Author Topic: $50 LED  (Read 1063 times)

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Offline icoms8Topic starter

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$50 LED
« on: June 27, 2009, 04:07:20 PM »
 when i try to put in the chip to the i/o socket the LED lights up like it is working. but when i try to program it, it says devices is missing. whats wrong?

Offline SmAsH

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Re: $50 LED
« Reply #1 on: June 27, 2009, 04:12:17 PM »
you may have a short somewhere. maybe go through your board and check, especially near the led pin.
Howdy

Offline icoms8Topic starter

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Re: $50 LED
« Reply #2 on: June 27, 2009, 04:36:38 PM »
im look at it and i think that because i used the 4.8 battery method. when i put on the 9v battery i put the + wire on the + 5v regulater and then i got rid of the capciter lead going to the regulater. could that be it?

Offline SmAsH

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Re: $50 LED
« Reply #3 on: June 27, 2009, 04:40:45 PM »
it should have battery + going to regulator pin 1, then battery - going to pin 2 and pin 3 going to the mcu +v...
also have the middle pin of regulator to common gnd. thats the minimum you need. then you can add power bus...
Howdy

 


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