[+] Firmware

Wactroller/Firmware/src/main.cpp

@@ -0,0 +1,50 @@
+#include <Arduino.h>
+#include <FastLED.h>
+#include "sweets.h"
+
+constexpr u8 N_TOUCH_PINS = 12;
+constexpr u8 TOUCH_PINS[N_TOUCH_PINS] = {
+    GPIO_NUM_5, GPIO_NUM_6, GPIO_NUM_7, GPIO_NUM_8,
+    GPIO_NUM_1, GPIO_NUM_2, GPIO_NUM_3, GPIO_NUM_4,
+    GPIO_NUM_9, GPIO_NUM_10, GPIO_NUM_11, GPIO_NUM_12
+};
+
+// WS2812B LED data pin for the 12 touch sensors
+constexpr u8 LED_PIN = GPIO_NUM_37;
+CRGB leds[N_TOUCH_PINS];
+
+// One single WS2812B status LED
+constexpr u8 STATUS_LED_PIN = GPIO_NUM_38;
+CRGB status_led[1];
+
+void setup()
+{
+    // Initialize the LED pin as an output
+    pinMode(LED_PIN, OUTPUT);
+    pinMode(STATUS_LED_PIN, OUTPUT);
+    digitalWrite(LED_PIN, LOW);
+    digitalWrite(STATUS_LED_PIN, LOW);
+
+    // Initialize the touch pins as inputs
+    for (val &pin : TOUCH_PINS) {
+        pinMode(pin, INPUT);
+    }
+
+    // Initialize the LED strip
+    CFastLED::addLeds<WS2812B, LED_PIN>(leds, N_TOUCH_PINS);
+    CFastLED::addLeds<WS2812B, STATUS_LED_PIN>(status_led, 1);
+
+    // Initialize the serial port
+    Serial.begin(115200);
+}
+
+void loop() {
+    // Read the touch pins,
+    for (val &pin : TOUCH_PINS) {
+        // Set the LED color to red if the pin is touched
+        leds[pin] = digitalRead(pin) ? CRGB::Red : CRGB::Black;
+    }
+
+    // Update the LED strip
+    CFastLED::show();
+}