How to use digitalWrite for all pins from Ai-M61-32S Kit with BL618?

[leon-anavi]

Hi,

Ai-M61-32S Kit with Bouffalo BL618 provides RGB LED wired to IO12 (red), IO14 (green) and IO12 (blue) as well as an additional LED wired to IO27.

However, at the moment in wiring_digital.c pins 12, 14 and 27 are set only as analog (aka ADC): https://github.com/bouffalolab/arduino-bouffalo/blob/main/cores/bl616/wiring_digital.c#L16

Because of this digitalWrite fails for them and prints the following error message:

this pin is not used as a digital pin

Here is the line causing this: https://github.com/bouffalolab/arduino-bouffalo/blob/main/cores/bl616/wiring_digital.c#L113C17-L113C54

With the current Arduino port for Bouffalo, is there a way to use the pins listed in pin_adc like 12, 14 and 27 as digital pins?

Note a similar issue has been reported in #1

Best regards, Leon

[profound1987]

Hi leon-anavi
All GPIOs can be used as digital pin. you can do as following:

1. remove the pin(12/14/27) used by wiring_analog.c

2. remove the pin(12/14/27) from uint8_t pin_adc[PIN_ADC_CNT] = {0, 1, 10, 12, 13, 14, 19, 20, 27};
3. add the pin(12/14/27) to uint8_t pin_gpio[] = {11, 15, 16, 17, 18, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34};

[leon-anavi]

@profound1987 thank you for the feedback. Let's me clarify that my questions was how to use digitalWrite for all pins from Ai-M61-32S Kit with BL618 from the Arduino sketch (the .ino file) without modifications in arduino-bouffalo? Is there a way to do it?