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power consumption with new microcontroller.

A project log for Loko-the Tiniest GPS tracker with 270 days battery

Loko is the 12 gram GPS tracker with extreme battery life.

akio-satoAkio Sato 09/09/2022 at 13:530 Comments

after stm32L072 went to silicon shortage , I changed the pcb design, now used only E5 module as main MCU and Radio module . For this I developed native firmware for stm32WL chip . 

so far I achieved  sleeping current consumption 18uA, working current consumption 36mA. 

I used nordic power profile kit 2 to measure the consumption precisely.

finishing the hardware and software tests, moving to field tests. Loko coming very soon.

https://www.nolilab.com

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