I’ve searched a lot for the most efficient lora boards that consume let’s say below 100µA in deep sleep and also read carefull through this topic:
However, when I have tried the TTGO or Heltec boards, I’ve had deep sleep currents of 12mA or 2mA respectively.
Here are the two boards that I have tried:
TTGO LoRa v1.0 an v2.1 with ESP32
Heltec with ESP32:
This one seems super interesting to me:
3. Heltec cubecell with arm processor:
So probably it has all been discussed but the big ESP32 & SX127X topic doesn’t give makers a clear advise on what are really the best boards to use atm.
So I hope this thread will still be useful.