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Add remaining examples
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‎examples/Inkplate6COLOR/Advanced/Communication/BluetoothSerial/BluetoothSerial.ino‎

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/**
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**************************************************
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*
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* @file BluetoothSerial.ino
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* @brief Example showing how to use Bluetooth Serial on Inkplate 6
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* with an LVGL-based UI that safely renders incoming text.
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*
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* HOW TO USE
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* - Upload this example to Inkplate 6COLOR.
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* - Pair your phone with the device in Bluetooth settings (device name: "Inkplate 6COLOR").
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* - Open a Serial Bluetooth Terminal app (or similar) and connect to "Inkplate6".
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* - Anything you type in the app will be shown on the serial monitor.
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* - Anything you type in the Arduino Serial Monitor will be sent to the phone.
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*
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*
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* For info on how to quickly get started with Inkplate 6 visit
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* https://soldered.com/documentation/inkplate/6/overview/
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*
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* @authors Soldered
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* @date November 2025
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**************************************************
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*/
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#include <Inkplate-LVGL.h>
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#include "BluetoothSerial.h"
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Inkplate inkplate; // Inkplate LVGL display instance
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BluetoothSerial SerialBT; // Bluetooth Serial object
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const char *btDeviceName = "Inkplate 6COLOR"; // Bluetooth device name
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// Forward declaration
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void setLabelText(lv_obj_t *label, const char *text);
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void setup()
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{
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Serial.begin(115200);
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// Initialize Inkplate in FULL render mode (for LVGL)
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inkplate.begin(LV_DISP_RENDER_MODE_FULL);
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// Set white background
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lv_obj_set_style_bg_color(lv_screen_active(), lv_color_hex(0xFFFFFF), LV_PART_MAIN);
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// Create centered LVGL label
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lv_obj_t *label = lv_label_create(lv_screen_active());
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lv_obj_set_style_text_color(label, lv_color_hex(0x000000), LV_PART_MAIN);
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lv_obj_set_style_text_font(label, &lv_font_montserrat_28, 0);
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
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// Initial startup message
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Serial.println("Initializing Bluetooth...");
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// Attempt to start Bluetooth
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if (!SerialBT.begin(btDeviceName))
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{
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setLabelText(label, "Error initializing Bluetooth!");
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}
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else
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{
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// Success message
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setLabelText(label,
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"Bluetooth Serial\n\n"
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"Device: Inkplate 6COLOR\n\n"
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"Pair your phone and connect\n"
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"using a Serial Bluetooth app.\n\n"
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"Baud: 115200");
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}
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// Render the LVGL content
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lv_tick_inc(50);
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lv_timer_handler();
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inkplate.display();
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}
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void loop()
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{
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// Forward data from USB Serial → Bluetooth
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if (Serial.available())
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{
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while (Serial.available())
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{
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SerialBT.write(Serial.read());
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}
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}
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// Forward data from Bluetooth → USB Serial
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if (SerialBT.available())
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{
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while (SerialBT.available())
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{
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Serial.write(SerialBT.read());
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}
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}
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delay(20);
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}
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// update LVGL label text and refresh display
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void setLabelText(lv_obj_t *label, const char *text)
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{
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lv_label_set_text(label, text);
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
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lv_tick_inc(50);
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lv_timer_handler();
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inkplate.display();
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}

‎examples/Inkplate6COLOR/Advanced/IO/ExternalExpander/ExternalExpander.ino‎

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/**
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**************************************************
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*
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* @file ExternalExpander.ino
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* @brief Example showing how to set up the external expander to blink an LED on all of the pins
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*
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* For info on how to quickly get started with Inkplate 6COLOR visit https://soldered.com/documentation/inkplate/6color/overview/
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*
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* Connect an LED alongside a 330ohm resistor to one of the external expander pins
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*
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* @authors Soldered
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* @date November 2025
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***************************************************/
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#include "Inkplate-LVGL.h" //Include Inkplate library to the sketch
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Inkplate display; // Create an instance of the Inkplate object
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void setup()
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{
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display.begin(LV_DISP_RENDER_MODE_PARTIAL); // Init Inkplate library and LVGL in PARTIAL rende mode
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// Set all of the pins (P0-0 to P1-7) to output
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// Note: P0-0 is defined as 0, up to P1-7 which is defined as 15
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for(int i=0;i<16;i++)
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{
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display.externalIO.pinMode(i, OUTPUT);
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}
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}
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void loop()
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{
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// Set all of the GPIO pins to LOW
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for(int i=0;i<16;i++)
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{
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display.externalIO.digitalWrite(i, LOW);
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}
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delay(1000); // Wait for one second
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// Set all of the GPIO pins to HIGH
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for(int i=0;i<16;i++)
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{
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display.externalIO.digitalWrite(i, HIGH);
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}
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delay(1000); // Wait for one second
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}

‎examples/Inkplate6COLOR/Advanced/Other/EEPROMUsage/EEPROMUsage.ino‎

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/**
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**************************************************
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*
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* @file EEPROMUsage.ino
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* @brief Example showing how to clear, write to and read from the onboard EEPROM
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*
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* For info on how to quickly get started with Inkplate 6COLOR visit https://soldered.com/documentation/inkplate/6color/overview/
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*
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* @authors Soldered
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* @date November 2025
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***************************************************/
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#include "EEPROM.h" // Include ESP32 EEPROM library
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#include "Inkplate-LVGL.h" // Include Inkplate library to the sketch
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#define EEPROM_SIZE 128 // How much data to write to EEPROM in this example
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Inkplate display; // Create object on Inkplate library and set library to work in monochrome mode
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void setup()
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{
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Serial.begin(115200); // Init serial monitor to display what's happening
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display.begin(LV_DISP_RENDER_MODE_FULL); // Init library (you should call this function ONLY ONCE)
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// Init EEPROM library with 128 of EEPROM size.
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EEPROM.begin(EEPROM_SIZE);
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Serial.println("Cleaning EEPROM..."); // Print message on serial monitor
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clearEEPROM(); // Clear user EEPROM data
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delay(500); // Wait a little bit...
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Serial.println("Writing data to EEPROM..."); // Print message on serial monitor
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writeEEPROM(); // Write some data to EEPROM
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delay(500); // Wait a little bit...
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Serial.println("Reading data from EEPROM..."); // Print message on the Sserial Monitor
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printEEPROM(); // Read data from EEPROM and display it on screen
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delay(500); // Wait a little bit...
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}
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void loop()
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{
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// Empty...
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}
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// Function for clearing EEPROM data
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void clearEEPROM()
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{
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for (int i = 0; i < EEPROM_SIZE; i++)
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{
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EEPROM.write(i, 0);
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}
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EEPROM.commit();
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}
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// Function writes data to EEPROM
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void writeEEPROM()
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{
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for (int i = 0; i < EEPROM_SIZE; i++)
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{
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EEPROM.write(i, i);
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}
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EEPROM.commit();
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}
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// Function reads back previously written data and displays it on serial monitor and screen.
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void printEEPROM()
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{
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for (int i = 0; i < EEPROM_SIZE; i++)
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{
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Serial.print(EEPROM.read(i), DEC);
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if (i != EEPROM_SIZE - 1)
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{
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Serial.print(", ");
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}
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}
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}

‎examples/Inkplate6COLOR/Advanced/Other/ReadBatteryVoltage/ReadBatteryVoltage.ino‎

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/**
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**************************************************
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*
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* @file ImageFromBuffer.ino
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* @brief Example showing how to read the battery voltage and display it on the screen
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*
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* For info on how to quickly get started with Inkplate 6COLOR visit https://soldered.com/documentation/inkplate/6color/overview/
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*
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* @authors Soldered
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* @date November 2025
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***************************************************/
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#include <Inkplate-LVGL.h>
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Inkplate inkplate; // Create an instance of the Inkplate object
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// Helper function to update LVGL label and refresh display
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void updateLabel(lv_obj_t *label, const char *text)
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{
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lv_label_set_text(label, text);
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
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lv_tick_inc(50);
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lv_timer_handler();
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inkplate.display();
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}
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void setup()
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{
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// Initialize Inkplate in FULL mode (required for LVGL)
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inkplate.begin(LV_DISP_RENDER_MODE_FULL);
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// White background
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lv_obj_set_style_bg_color(lv_screen_active(), lv_color_hex(0xFFFFFF), LV_PART_MAIN);
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// Create LVGL label for voltage display
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lv_obj_t *label = lv_label_create(lv_screen_active());
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lv_obj_set_style_text_font(label, &lv_font_montserrat_48, 0);
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lv_obj_set_style_text_color(label, lv_color_hex(0x0000AA), LV_PART_MAIN); // blue-ish
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
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}
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void loop()
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{
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float voltage = inkplate.readBattery(); // Read battery voltage
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// Format voltage text
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char txt[32];
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snprintf(txt, sizeof(txt), "%.2f V", voltage);
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// Update existing LVGL label (child #0)
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lv_obj_t *label = lv_obj_get_child(lv_screen_active(), 0);
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updateLabel(label, txt);
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delay(60000); // Refresh every 60 seconds
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}

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