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Registered Member #63
Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
Dr. Srozzu wrote ...
Cool Matt, your stuff always looks so pro. Btw, where've you been the last two years? I've only seen you here intermittently with just a few new projects.
Registered Member #63
Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
The drift is pretty bad, about 0.5%, assuming my signal generator is stable. I'll increase the cathode resistors on the seven-segment displays so they draw a little less current; that way the drivers won't go through such a thermal gradient every time you warm it up.
Registered Member #510
Joined: Sat Feb 10 2007, 09:28AM
Location: Hannover
Posts: 12
I have a old east German Counter thats built in complete standard logic, let's see if i can dig a manual. It's quite nice because they implemented quite a few functions, like RPM measurement and stuff like that.
It's in german but the schematics should be understandable, if someone wants a list of the translated parts (they used the soviet chipnames of course) let me know
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Frequency counting without a microcontroller
