16F84A strange problem
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@k323r any INPUT should be grounded - if you have noisy power, ground via 100 Ohm resistor. Don't ground unused outputs or you'll fry your PIC! :)
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any pin not used should be at 0v wired to ground.
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Hello, i had your problem in a similar proyect, but it wont work, the problem is the power supply, is a common universal regulator, IM WRONG?
connect a condenser in the positive and negative wires and GOOD LUCK
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I had a similar problem and it turned out I hadn't grounded something.
Once I found it and ground it correctly everything ran fine.
Your body is acting like a ground when you get into close proximity of the chip.
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Problem was there was no MCLR pin. I know it seems like a grounding problem, but it apparently was not!
guysoft42 2 years ago