Indicator AA -AAA cells

@kilosek

7 years ago

https://everycircuit.com/circuit/5687718848495616

Analog indicator with 4 opamp. Source on orange wire is battery. Leds: ≥0,8V ; 0,8V - 1V ; 1V - 1,3V ; 1,3V - 1,5V ; ≤1,5V.