T-Echo GPIOs numeration

1

Tried to play a little with GPIOs of T-echo and got two questions:

  1. How to address in the External Notification module settings such GPIO as P1.06 or P1.07?
  2. I tried to use P0.08 (8) as a buzzer (redefine PIN_BUZZER) without success. Only the P0.06 (6) works fine as a buzzer. What’s wrong?
2

Got an answer from Caveman in Discord:
To use P1.x in Meshtastic app you need to enter gpio number as x+32.

3

The buzzer works fine on P1.06 (number 38 in the app).

4

Hey Philip

I’m trying to install a rotary encoder on the T-echo (yes crazy!)
I have install the Expansion Module
And found:

P0.06 = 6
P.0.08 = 8
P1.06 = 38

But P1.07 is not 39
Have you found what it is equal to in Meshtastic?

5

No, I haven’t try to find it.

6

I wonder if it’s because P1.07 is being used as a placeholder for an unused SPI pin?