Arduino Forum

Using Arduino => Microcontrollers => Topic started by: Zackypoo on Sep 23, 2020, 02:50 pm

Title: Attiny and cr2032 battery power
Post by: Zackypoo on Sep 23, 2020, 02:50 pm
Hello guys. How long can attiny85 last on a cr2032 3.3v battery with no sleep mode, no low power mode, or any other components attached, and the chip is just directly connected to the battery. A straight 3.3 volts directly to the chip.
Title: Re: Attiny and cr2032 battery power
Post by: jremington on Sep 23, 2020, 06:23 pm
A rough estimate of the operating hours = (battery capacity in mAh)/(average circuit current draw in mA)