Esp Now sleep mode.

jrubic
Posts: 4
Joined: Mon Mar 09, 2020 10:09 am

Esp Now sleep mode.

Postby jrubic » Tue Jun 30, 2020 2:45 pm

I'm developing a system based on Esp_Now and Lora with which I send orders to carry out remote processes, that is, I need to keep them on alert but in a sleep state because else, the battery runs out in a short time. The problem is that I don't know how to wake them up when an external message arrives. The system works fine without sleep mode. Can somebody help me?
I'm grateful in advance.

Jorge.

ESP_Sprite
Posts: 4123
Joined: Thu Nov 26, 2015 4:08 am

Re: Esp Now sleep mode.

Postby ESP_Sprite » Wed Jul 01, 2020 12:43 pm

With ESP-Now? I don't think there is a way to keep the radio online while using deep sleep; if any, that would use a fair amount of power even if possible. The 'canonical' way to solve that is by telling the other side 'I'm going to sleep for a minute, please buffer any messages you'd want to send to me', and the other side batch sending all buffered messages after that. (Similar to DTIM in WiFi)

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