How to power an esp32 by button battery

marcello.colombo
Posts: 2
Joined: Tue Dec 04, 2018 11:44 am

How to power an esp32 by button battery

Postby marcello.colombo » Tue Dec 04, 2018 12:00 pm

Hi to all, is possible to power an esp32 with a bottom battery? If yes... how can i do it... are there any tutorial to do it?... The esp will use 4 force sensore like... thank's

ESP_Sprite
Posts: 8926
Joined: Thu Nov 26, 2015 4:08 am

Re: How to power an esp32 by button battery

Postby ESP_Sprite » Wed Dec 05, 2018 2:55 am

Not in any useful way. The ESP32 uses a fair bit of power (max 500mA with WiFi on) and yer olde standard button cell has a too high internal resistance to provide that; the ESP32 will brown out before ESP-IDF is fully started. Suggest you look into using small LiIon cells or primaries instead.

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