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Author Topic: Tiny logic probe  (Read 477 times)
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Ljmnunes
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« on: March 13, 2021, 12:01:33 00:01 »

Hello guys!

I read here people talking about Logic Probe.

So, I remembered that I built a very simple logical probe when I learned about digital electronics in the 1980s.

I challenged myself to make a logic probe that doesn't light up when the tip is floating and make it as small as possible. Yes, I'm a fan of miniaturization...

So, I bring it to you as it is. I redesigned it from memory because I lost the original and it schematic, so without guarantees, I haven't tested it, but you can easily modify it. If you make any changes, please forward them.

Later, I added a led to indicate pulses. This scheme does not have this function. I can't remember the circuit. I'll update it if I remember.

It is draw in Kicad and pdf too.

Enjoy.
« Last Edit: March 13, 2021, 04:17:04 16:17 by Ljmnunes » Logged

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