bbswitzer / pianoproject Goto Github PK

Hello, this was asked about before however I don't think it was solved.

After installing the correct code onto the ESP32 I though I would be able to connect my phone to the device via MIDI software, however that is not the case. There are no discoverable Bluetooth devices.

Am I missing something? Is there a specific procedure to connect to the ESP32 via Bluetooth?

I have tried different Bluetooth programs and it works perfectly.

Hi Brandon. How to set up the SUSTAIN_PIN correctly in the sketch? I created a new sustain PWM output: "pinMode (SUSTAIN_PIN, OUTPUT);" connected LED to PIN 13, but it doesn't work. In the port monitor (ESP32), I see that a midi signal comes from the Control box (Pro micro), all notes except SUSTAIN. I plugged in the midi keyboard, all notes work just as well except SUSTAIN.
Thanks!

void setup ()
{
const int SUSTAIN_PIN = 13;
pinMode (SUSTAIN_PIN, OUTPUT);
pinMode (LED_BUILTIN, OUTPUT);
Serial.begin (38400);
initializeBluetooth ();

// create sustain PWM output. this can't be done by the Pro Micro because the shift registers are filled up
ledcSetup (0, 100, 8);
ledcAttachPin (SUSTAIN_PIN, 0);
}

Hi Brandon. I have Compilation error, how to solve a problem? Thanks.

C:\Arduino\PianoProject-master (1)\PianoProject-master\ESP32\ESP32.ino: In function 'void flashLED()':
ESP32:33:15: error: 'LED_BUILTIN' was not declared in this scope
digitalWrite(LED_BUILTIN, HIGH);
^
C:\Arduino\PianoProject-master (1)\PianoProject-master\ESP32\ESP32.ino: In function 'void setup()':
ESP32:47:10: error: 'LED_BUILTIN' was not declared in this scope
pinMode(LED_BUILTIN, OUTPUT);
^
exit status 1
'LED_BUILTIN' was not declared in this scope

Hi Brandon,
I appreciate a lot your work, and I am trying to use it for a very similar project on a small old organ.
I'm having some issues on bonding the esp32 with android, in order to get it seen as a MIDI-output by synthesia.
I tried several times (also using "nRF Connect" or "Serial Bluetooth Terminal", also pressing the EN button) to pair the esp32 with my smartphone (and I tried with other smartphones too)... I think I am just missing something... Do you have any ideas? (I'm using your code as it is now).
Thank you soo much,
Matteo