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Index > MobiFlight Hardware & Firmware > Can't use all the pins on a ATmega32U4 (Pro Micro)
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Message #22944
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jeff_d
Posts: 15
Supporter
I have several ATmega32U4 arduino clones. I was originally using them as JoySticks with custom FW I wrote. However, I found out I couldn't access the GS530/430 controls in FS. I then followed the rabbit hole down the FSUIPC + MobiFlight path. I successfully updated the FW on the boards using Mobi. However, Mobi sees them as SparkFun Qwiic Pro Micro even though they are made by AITRIP.

My issue is that I can't use all of the pins on the boards. The board pins are 0-10,14-16 and then the analog pins can be used as digital via pins 18-21 (A0-A3). All of the pins have the ability for INPUT_PULLUP and digitalRead. However, MobiFlight Doesn't allow my to choose any pin# > 16 and includes pins11-13. While I can type in a pin number in the drop down flashing the device with that pin number doesn't work. Is there anyone to use more of the pins? Would be nice if I could just say to Mobi No really I want to use pin X even if you don't think it is there.

Thanks, Jeff
2021-04-20 08:54
Message #22945
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jeff_d
Posts: 15
Supporter
Well I was able to get A1 and A2 to work by loading a hand edited a .mfmc but still leaves me without pins A0 and A3. A2 maps to pin 20 but should be 22. A1 maps to19 but should be 21. Would love to see what the FW code looks like that is setting the pins. I guess I can live with being two pins short. Can't wait to actually play the sim ;)
[Last edited by jeff_d, 2021-04-20 09:39]
2021-04-20 09:29
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Index > MobiFlight Hardware & Firmware > Can't use all the pins on a ATmega32U4 (Pro Micro)