Fix touch sensor hardware wiring

README.md

@@ -54,7 +54,7 @@ pip install -U platformio
 platformio run -t upload && platformio device monitor -b 115200
 ```
 
-* Convert mp3 files: `sox ~/Music/input.mp3 -c 1 -r 11025 output.wav trim 0 30`
+* Convert mp3 files: `sox ~/Music/input.mp3 -c 1 -r 11025 -b 16 output.wav trim 0 30`
 * SD card is tested with one FAT16 partion
 
 ## ToDo

src/keyboard.cpp

@@ -37,6 +37,8 @@ static void tp_example_rtc_intr(void *arg) {
 }
 
 bool Keyboard::getTouchDetected(uint8_t pad) {
+  if (pad==8) pad=9;  // fix hardware wiring
+  if (pad==1) pad=8;
   bool res = s_pad_activated[pad];
   s_pad_activated[pad] = false;
   return res;

src/main.cpp

@@ -54,7 +54,8 @@ void loop()
   for(int i=0; i<=9; i++) {
     if (keyboard.getTouchDetected(i) == true) {
       touched = true;
-        Serial.println("touch");
+        Serial.print("touch ");
+        Serial.println(i, DEC);
       if (sound.playing == false) {
         Serial.println("new task");
         xTaskCreate(&(Sound::buffer_refill_task), "buffer_refill_task", 4096, (void*)soundFile[i/3][i%3], 5, &xTaskSound);