Looking for ultra low-power ATtiny85 replacement for simple reset task
Post:
Hi everyone,
I’m currently using an ATtiny85 to periodically trigger a reset on a board, but I’m trying to optimize power consumption as much as possible.
The ATtiny85 works fine, but even when optimized it’s not ideal for ultra low-power scenarios (especially considering active current can reach around 1 mA at low frequency and more at higher clocks ).
What I need is very simple:
periodically wake up (every few minutes)
trigger a GPIO pulse (reset)
go back to sleep
So I’m looking for a replacement that:
consumes significantly less than ~16 mA (preferably in the µA range overall)
has very low sleep current
can run standalone (no external components ideally)
small form factor like ATtiny85
I’ve seen newer tinyAVR 0/1-series (like ATtiny1616) which seem more efficient and modern , but I’m open to anything (even non-AVR solutions).
Do you have any recommendations for ultra low-power MCUs or alternative approaches for this kind of “watchdog reset” use case?
Tanks
u/AssumptionPlus9244
Hi everyone,
I’m currently using an ATtiny85 to periodically trigger a reset on a board, but I’m trying to optimize power consumption as much as possible.
The ATtiny85 works fine, but even when optimized it’s not ideal for ultra low-power scenarios (especially considering active current can reach around 1 mA at low frequency and more at higher clocks ).
What I need is very simple:
periodically wake up (every few minutes)
trigger a GPIO pulse (reset)
go back to sleep
So I’m looking for a replacement that:
consumes significantly less than ~16 mA (preferably in the µA range overall)
has very low sleep current
can run standalone (no external components ideally)
small form factor like ATtiny85
I’ve seen newer tinyAVR 0/1-series (like ATtiny1616) which seem more efficient and modern , but I’m open to anything (even non-AVR solutions).
Do you have any recommendations for ultra low-power MCUs or alternative approaches for this kind of “watchdog reset” use case?
Tanks