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Merge pull request #482 from recrof/dev
initial support for Seeed Studio SenseCap Solar board
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‎boards/seeed_sensecap_solar.json‎

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{
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"build": {
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"arduino": {
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"ldscript": "nrf52840_s140_v7.ld"
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},
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"core": "nRF5",
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"cpu": "cortex-m4",
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"extra_flags": "-DARDUINO_Seeed_XIAO_nRF52840 -DNRF52840_XXAA -DSEEED_XIAO_NRF52840 ",
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"f_cpu": "64000000L",
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"hwids": [
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[ "0x2886", "0x0059" ]
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],
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"mcu": "nrf52840",
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"variant": "Seeed_XIAO_nRF52840",
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"softdevice": {
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"sd_flags": "-DS140",
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"sd_name": "s140",
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"sd_version": "7.3.0",
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"sd_fwid": "0x0123"
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},
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"bsp": {
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"name": "adafruit"
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},
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"bootloader": {
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"settings_addr": "0xFF000"
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},
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"usb_product": "XIAO nRF52840"
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},
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"connectivity": [
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"bluetooth"
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],
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"debug": {
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"jlink_device": "nRF52840_xxAA",
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"openocd_target": "nrf52.cfg",
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"svd_path": "nrf52840.svd"
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},
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"frameworks": [
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"arduino"
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],
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"name": "Seeed Studio XIAO nRF52840",
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"upload": {
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"maximum_ram_size": 248832,
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"maximum_size": 815104,
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"protocol": "nrfutil",
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"speed": 115200,
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"protocols": [
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"jlink",
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"nrfjprog",
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"nrfutil",
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"cmsis-dap",
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"sam-ba",
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"blackmagic"
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],
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"use_1200bps_touch": true,
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"require_upload_port": true,
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"wait_for_upload_port": true
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},
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"url": "https://wiki.seeedstudio.com/meshtastic_solar_node/",
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"vendor": "Seeed Studio"
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}

‎variants/sensecap_solar/SenseCapSolarBoard.cpp‎

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#include <Arduino.h>
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#include "SenseCapSolarBoard.h"
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#include <bluefruit.h>
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#include <Wire.h>
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static BLEDfu bledfu;
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static void connect_callback(uint16_t conn_handle) {
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(void)conn_handle;
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MESH_DEBUG_PRINTLN("BLE client connected");
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}
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static void disconnect_callback(uint16_t conn_handle, uint8_t reason) {
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(void)conn_handle;
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(void)reason;
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MESH_DEBUG_PRINTLN("BLE client disconnected");
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}
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void SenseCapSolarBoard::begin() {
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// for future use, sub-classes SHOULD call this from their begin()
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startup_reason = BD_STARTUP_NORMAL;
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#if defined(PIN_WIRE_SDA) && defined(PIN_WIRE_SCL)
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Wire.setPins(PIN_WIRE_SDA, PIN_WIRE_SCL);
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#endif
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Wire.begin();
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#ifdef P_LORA_TX_LED
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pinMode(P_LORA_TX_LED, OUTPUT);
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digitalWrite(P_LORA_TX_LED, HIGH);
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#endif
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delay(10); // give sx1262 some time to power up
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}
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bool SenseCapSolarBoard::startOTAUpdate(const char* id, char reply[]) {
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// Config the peripheral connection with maximum bandwidth
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// more SRAM required by SoftDevice
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// Note: All config***() function must be called before begin()
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Bluefruit.configPrphBandwidth(BANDWIDTH_MAX);
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Bluefruit.configPrphConn(92, BLE_GAP_EVENT_LENGTH_MIN, 16, 16);
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Bluefruit.begin(1, 0);
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// Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
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Bluefruit.setTxPower(4);
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// Set the BLE device name
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Bluefruit.setName("SENSECAP_SOLAR_OTA");
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Bluefruit.Periph.setConnectCallback(connect_callback);
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Bluefruit.Periph.setDisconnectCallback(disconnect_callback);
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// To be consistent OTA DFU should be added first if it exists
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bledfu.begin();
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// Set up and start advertising
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// Advertising packet
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Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
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Bluefruit.Advertising.addTxPower();
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Bluefruit.Advertising.addName();
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/* Start Advertising
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- Enable auto advertising if disconnected
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- Interval: fast mode = 20 ms, slow mode = 152.5 ms
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- Timeout for fast mode is 30 seconds
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- Start(timeout) with timeout = 0 will advertise forever (until connected)
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For recommended advertising interval
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https://developer.apple.com/library/content/qa/qa1931/_index.html
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*/
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Bluefruit.Advertising.restartOnDisconnect(true);
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Bluefruit.Advertising.setInterval(32, 244); // in unit of 0.625 ms
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Bluefruit.Advertising.setFastTimeout(30); // number of seconds in fast mode
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Bluefruit.Advertising.start(0); // 0 = Don't stop advertising after n seconds
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strcpy(reply, "OK - started");
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return true;
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}

‎variants/sensecap_solar/SenseCapSolarBoard.h‎

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#pragma once
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#include <MeshCore.h>
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#include <Arduino.h>
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class SenseCapSolarBoard : public mesh::MainBoard {
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protected:
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uint8_t startup_reason;
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public:
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void begin();
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uint8_t getStartupReason() const override { return startup_reason; }
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#if defined(P_LORA_TX_LED)
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void onBeforeTransmit() override {
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digitalWrite(P_LORA_TX_LED, LOW); // turn TX LED on
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}
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void onAfterTransmit() override {
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digitalWrite(P_LORA_TX_LED, HIGH); // turn TX LED off
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}
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#endif
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uint16_t getBattMilliVolts() override {
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digitalWrite(VBAT_ENABLE, LOW);
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int adcvalue = 0;
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analogReadResolution(12);
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analogReference(AR_INTERNAL_3_0);
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delay(10);
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adcvalue = analogRead(BATTERY_PIN);
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return (adcvalue * ADC_MULTIPLIER * AREF_VOLTAGE) / 4.096;
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}
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const char* getManufacturerName() const override {
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return "Seeed SenseCap Solar";
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}
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void reboot() override {
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NVIC_SystemReset();
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}
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bool startOTAUpdate(const char* id, char reply[]) override;
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};

‎variants/sensecap_solar/platformio.ini‎

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[SenseCap_Solar]
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extends = nrf52_base
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board = seeed_sensecap_solar
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board_build.ldscript = boards/nrf52840_s140_v7.ld
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build_flags = ${nrf52_base.build_flags}
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-I lib/nrf52/s140_nrf52_7.3.0_API/include
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-I lib/nrf52/s140_nrf52_7.3.0_API/include/nrf52
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-I variants/sensecap_solar
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-I src/helpers/nrf52
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-D NRF52_PLATFORM=1
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-D RADIO_CLASS=CustomSX1262
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-D WRAPPER_CLASS=CustomSX1262Wrapper
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-D P_LORA_TX_LED=12
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-D P_LORA_DIO_1=1
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-D P_LORA_RESET=2
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-D P_LORA_BUSY=3
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-D P_LORA_NSS=4
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-D LORA_TX_POWER=22
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-D SX126X_RXEN=5
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-D SX126X_TXEN=RADIOLIB_NC
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-D SX126X_DIO2_AS_RF_SWITCH=1
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-D SX126X_DIO3_TCXO_VOLTAGE=1.8
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-D SX126X_CURRENT_LIMIT=140
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-D SX126X_RX_BOOSTED_GAIN=1
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-D ENV_INCLUDE_AHTX0=1
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-D ENV_INCLUDE_BME280=1
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-D ENV_INCLUDE_BMP280=1
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-D ENV_INCLUDE_SHTC3=1
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-D ENV_INCLUDE_LPS22HB=1
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-D ENV_INCLUDE_INA3221=1
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-D ENV_INCLUDE_INA219=1
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build_src_filter = ${nrf52_base.build_src_filter}
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+<helpers/*.cpp>
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+<helpers/sensors>
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+<helpers/nrf52/SenseCapSolarBoard.cpp>
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+<../variants/SenseCap_Solar>
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debug_tool = jlink
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upload_protocol = nrfutil
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lib_deps =
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${nrf52_base.lib_deps}
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rweather/Crypto @ ^0.4.0
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adafruit/Adafruit INA3221 Library @ ^1.0.1
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adafruit/Adafruit INA219 @ ^1.2.3
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adafruit/Adafruit AHTX0 @ ^2.0.5
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adafruit/Adafruit BME280 Library @ ^2.3.0
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adafruit/Adafruit BMP280 Library @ ^2.6.8
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adafruit/Adafruit SHTC3 Library @ ^1.0.1
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arduino-libraries/Arduino_LPS22HB @ ^1.0.2
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[env:SenseCap_Solar_repeater]
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extends = SenseCap_Solar
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build_flags =
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${SenseCap_Solar.build_flags}
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-D ADVERT_NAME='"SenseCap_Solar Repeater"'
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-D ADVERT_LAT=0.0
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-D ADVERT_LON=0.0
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-D ADMIN_PASSWORD='"password"'
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-D MAX_NEIGHBOURS=8
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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build_src_filter = ${SenseCap_Solar.build_src_filter}
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+<../examples/simple_repeater/main.cpp>
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[env:SenseCap_Solar_room_server]
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extends = SenseCap_Solar
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build_flags =
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${SenseCap_Solar.build_flags}
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-D ADVERT_NAME='"SenseCap_Solar Room"'
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-D ADVERT_LAT=0.0
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-D ADVERT_LON=0.0
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-D ADMIN_PASSWORD='"password"'
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; -D MESH_PACKET_LOGGING=1
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; -D MESH_DEBUG=1
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build_src_filter = ${SenseCap_Solar.build_src_filter}
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+<../examples/simple_room_server/main.cpp>

‎variants/sensecap_solar/target.cpp‎

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#include <Arduino.h>
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#include "target.h"
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#include <helpers/ArduinoHelpers.h>
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SenseCapSolarBoard board;
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
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WRAPPER_CLASS radio_driver(radio, board);
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VolatileRTCClock fallback_clock;
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AutoDiscoverRTCClock rtc_clock(fallback_clock);
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EnvironmentSensorManager sensors;
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bool radio_init() {
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rtc_clock.begin(Wire);
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return radio.std_init(&SPI);
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}
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uint32_t radio_get_rng_seed() {
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return radio.random(0x7FFFFFFF);
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}
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void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
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radio.setFrequency(freq);
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radio.setSpreadingFactor(sf);
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radio.setBandwidth(bw);
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radio.setCodingRate(cr);
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}
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void radio_set_tx_power(uint8_t dbm) {
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radio.setOutputPower(dbm);
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}
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mesh::LocalIdentity radio_new_identity() {
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RadioNoiseListener rng(radio);
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return mesh::LocalIdentity(&rng); // create new random identity
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}

‎variants/sensecap_solar/target.h‎

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#pragma once
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#define RADIOLIB_STATIC_ONLY 1
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#include <RadioLib.h>
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#include <helpers/RadioLibWrappers.h>
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#include <SenseCapSolarBoard.h>
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#include <helpers/CustomSX1262Wrapper.h>
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#include <helpers/AutoDiscoverRTCClock.h>
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#include <helpers/ArduinoHelpers.h>
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#include <helpers/sensors/EnvironmentSensorManager.h>
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extern SenseCapSolarBoard board;
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extern WRAPPER_CLASS radio_driver;
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extern AutoDiscoverRTCClock rtc_clock;
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extern EnvironmentSensorManager sensors;
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bool radio_init();
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uint32_t radio_get_rng_seed();
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void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
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void radio_set_tx_power(uint8_t dbm);
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mesh::LocalIdentity radio_new_identity();

‎variants/sensecap_solar/variant.cpp‎

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#include "variant.h"
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#include "wiring_constants.h"
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#include "wiring_digital.h"
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#include "nrf.h"
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const uint32_t g_ADigitalPinMap[] = {
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// D0 .. D10 - Peripheral control pins
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2, // D0 P0.02 (A0) GNSS_WAKEUP
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3, // D1 P0.03 (A1) LORA_DIO1
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28, // D2 P0.28 (A2) LORA_RESET
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29, // D3 P0.29 (A3) LORA_BUSY
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4, // D4 P0.04 (A4/SDA) LORA_CS
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5, // D5 P0.05 (A5/SCL) LORA_SW
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43, // D6 P1.11 (UART_TX) GNSS_TX
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44, // D7 P1.12 (UART_RX) GNSS_RX
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45, // D8 P1.13 (SPI_SCK) LORA_SCK
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46, // D9 P1.14 (SPI_MISO) LORA_MISO
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47, // D10 P1.15 (SPI_MOSI) LORA_MOSI
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// D11-D12 - LED outputs
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15, // D11 P0.15 User LED
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19, // D12 P0.19 Breathing LED
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// D13 - User input
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33, // D13 P1.01 User Button
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// D14-D15 - Grove/NFC interface
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9, // D14 P0.09 NFC1/GROVE_D1
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10, // D15 P0.10 NFC2/GROVE_D0
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// D16 - Power management
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// 31, // D16 P0.31 VBAT_ADC (Battery voltage)
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31, // D16 P0.31 VBAT_ADC (Battery voltage)
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// D17 - GNSS control
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35, // D17 P1.03 GNSS_RESET
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37, // D18 P1.05 GNSS_ENABLE
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14, // D19 P0.14 BAT_READ
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39, // D20 P1.07 USER_BUTTON
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//
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21, // D21 P0.21 (QSPI_SCK)
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25, // D22 P0.25 (QSPI_CSN)
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20, // D23 P0.20 (QSPI_SIO_0 DI)
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24, // D24 P0.24 (QSPI_SIO_1 DO)
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22, // D25 P0.22 (QSPI_SIO_2 WP)
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23, // D26 P0.23 (QSPI_SIO_3 HOLD)
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};
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void initVariant() {
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pinMode(GPS_EN, OUTPUT);
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digitalWrite(GPS_EN, LOW);
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pinMode(BATTERY_PIN, INPUT);
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pinMode(VBAT_ENABLE, OUTPUT);
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digitalWrite(VBAT_ENABLE, LOW);
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pinMode(PIN_QSPI_CS, OUTPUT);
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digitalWrite(PIN_QSPI_CS, HIGH);
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pinMode(LED_GREEN, OUTPUT);
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digitalWrite(LED_GREEN, LOW);
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pinMode(LED_BLUE, OUTPUT);
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digitalWrite(LED_BLUE, LOW);
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pinMode(GPS_EN, OUTPUT);
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digitalWrite(GPS_EN, HIGH);
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}

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