Going through some documents and surfing around the internet, I still don't know how to implement modem sleep (i.e. keeping wifi connect with minimal power). The official document (https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/system/power_management.html) did not cover in deta...

Dear All, I've been doing some tests using 1000mA battery 1) Full Wake Up -- No sleep, power up, connect to wifi, search services, send data and wait around 10 seconds send data again until battery drain up. Around 4400 packets could be sent out. 2) Deep Sleep I -- power up, connect to wifi, search ...