Alright, I’m working on a quite extensive project, for my first arduino project. Tough I’m familiar with C coding. I’m doing something that switches 8 high powered automotive leds to the sound of a bass drum in a few different patterns. Right now I’m just prototyping it, so I’m using standard leds.
So I was wiring up a switch to enable the user to choose if he’s plugging 4 or 8 lights and I probably shorted something. I had connected the +5v, digitalPin 2 and the ground to my switch but forgot to put a tie down resistor. So when I switched it, my computer gave me a warning that the usb port was drawing too much power.
But now, the leds connected to digitalPin 11 and 12 are dimmed. It’s not the leds as they work on other pins.
Good thing I waited to post, I commented serialPrints and they started working properly. But now I’m having trouble with pins 6 and 7, yet 5 works. I’m not sure if they worked before as I had nothing connected before. I’m currently trying it out with the blink sketch (changing ledPin to 7, 6 and 5) so I’d be very surprised if it was a problem with the sketch. I also have nothing else connected or touchubg the board at the moment. Mind you, this time pin 6 and 7 are not dimmed, they just don’t work at all.
Is there something special about pin 6 and 7 that I’m missing out on ? I don’t mind connecting to say pin 5 and 4 but it seams I’m getting reliability issues here.
After some pocking around with the multimeter, turns out when either pin 6 or 7 is on, both out .7v and when they are off they still output .2v, contrarily to the stable 0 of the other pins.