LED issue pins bellow D13 | MobiFlight | Page 1

gritty crane Jun 16, 2024, 9:49 PM

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hello. I must be doing something wrong. I don't manage to turn on my LEDs when connected to the D2 to D13 pins, those with PWM. I've looked att he "Getting Started 2023 - MobiFlight Tutorial" where everything looks as I set up my stuff, but, the LED stays off...
When connected to D13 and above, eveything works as a charm. I'm kindda lazy reconnecting my already connceted LEDs since I've just finished all the wiring and (bad panda), did not test all the LEDs... But I'm sure there is a solution.

Help is highly appreciated!! thanks a lot

desert surge Jun 16, 2024, 9:50 PM

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We can't help unless you post a screenshot of one of the led module configurations and the associated output config that isn't working.

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Also what board you are using

gritty crane Jun 16, 2024, 9:53 PM

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hello Neil, Its a Mega 2560

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this one is just fine

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inoperative setup with the D2 connection

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functioning setup with D13

desert surge Jun 16, 2024, 9:59 PM

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What does the output tab of the main window show for those rows when the sim is running and you expect the LEDs to be on

gritty crane Jun 16, 2024, 10:01 PM

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this info

desert surge Jun 16, 2024, 10:01 PM

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The whole main window with the output tab showing

gritty crane Jun 16, 2024, 10:03 PM

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sorry, here

desert surge Jun 16, 2024, 10:06 PM

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Does it work when you press test? Right now your screenshot shows you aren't running so it is outputting a 0

gritty crane Jun 16, 2024, 10:08 PM

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you mean the test mode or testing the current setting? none do turn on the LED

desert surge Jun 16, 2024, 10:10 PM

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If neither turn on the led then this is almost certainly a wiring issue

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Make sure you didn't get the connections backwards for all those leds

split river Jun 16, 2024, 10:12 PM

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desert surge Make sure you didn't get the connections backwards for all those leds

I suspected the same.

gritty crane Jun 16, 2024, 10:13 PM

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this was my initial thought too, but when connected to pins different from D2 to D12, and only jumping the "+" wire, the LED goes on when testing

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hit me. just tests D12, on... sorry guys... and thank you all

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😵‍💫

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don't know what is going on with the first pins

split river Jun 16, 2024, 10:16 PM

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If you are sure that the wiring goes from the arduino pin to the positive leg of the led, I think it is time to take out your multimeter and actually verify that you get a voltage out of those pins. It could be your Arduino is faulty.

#LED issue pins bellow D13