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Crazy things happen with programmer

be80be

Well-Known Member
TSR 1-2450 crazy thing happened im programing my microcontroller I have 12 volt supply using the tsr 1-2450 to drop voltage to 5 for micro. So i unhook the 12 volt from the mains and hook up laptop to program micro .
Figure this be safe but the micro feeds 5 volt I guess out the sys vdd pin and feed the regulator thru the output and lights up 300 leds
after programming was done. plug the mains back in and it all works like planed for about a hour then the leds stop working there ws2815b leds. so I do some testing and the Di is gettin 4.5 volts but its stuck high so it not sending data.

Next the micro still shows up and programs just GP0 is not good crazy huh.
 

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