Hey I just constructed a circuit where I solder a 28 pins socket and one 16MHz crystal for the circuit. I put a pull up resistor at the pin 1 too. Weird things happen is that my program sometimes work sometimes not working. Sometimes it loop for once .. Any problem ? Is it because I did not insert 2…

DIY Arduino problem

Vincent19 August 15, 2012, 6:18pm 3

why is it needed ?

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