Lorawan stack with low powermode not fully working with STM32 mcu

Hi Noël,

Thanks for your comments on RIOT and on my online course on GitHub.

Regarding low power with loramac on the murata chip, you can have a look at [1] and [2]. The first pr improves the lorawan example application with context persistence on EEPROM, thus allowing OTAA with STOP power mode. Note tha low power modes are enabled by default.

The second pr is meant to improve power consumption on STMs.

Let us know how much power consumption you can reach with them.



[1] https://github.com/RIOT-OS/RIOT/pull/11237 [2] https://github.com/RIOT-OS/RIOT/pull/11542

Thanks for the provided links !

I will try the custom pin modes on spi to minimize power consumption and see if the power consumption is improved.

Any clues for the i2c gpio configuration to disable pull up before entering STOP mode ?

If there is no easy solution I will remove my external pull up resistors and see if the is some improvements.



‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐