Hi everyone,
I’m working on a personal project that involves periodic environmental sensing (temperature, humidity, possibly air quality) and logging data to external storage. The goal is to run the device on battery for as long as possible, ideally several months.
I'm interested in STM32 MCUs, but I’m still unsure which series would give me the best balance between ultra-low power consumption, decent performance, and peripheral flexibility. I’ve heard that the STM32L series is optimized for low power—does anyone have experience with these in long-term, battery-powered deployments?
Also, any insights on using Stop/Sleep modes effectively or best practices for minimizing current draw during idle time would be really helpful. I plan to use either SPI or I2C for the sensor interfaces, and possibly an SD card for storage.
Would love to hear what’s worked well for you or if there are any development boards/kits you'd recommend for rapid prototyping in this kind of use case.
Thanks in advance!
