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0 votes

What type of pin header is this?

These are corrupted female headers so remove them and solder new ones.
szachy-a's user avatar
3 votes
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Why isn't pin 6 on my Adafruit Feather RP2040 being sent high when I ask it to?

Turns out I misled you with my ignorance. I took for granted that the thing labeled "6" on the front was in fact Pin 6, but it's not: Indeed, if I turn it over, that's "GP08": ......
Jeff Schaller's user avatar
2 votes

Why isn't pin 6 on my Adafruit Feather RP2040 being sent high when I ask it to?

The pin labeled as GP06 on the bottom side of the PCB is labeled as D4 on the top side of the PCB. It is pin 4. from https://learn.adafruit.com/adafruit-feather-rp2040-pico/pinouts D4/GP06 - Digital ...
Juraj's user avatar
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4 votes
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Just one more pin!

As a (slightly hacky and binary :) ) suggestion, you could use just two LEDs and free up a pin with the following... Level 1 - LED 1 on, LED 2 off Level 2 - LED 1 off, LED 2 on Level 3 - LED 1 on, LED ...
ledhacker's user avatar
2 votes

Just one more pin!

You may try charlieplexing your LEDs. Using only 3 digital pins you can drive up to 6 LEDs. A web search for “charlieplexing Arduino” should get you started.
Edgar Bonet's user avatar
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