Flowcode Support Board

Hello Team Matrix

here I am again.
I wanted to flash all possible IN/OUT ports for 1 sec.
GPIO:0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,21,22,23,25,26,27,32,33
all on all off etc.
The simulation works.
3 guesses what doesn't work?
Any ideas?
None of them flashes every second.
6 - 11 fidget somehow
partly on partly off
partly undefined.

If I deactivate 6-11, the rest flashes correctly.

The board comes from AZ-Delivery.

Greeting SpeedPic32

Please read ESP32 documentation ...
https://docs.espressif.com/projects/esp ... /gpio.html

SPI0/1: GPIO6-11 and GPIO16-17 are usually connected to the SPI flash and PSRAM integrated on the module and therefore should not be used for other purposes.

Hello LeighM good tip

Just beware some ports have got pullup/pulldown resistors and as Leigh mentioned are special ones, so avoid using those.

An excellent reference I found whilst having similar issues here, have a check and take note of each and every I/O pin:
https://randomnerdtutorials.com/esp32-p ... nce-gpios/

HTH