ESR meter upgrades - Page 57

**stj** · 02-14-2023, 10:42 AM

what cpu is in it?

jellytot · 02-15-2023, 12:18 PM

Atmega 644p

**stj** · 02-15-2023, 02:27 PM

good - because the replacement software wont fit a 324

this is actually built for a 1284 but it should work i think
it expects a 20Mhz crystal
changed config files are included for viewing

**stj** · 02-15-2023, 02:33 PM

i forgot to say,
you need to reprogram the 8 pin microcontroller that controls power, or replace it with a small circuit

jellytot · 02-15-2023, 03:55 PM

Thank's Stj

have you found this better than the original.

**stj** · 02-15-2023, 04:19 PM

yes,
lots of new features.
but the biggest thing was the circuit for power.
the original 8pin microcontroller seemed to not go into sleep-mode sometimes and was draining the battery

02-14-2023, 10:42 AM	#1121
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 28,411	Re: ESR meter upgrades what cpu is in it?

02-15-2023, 12:18 PM	#1122
jellytot Member Join Date: Mar 2015 City & State: Galway My Country: Ireland I'm a: Knowledge Seeker Posts: 41	Re: ESR meter upgrades Atmega 644p

02-15-2023, 03:55 PM	#1125
jellytot Member Join Date: Mar 2015 City & State: Galway My Country: Ireland I'm a: Knowledge Seeker Posts: 41	Re: ESR meter upgrades Thank's Stj have you found this better than the original.

02-15-2023, 04:19 PM	#1126
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 28,411	Re: ESR meter upgrades yes, lots of new features. but the biggest thing was the circuit for power. the original 8pin microcontroller seemed to not go into sleep-mode sometimes and was draining the battery