Badcaps Forums - View Single Post - New tool to find short capacitors on motherboards : shorty with display

kripton2035 · 02-15-2021, 12:33 AM

the microcontroller is an arduino nano
the ADC is an mcp3421 in 16 bits mode, the 18bits being too slow at 3 samples/sec

I first used the avr adc (at 10 bits) and it was enough with the shorty initial amplification (x200)
then I tried the 18b adc and lowered the amplification for better range to 27x
the video use the 18b adc in 16b mode (and no pga gain)
it can read 0.1mΩ to around 2.5Ω

02-15-2021, 12:33 AM	#5
kripton2035 Member Join Date: Mar 2014 City & State: Europe (France) My Country: France Line Voltage: 230VAC 50Hz I'm a: Hobbyist Tech Posts: 31	Re: New tool to find short capacitors on motherboards : shorty with display the microcontroller is an arduino nano the ADC is an mcp3421 in 16 bits mode, the 18bits being too slow at 3 samples/sec I first used the avr adc (at 10 bits) and it was enough with the shorty initial amplification (x200) then I tried the 18b adc and lowered the amplification for better range to 27x the video use the 18b adc in 16b mode (and no pga gain) it can read 0.1mΩ to around 2.5Ω Last edited by kripton2035; 02-15-2021 at 12:39 AM..