pinMode setting issue

[Sean shao]

When a pin is used as an output pin and then reconfigured as an input pin in the program, it does not work properly. To reassign the pin mode as a digital input, it is necessary to unplug and re-plug the USB cable.

[John Maloney]

Switching pin modes should work, and does on most boards. What board are you using?

Are you setting the output pin to true/false or to a number?

When you switch to using the pin as an input, what does it do and what did you expect it to do?

Could you provide a short example that demonstrates the problem?

[Sean shao]

First, set the pin output as digital output, then change it to analog output, and then switch back to digital output. Switching several times will make the pin's digital output fail.

[Sean shao]

Wemos D1 R32 with ESP32 chip

[Sean shao]

demo video

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[John Maloney]

I thought the issue was probably analog output.

For some reason, the Arduino library does not have a way to turn off analog output on a pin once it is started.

The pilot release has a work-around for that issue but, from the video, I think you are already using a version of MicroBlocks with the work-around.

Thank you for creating that video! From watching that, I see that there may be a problem when you switch between digital and analog output several times. I will try to reproduce it.

[John Maloney]

This issue is fixed in the pilot release. Thanks for reporting it.