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Troubleshooting • Re: RPi5 Steady red light

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Thanks for your reply @Kip_the_elder

I may have found the cause of the red LED. I was working trough a physical computing lesson connecting LEDs, resisters, and switches to a breadboard when I noticed an LED dimly lit. I hadn't run a python code yet to turn any of the GPIOs on yet. I knew this had to be wrong. So, I disassembled the board and stuck one LED and a 330 ohm resister inline then put a jumper from negative of LED to ground pin 6 and began to plug the positive of the LED, with an additional jumper, to each of the GPIO pins in turn. I found that LED light would be dimly lit on GPIO pins 2, 3, 4, 5, 6, 7, and 8. However, the LED was brighter on GPIO pins 2 and 3 but, not as bright as it would be if it was turned on in a python program. I confirmed this by connecting it to the 3v3 pin 1. I am attaching a pic below to show the dim/half-bright LED. I then tested the header pins with a multimeter. GPIO pins 2 and 3 read 3.308v DC, while GPIO pins 4, 5, 6, 7, and 8 read 3.301v DC. The rest read 0.001v DC. Does this mean it is blown? I tried following a "maker guide" in The Official Raspberry Pi Handbook 2024 'fader.py' on page 119, I could get it to run, no problem, but it wouldn't fade the light as the program was supposed to.

This kinda makes me more suspicious that if the board it messed up, then I'm sure that could be causing the camera app to not work properly.
LED States3.jpg

Statistics: Posted by Rueful-Pi — Wed Feb 28, 2024 2:27 am



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