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1 vote
1 answer
389 views

Electronic Temperature Control Sound Light Alarm DIY Kit - how does it work

I bought a DIY Kit off ebay (the board says www.icstation.com ICSK061A), and lo an behold, it does not work. I could not figure out what the trouble was, so i simulated it in LTSpice, but i got no ...
loonquawl's user avatar
  • 220
1 vote
3 answers
5k views

Modifying a digital LED thermometer kit to drive larger 4" 7-segment LEDs?

I'm interested in building an LED digital thermometer with 3 or 4 large 4"/100mm 7-segment LED display digits (for example, Kingbright SA40-19EWA). There are plenty of kits available which come with ...
timday's user avatar
  • 133