ESP32 GPIO25 and GPIO26 Function

[梁帅]

The GPIO25 and GPIO26 of the ESP32 chip (and ESP32-PICO-D4) are DAC pins. By default, there is no PWM output in MicroBlocks. Can I set the function of the pin by myself?

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[John Maloney]

You can't change that behavior from MicroBlocks, but if you build the firmware yourself you can comment out these lines (around line 900) in ioPrims.cpp:

        if ((25 == pinNum) || (26 == pinNum)) { // ESP32 DAC pins
            dacWrite(pinNum, value);
            return;
        }

[梁帅]

Cool! Thank you so much!