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ESP-M3 Module
ESP-M3

Available from:
Aliexpress.com
Amazon.com
Amazon.de
Banggood.com

Manufacturer:
Github.com

Flashed with:
Serial port

GPIO #Component
GPIO00 User
GPIO01 User
GPIO02 User
GPIO03 User
GPIO04 User
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 None
GPIO13 User
GPIO14 User
GPIO15 None
GPIO16 User
GPIO17 None
Template for Tasmota v9.1+
{"NAME":"ESP-M3","GPIO":[1,1,1,1,1,0,0,0,0,1,1,0,1,0],"FLAG":0,"BASE":18}

Onboard blue LED is connected to GPIO2.

Pinout