Hello, i got my Atlas ESR Plus (ESR70) - Capacitor Analyser. It has a integrated voltage discharger but that's for low voltages.
It's always safe to discharge caps before you use any measuring, or touch them !
So I decided to make one using arduino nano, some lcd with bargraph etc. Simple wire with 470ohm resistor does not cut it.
If you wonder why 470ohm, then see this video:
To save space I should use the D2PAK resitors? as I want as small form factor as possible as I try to squeeze this into something like typical SMD tweezers. http://www.burntec.com/image/cache/...rt_smd_tester_tweezer_style_meter-500x500.jpg
Obviously this should work any way you connect it without checking polarity! So simple voltage divider calculated to make 5V at 1000V input will not work I think.
It's always safe to discharge caps before you use any measuring, or touch them !
So I decided to make one using arduino nano, some lcd with bargraph etc. Simple wire with 470ohm resistor does not cut it.
If you wonder why 470ohm, then see this video:
To save space I should use the D2PAK resitors? as I want as small form factor as possible as I try to squeeze this into something like typical SMD tweezers. http://www.burntec.com/image/cache/...rt_smd_tester_tweezer_style_meter-500x500.jpg
Obviously this should work any way you connect it without checking polarity! So simple voltage divider calculated to make 5V at 1000V input will not work I think.
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