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how to make PCB Thermometer...View Instructable »
thank for your comment, yes i think if i used optoisolator more cheap if i buy Shiled Relay :) ..
i like to be in Tech and workshop
DIY 1,5 V to light up 15 LEDView Instructable »
i used software PCB wizard
DIY 4 channel IR remote con...
DIY simple sheild Output L...
Thank you for your comment
heheh.. because i have 2000 pcs led, .... :) than i use led for this project :)
thank... for your Comment, i have 2000 LED, then i made it :)
Make PCB Arduino Componen t...
DIY Cassing Digital Clock d...
Made Clock Matrix With 192 LEDView Instructable »
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