ESP32 current consumption and powering from coin cell

dalohar
Posts: 24
Joined: Tue Jul 28, 2020 6:42 am

ESP32 current consumption and powering from coin cell

Postby dalohar » Wed Jul 27, 2022 10:41 am

Hi,

I wish to understand whether I can use any one of ESP32 series modules with battery, considering Light Sleep (130uA) and Deep Sleep (5uA) current consumption. Here I am considering battery of type CR2450 type.

Here please note that I do not want to use Wi-Fi at-all.

Also I have heard that ESP requires more power at start-up so one can not power it from coin cell.

Please guide.

Regards,

Dinesh

ESP_Sprite
Posts: 9052
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32 current consumption and powering from coin cell

Postby ESP_Sprite » Thu Jul 28, 2022 12:55 am

Power use as detailed in the datasheet is mostly determined by WiFi currents, and we figured out you need something that can deliver 500-600mA of power to start the ESP32 correctly. Unfortunately, we don't know the power requirements if you don't start WiFi (or BT), so you'd be on your own there.

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