Battery Life and Sleep Mode
Posted by Taylor Bernard on July 10, 2013
saw this. 1200mAh is a GOOD amount of battery. for example a 3.7v coin cell battery is sub 200mAh.
going to have to figure out something on a larger and easily replaceable battery for this.
"A minimal Atmega328 processor (no LEDs, no voltage regulator, no USB chip) used 17 mA while "doing something" (looping) and only 0.131 mA while in power-down mode. If you change the clock speed to 8 MHz the power-up state drops to 13.8 mA, whilst the sleep mode is the same.
If you powered it off a 1200 mA/H battery, by my calculations it could run for 381 days in sleep mode. So if you only want it to occasionally "do something" (like a TV remote, most of its time is spent not having buttons pushed) then it could last over a year on a set of batteries. If that was your design goal."
going to have to figure out something on a larger and easily replaceable battery for this.
"A minimal Atmega328 processor (no LEDs, no voltage regulator, no USB chip) used 17 mA while "doing something" (looping) and only 0.131 mA while in power-down mode. If you change the clock speed to 8 MHz the power-up state drops to 13.8 mA, whilst the sleep mode is the same.
If you powered it off a 1200 mA/H battery, by my calculations it could run for 381 days in sleep mode. So if you only want it to occasionally "do something" (like a TV remote, most of its time is spent not having buttons pushed) then it could last over a year on a set of batteries. If that was your design goal."
Comments
Taylor Bernard on July 10, 2013:
Justin Bernard on July 10, 2013: