the serial monitor, but i guess it can be bc of the gnd was disconnected.

but im still not sure about the defaul pinout, and i cant use that, what should be configured for an esp32dev board?

barsk · 2025-07-23T10:17:02Z

barsk
Jul 23, 2025

My mod with the extra dedicated LEDs occupies GPIO 0, 4, 12, 15. If you don't want those then leave those pins empty. If you decide to use them (with leds and resistors) you need to uncomment the line:
// #define DEDICATED_PRESET_LED

Otherwise the GPIO used are as in your snippet above. All those default pins are also covered in the Schematics, including the pins for the display wich use I2C pins (SDA/SCL) G21 and G22. Hope I got that right.
https://github.com/stangreg/Ignitron/blob/main/hardware/Ignitron-Schematics.pdf

I would recommend hooking all up on a breadboard to get a feel of it all before hacking a perfboard. That way you can add components in groups in order to debug where it all goes awry. I would guess a short or wrong wiring somewhere. I assume also that you have added pulldown resistors and led resistors right? The schematic will help you figure out what is needed in any case.

1 reply

vzoltan Jul 23, 2025
Author

All the leds have their own resistors soledered to them and ground is shared among the leds and switches.

This is how i modified the config :

// Button GPIOs
enum ButtonGpio {
    BUTTON_PRESET1_GPIO = 12,
    BUTTON_DRIVE_GPIO = 12,

    BUTTON_PRESET2_GPIO = 27,
    BUTTON_MOD_GPIO = 27,

    BUTTON_PRESET3_GPIO = 15,
    BUTTON_DELAY_GPIO = 15,

    BUTTON_PRESET4_GPIO = 13,
    BUTTON_REVERB_GPIO = 13,

    BUTTON_BANK_DOWN_GPIO = 32,
    BUTTON_NOISEGATE_GPIO = 32,

    BUTTON_BANK_UP_GPIO = 33,
    BUTTON_COMP_GPIO = 33
};

// Button long press time
const int LONG_BUTTON_PRESS_TIME = 1000;

// LED GPIOs

// If the optional DEDICATED_PRESET_LEDS is defined below it will
// slightly alter the behaviour of Ignitron to make the FX and
// PRESET LEDs work independently. Also the bottom  line in the
// OLED display will no longer show FX symbols but instead
// show which *mode* Ignitron is in:
// (PRESET/FX MANUAL/LOOP-CONFIG/LOOP-CNTRL).
// The FX LEDS will show the actual FX pedals in use for each preset.
// The dedicated Preset LED GPIO pins LED_PRESET<n>_GPIO is defined
// separately below under the #ifdef DEDICATED_PRESET_LEDS clause.

// #define DEDICATED_PRESET_LEDS

#ifdef DEDICATED_PRESET_LEDS
enum LedGpio {
    LED_DRIVE_GPIO = 27,
    LED_MOD_GPIO = 13,
    LED_DELAY_GPIO = 16,
    LED_REVERB_GPIO = 14,
    LED_NOISEGATE_GPIO = 23,
    LED_COMP_GPIO = 17,

    LED_PRESET1_GPIO = 0,
    LED_PRESET2_GPIO = 4,
    LED_PRESET3_GPIO = 12,
    LED_PRESET4_GPIO = 15,
    LED_BANK_DOWN_GPIO = 23,
    LED_BANK_UP_GPIO = 17,

    LED_GPIO_INVALID = -1
};

#else
enum LedGpio {
    LED_DRIVE_GPIO = 19,
    LED_MOD_GPIO = 18,
    LED_DELAY_GPIO = 22,
    LED_REVERB_GPIO = 21,
    LED_NOISEGATE_GPIO = 5,
    LED_COMP_GPIO = 23,

    LED_PRESET1_GPIO = LED_DRIVE_GPIO,
    LED_PRESET2_GPIO = LED_MOD_GPIO,
    LED_PRESET3_GPIO = LED_DELAY_GPIO,
    LED_PRESET4_GPIO = LED_REVERB_GPIO,
    LED_BANK_DOWN_GPIO = LED_NOISEGATE_GPIO,
    LED_BANK_UP_GPIO = LED_COMP_GPIO,

    LED_GPIO_INVALID = -1
};

and this is the monitor output:

---- Opened the serial port /dev/ttyACM0 ----
Initialization done.
Connected to: f7:eb:ed:13:44:b9
Subscribing to service notifications of FFC2
Notifications turned on
Done with this device.
BLE connection to Spark established.
Reading current battery level
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Message processed:
{"Serial Number": "SXXXXGXXXXXXXXX"}
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Battery level = 4030
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Reading current battery level
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Changing to HW preset 2...Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Reading current battery level
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Changing to HW preset 2...Switching to FX mode
Re-initializing button config
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Reading current battery level
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Reading current battery level
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark


abort() was called at PC 0x401c25ab on core 1


Backtrace: 0x40083cb1:0x3ffd2940 0x40095099:0x3ffd2960 0x4009ad79:0x3ffd2980 0x401c25ab:0x3ffd2a00 0x401c25f2:0x3ffd2a20 0x401c2989:0x3ffd2a40 0x400df04d:0x3ffd2a60 0x400df441:0x3ffd2b80 0x400df483:0x3ffd2ba0 0x400d7da5:0x3ffd2bd0 0x400eca8d:0x3ffd2c00 0x400ecad9:0x3ffd2c20




ELF file SHA256: ad04c4a8efca71d8

Rebooting...
ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13232
load:0x40080400,len:3028
entry 0x400805e4
Initializing
Operation mode (boot): 1
Reading opmode file.
[    79][E][vfs_api.cpp:105] open(): /littlefs/config/SparkMode.config does not exist, no permits for creation
Spark mode config file does not exist.
Initializing PresetBuilder
Reading custom presets from filesystem.
Initializing APP modeStopping advertising keyboard
Starting scan
Operation mode: 1
======= Entering APP mode =======
Found Spark, connecting.
Scan ended.
Initialization done.
Connected to: f7:eb:ed:13:44:b9
Subscribing to service notifications of FFC2
Notifications turned on
Done with this device.
BLE connection to Spark established.
Reading current battery level
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Message processed:
{"Serial Number": "SXXXXGXXXXXXXXX"}
Changing to HW preset 2...Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Battery level = 4029
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark
Getting current preset from Spark

and here i give up... during this log was generated i did not touch the spark GO nor the switches on the board.

two of the 4 leds are SOLID on .
of these
LED_DRIVE_GPIO = 19,
LED_MOD_GPIO = 18,
LED_DELAY_GPIO = 22,
LED_REVERB_GPIO = 21,

once i removed all the leds and switches from the esp32's pins the output continues like this:

Getting current preset from Spark
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 4...Changing to HW preset 2...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 4...Changing to HW preset 2...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 1.8750, 0.0000, 0.0000, -43.3156, 0.0000]}],
"Checksum": "AD"
}
Changing to HW preset 4...Reading missing HW preset 1
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 2...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 2...Changing to HW preset 4...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Reading missing HW preset 2
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 2...Changing to HW preset 4...deserializeJson() failed with code IncompleteInput
Checksum not found, trying legacy format.
[109986][E][vfs_api.cpp:105] open(): /littlefs/HW2_S0511G254004473.json does not exist, no permits for creation
Error while opening file /HW2_S0511G254004473.json, returning empty preset.
Message processed:
{"Amp Name": "Spark GO"}
Getting current preset from Spark
OK
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 2...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 4...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Changing to HW preset 4...Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Reading missing HW preset 1
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Reading missing HW preset 2
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Battery level = 4028
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Message processed:
{"PresetNumber": 0, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000, 1.0000]}],
"Checksum": "56"
}
Getting current preset from Spark
OK
Getting current preset from Spark
OK
Getting current preset from Spark
OK
Getting current preset from Spark
OK
Getting current preset from Spark
OK
Saving preset:
{"PresetNumber": 0, "UUID": "4F221D71-372A-42C9-828D-AEF5AB3EB3B0", 
"Name": "RHYTHM", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0732, 0.8991, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3152, 0.6476]}, 
{"Name": "Booster", "IsOn": false, "Parameters":[0.6563]}, 
{"Name": "Twin", "IsOn": true, "Parameters":[0.7043, 0.4510, 0.5028, 0.5492, 0.5950]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.6238, 0.5000, 0.4655, 0.5596, 0.5909, 0.5815, 0.5000]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2226, 0.2018, 0.2643, 0.3620, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.5013, 0.1957, 0.0745, 0.6937, 0.4882, 0.4664, 0.3000, 1.0000]}],
"Checksum": "9E"
}
Store preset with filename /HW1_S0511G254004473.json
Preset not found.Preset not found, not changing.
Message processed:
{"PresetNumber": 0, "UUID": "4F221D71-372A-42C9-828D-AEF5AB3EB3B0", 
"Name": "RHYTHM", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0732, 0.8991, 1.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3152, 0.6476]}, 
{"Name": "Booster", "IsOn": false, "Parameters":[0.6563]}, 
{"Name": "Twin", "IsOn": true, "Parameters":[0.7043, 0.4510, 0.5028, 0.5492, 0.5950]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.6238, 0.5000, 0.4655, 0.5596, 0.5909, 0.5815, 0.5000]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2226, 0.2018, 0.2643, 0.3620, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.5013, 0.1957, 0.0745, 0.6937, 0.4882, 0.4664, 0.3000, 1.0000]}],
"Checksum": "9E"
}
OK
Reading missing HW preset 2
OK
OK
Message processed:
{"PresetNumber": 1, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 0.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.0000, -0.0000, -3137536.0000, 17034514381815560259239936.0000, 71539657562782192107520.0000]}, 
{"Name": "", "IsOn": true, "Parameters":[0.0000, -0.0000, 0.0000, -2625809245330637438101546336256.0000, 0.0000, 0.0000, -424199040.0000, 0.5000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, -0.0000, 12.2659, 0.0000, 738.5671, -0.0000, 4416711116809683599360.0000, -3193856.0000, 1076278331354581565440.0000, 18390489574735269731500032.0000, -294.0044, -0.0000, 14637937459200.0000, 0.0000, 4544744754591310918545001414656.0000, -0.0000, 0.0000, -1656457917662041297062008455168.0000, 71651265768747687739392.0000, 0.7670, 290862871238506231590141483286528.0000, 67705040638459819065344.0000, -3133454.7500, -3131014.5000, -3129383.2500, -3126131.2500, -3127786.7500, 295938870284277908900764184477696.0000, 0.0000, 0.0000, -76135957052115613049885012273062215680.0000, -910457322382807376453580943609823232.0000, 0.0000, 0.0000, 0.0000, 0.0000, 287448526627339763712.0000, -74.5011, 104451.1328, -44390367443921403904.0000, 0.0000, 0.0000, 0.0000, 0.0000]}, 
{"Name": "", "IsOn": true, "Parameters":[-3133226.2500, -3114598.2500, -3129344.0000, -3131333.2500, -3097733.5000, -3124428.7500, -3109683.0000, -3137536.0000, 95509318467584.0000, 0.0000, 0.0000, 0.0000, 0.0000, 185.1766, 0.0000, 0.0000, 215123034112.0000, 0.0000, 73713571830228480698798309376.0000, 0.0000, 0.0000, 18523599407626634374441598976.0000, 72613171885903566592420094148608.0000, 0.0000, 0.0000, 0.0000, 0.0000, 19286934144599839405585547132928.0000, 1176986093907740329303343104.0000, 0.0000, 0.0000, 19363067457015890292491843272704.0000, 1176986093907740329303343104.0000, 0.0000, 12414593829067388779946311680.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 62825.4531, 48889282560.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 52591888030527672811520.0000]}],
"Checksum": "20"
}
OK
OK
HW checksum for preset 2 changed (Cache: 00 / Amp: c2), invalidating cache.
HW checksum for preset 3 changed (Cache: ca / Amp: b4), invalidating cache.
HW checksum for preset 4 changed (Cache: ca / Amp: 77), invalidating cache.
Changing to HW preset 1...Message processed:
{"Checksum Preset 1": "9E", "Checksum Preset 2": "C2", "Checksum Preset 3": "B4", "Checksum Preset 4": "77"}
Saving preset:
{"PresetNumber": 0, "UUID": "0B7B5B60-03AC-46CD-AFF9-F5E23392F6E0", 
"Name": "CUSTOM", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.1667, 0.0000, 1.0000]}, 
{"Name": "BlueCo�", "IsOn": true, "Parameters":[0.0000, 11404.5479, 0.0000, 0.0000, 693.0198, 44.8176, -0.0000, -0.0000, 4416711116809683599360.0000, -3193856.0000, 1076278331354581565440.0000, 18390489574735269731500032.0000, -294.0044, -30175735292060959564531499008.0000, 0.0000, 0.0000, 4544744754591310918545001414656.0000, -0.0000, 0.0020, 21923038.0000, 71650112847243080892416.0000, 0.6563, 18040497193581769194995712.0000, 0.7043, 0.4510, 0.5028, 0.5492, 0.5950, 18464879528977017318932480.0000, -302.0044, -0.0000, 0.0000, 879670572613632.0000, 0.8985, 6688.6958, -1144029822792499200.0000, 0.0000, 68277176566900520870068911169601536.0000, -0.0000, 0.0000, 0.0000, 636231007007341639087685632.0000, 0.0000, 0.0000, 4544972637108308276144433528832.0000, -0.0000, 2122866.5000, 0.0000, -0.0000, -0.0000, -173383108916622362050555564775178240.0000, 0.0000, -0.0000, 0.0000, 884.3699, 71806770560281163595776.0000, 67519213110635257659392.0000, 0.7509, 0.6020, 0.5024, 0.4020, 0.4525, 18464879528977017318932480.0000, -302.0044, 0.0000, 46341179978113576075264.0000, 0.0000, 0.0000, 78.0109, 553065.0625, 78.3326, 68277176566900520870068911169601536.0000, -0.0000, -33965864.0000, 0.0000, -0.0000, -2388159596494585856.0000, 0.0000, 4544972637108308276144433528832.0000, -0.0000, 0.0000, -0.0000, 0.0000, -2625809245330637438101546336256.0000, 0.0000, 0.0000]}, 
{"Name": "����?�
Store preset with filename /HW1_S0511G254004473.json
Reading missing HW preset 3
Preset not found.Preset not found, not changing.
Message processed:
{"PresetNumber": 0, "UUID": "0B7B5B60-03AC-46CD-AFF9-F5E23392F6E0", 
"Name": "CUSTOM", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.1667, 0.0000, 1.0000]}, 
{"Name": "BlueCo�", "IsOn": true, "Parameters":[0.0000, 11404.5479, 0.0000, 0.0000, 693.0198, 44.8176, -0.0000, -0.0000, 4416711116809683599360.0000, -3193856.0000, 1076278331354581565440.0000, 18390489574735269731500032.0000, -294.0044, -30175735292060959564531499008.0000, 0.0000, 0.0000, 4544744754591310918545001414656.0000, -0.0000, 0.0020, 21923038.0000, 71650112847243080892416.0000, 0.6563, 18040497193581769194995712.0000, 0.7043, 0.4510, 0.5028, 0.5492, 0.5950, 18464879528977017318932480.0000, -302.0044, -0.0000, 0.0000, 879670572613632.0000, 0.8985, 6688.6958, -1144029822792499200.0000, 0.0000, 68277176566900520870068911169601536.0000, -0.0000, 0.0000, 0.0000, 636231007007341639087685632.0000, 0.0000, 0.0000, 4544972637108308276144433528832.0000, -0.0000, 2122866.5000, 0.0000, -0.0000, -0.0000, -173383108916622362050555564775178240.0000, 0.0000, -0.0000, 0.0000, 884.3699, 71806770560281163595776.0000, 67519213110635257659392.0000, 0.7509, 0.6020, 0.5024, 0.4020, 0.4525, 18464879528977017318932480.0000, -302.0044, 0.0000, 46341179978113576075264.0000, 0.0000, 0.0000, 78.0109, 553065.0625, 78.3326, 68277176566900520870068911169601536.0000, -0.0000, -33965864.0000, 0.0000, -0.0000, -2388159596494585856.0000, 0.0000, 4544972637108308276144433528832.0000, -0.0000, 0.0000, -0.0000, 0.0000, -2625809245330637438101546336256.0000, 0.0000, 0.0000]}, 
{"Name": "����?�
Saving preset:
{"PresetNumber": 1, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 0.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000]}],
"Checksum": "CA"
}
Store preset with filename /HW2_S0511G254004473.json
[118383][E][vfs_api.cpp:105] open(): /littlefs/HW2_S0511G254004473.json does not exist, no permits for creation
Reading missing HW preset 4
Message processed:
{"PresetNumber": 1, "UUID": "685B14CB-C954-4638-ABDA-BCB06FD52BD8", 
"Name": "LEAD", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.0485, 0.7474, 0.0000]}, 
{"Name": "Compressor", "IsOn": false, "Parameters":[0.3029, 0.5233]}, 
{"Name": "Booster", "IsOn": true, "Parameters":[0.7670]}, 
{"Name": "BluesJrTweed", "IsOn": true, "Parameters":[0.7509, 0.6020, 0.5024, 0.4020, 0.4525]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.5000, 0.4969, 0.4906, 0.5000, 0.5752, 0.6066, 0.5752]}, 
{"Name": "DelayRe201", "IsOn": false, "Parameters":[0.2337, 0.1005, 0.4729, 0.3109, 1.0000]}, 
{"Name": "bias.reverb", "IsOn": true, "Parameters":[0.7370, 0.1500, 0.5000, 0.6214, 0.0357, 0.3500, 0.1000]}],
"Checksum": "CA"
}
Saving preset:
{"PresetNumber": 0, "UUID": "0B7B5B60-03AC-46CD-AFF9-F5E23392F6E0", 
"Name": "CUSTOM", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.1667, 0.0000, 1.0000]}, 
{"Name": "BlueComp", "IsOn": false, "Parameters":[0.4863, 0.5253, 0.4931, 0.6441]}, 
{"Name": "DistortionTS9", "IsOn": true, "Parameters":[0.0608, 0.4504, 0.7110, 0.0000]}, 
{"Name": "EVH", "IsOn": true, "Parameters":[0.6009, 0.6020, 0.5993, 0.4852, 0.7520]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.6254, 0.5000, 0.5094, 0.6066, 0.6787, 0.5282, 0.5000]}, 
{"Name": "DelayMono", "IsOn": false, "Parameters":[0.3711, 0.2830, 0.4356, 0.6000, 0.0000]}, 
{"Name": "bias.reverb", "IsOn": false, "Parameters":[0.2804, 0.2393, 0.5000, 0.4964, 0.0000, 0.6394, 0.7000, -0.0000]}],
"Checksum": "59"
}
Store preset with filename /HW1_S0511G254004473.json
Message processed:
{"PresetNumber": 0, "UUID": "0B7B5B60-03AC-46CD-AFF9-F5E23392F6E0", 
"Name": "CUSTOM", "Version": "0.7", "Description": "", "Icon": "icon.png", "BPM": 120.0000, 
"Pedals": [
{"Name": "bias.noisegate", "IsOn": true, "Parameters":[0.1667, 0.0000, 1.0000]}, 
{"Name": "BlueComp", "IsOn": false, "Parameters":[0.4863, 0.5253, 0.4931, 0.6441]}, 
{"Name": "DistortionTS9", "IsOn": true, "Parameters":[0.0608, 0.4504, 0.7110, 0.0000]}, 
{"Name": "EVH", "IsOn": true, "Parameters":[0.6009, 0.6020, 0.5993, 0.4852, 0.7520]}, 
{"Name": "GuitarEQ6", "IsOn": true, "Parameters":[0.6254, 0.5000, 0.5094, 0.6066, 0.6787, 0.5282, 0.5000]}, 
{"Name": "DelayMono", "IsOn": false, "Parameters":[0.3711, 0.2830, 0.4356, 0.6000, 0.0000]}, 
{"Name": "bias.reverb", "IsOn": false, "Parameters":[0.2804, 0.2393, 0.5000, 0.4964, 0.0000, 0.6394, 0.7000, -0.0000]}],
"Checksum": "59"
}
Reading missing HW preset 3
Message processed:
{"New HW Preset number": 2}
Preset number changed, preset not cached, getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 3}
Getting current preset from Spark
Reading missing HW preset 4
Message processed:
{"New HW Preset number": 2}
Preset number changed, preset not cached, getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 3}
Getting current preset from Spark
Reading current battery level
Getting current preset from Spark
Preset number changed, preset not cached, getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 4}
Getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 2}
Preset number changed, preset not cached, getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 3}
Getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 1}
Message processed:
{"New HW Preset number": 2}
Preset number changed, preset not cached, getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 3}
Getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 2}
Preset number changed, preset not cached, getting current preset from Spark
Getting current preset from Spark
Message processed:
{"New HW Preset number": 3}
Getting current preset from Spark
Getting current preset from Spark

stangreg · 2025-07-24T08:32:33Z

stangreg
Jul 24, 2025
Maintainer

I would also repeat to read the HW documentation thoroughly for general guidance. Maybe you need to consider the resistors in case you are not using them. This might be required to make the buttons and LEDs to work. Also please double check the overall pin setup of your board and compare with the configured pins in the code. The display pins might be configured in the SparkDisplay.h, I currently have not full access tobte code. Let me know if you find anything.Von meinem iPhone gesendetAm 23.07.2025 um 00:50 schrieb vzoltan ***@***.***>: thanks for both of you however i cant get it work. once i connect the switches and leds to the board it just wont work at all. remove the leds and switches and i can see the data in the serial monitor between the esp32 and spark. obviously user error, but i have no idea. —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>

0 replies

stangreg · 2025-07-24T08:32:34Z

stangreg
Jul 24, 2025
Maintainer

I would also repeat to read the HW documentation thoroughly for general guidance. Maybe you need to consider the resistors in case you are not using them. This might be required to make the buttons and LEDs to work. Also please double check the overall pin setup of your board and compare with the configured pins in the code. The display pins might be configured in the SparkDisplay.h, I currently have not full access tobte code. Let me know if you find anything.Von meinem iPhone gesendetAm 23.07.2025 um 00:50 schrieb vzoltan ***@***.***>: thanks for both of you however i cant get it work. once i connect the switches and leds to the board it just wont work at all. remove the leds and switches and i can see the data in the serial monitor between the esp32 and spark. obviously user error, but i have no idea. —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>

0 replies

stangreg · 2025-07-24T08:32:35Z

stangreg
Jul 24, 2025
Maintainer

I would also repeat to read the HW documentation thoroughly for general guidance. Maybe you need to consider the resistors in case you are not using them. This might be required to make the buttons and LEDs to work. Also please double check the overall pin setup of your board and compare with the configured pins in the code. The display pins might be configured in the SparkDisplay.h, I currently have not full access tobte code. Let me know if you find anything.Von meinem iPhone gesendetAm 23.07.2025 um 00:50 schrieb vzoltan ***@***.***>: thanks for both of you however i cant get it work. once i connect the switches and leds to the board it just wont work at all. remove the leds and switches and i can see the data in the serial monitor between the esp32 and spark. obviously user error, but i have no idea. —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>

0 replies

barsk · 2025-07-24T08:41:20Z

barsk
Jul 24, 2025

The fact that HW 2 seems to be activated repeatedly in the logs (perhaps other inputs too) would indicate that those inputs are "floating" and producing random activations. That might be because of missing pulldown resistors or mis-wiring of those.

0 replies

Using without the special PCB just with the ESP32 itself #59

Uh oh!

vzoltan Jul 21, 2025

Replies: 6 comments · 7 replies

Uh oh!

stangreg Jul 22, 2025 Maintainer

Uh oh!

vzoltan Jul 22, 2025 Author

Uh oh!

barsk Jul 22, 2025

Uh oh!

vzoltan Jul 22, 2025 Author

Uh oh!

vzoltan Jul 23, 2025 Author

Uh oh!

vzoltan Jul 23, 2025 Author

Uh oh!

Uh oh!

barsk Jul 23, 2025

Uh oh!

Uh oh!

vzoltan Jul 23, 2025 Author

Uh oh!

stangreg Jul 24, 2025 Maintainer

Uh oh!

stangreg Jul 24, 2025 Maintainer

Uh oh!

stangreg Jul 24, 2025 Maintainer

Uh oh!

barsk Jul 24, 2025

vzoltan
Jul 21, 2025

Replies: 6 comments 7 replies

stangreg
Jul 22, 2025
Maintainer

vzoltan Jul 22, 2025
Author

vzoltan Jul 22, 2025
Author

vzoltan Jul 23, 2025
Author

vzoltan Jul 23, 2025
Author

barsk
Jul 23, 2025

vzoltan Jul 23, 2025
Author

stangreg
Jul 24, 2025
Maintainer

stangreg
Jul 24, 2025
Maintainer

stangreg
Jul 24, 2025
Maintainer

barsk
Jul 24, 2025