Working on a simple LoRA sensor which is powered by a lithium capacitor, I am wondering whether to rely on the internal SMPS or an external buck IC for stepping down voltage to improve efficiency.My measurements of the internal SMPS indicate a effici...

I have a CubeWL-based, CubeMX-generated LoRaWAN application (868Mhz region) on Helium (LNS tells me RX1 delay is 1s).OTAA join and confirmed msg downlink reception seemed very unreliable, even with a gateway just in the other room (OTAA ± 5 tries, up...

In order to mute the COMP for some time, I deactivated the interrupt with HAL_NVIC_DisableInterrupt(COMP_IRQn) and re-activated after a certain time respectively.In between I am in STOP2, some uA normal consumption.Now, while the interrupt is disable...

I want to generate a constant, steady voltage as COMP INPM in STOP1 with the DAC (using HAL libs at the moment).Unfortunately I cannot get a steady signal. The voltage drifts around some seconds, stabilises and starts from the beginning (oddly seems ...