Shelly Plus 1 Switch Module (SPL1)
Shelly Plus 1

Available from:


Install method:
USB to Serial

GPIO #Component
GPIO00 None
GPIO01 None
GPIO02 None
GPIO03 None
GPIO04 Switch_n 1
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 None
GPIO13 None
GPIO14 None
GPIO15 None
GPIO16 None
GPIO17 None
GPIO18 None
GPIO19 None
GPIO20 None
GPIO21 None
GPIO22 None
GPIO23 None
GPIO24 None
GPIO25 None
GPIO26 Relay 1
GPIO27 None
GPIO6 None
GPIO7 None
GPIO8 None
GPIO11 None
GPIO32 None
GPIO33 None
GPIO34 None
GPIO35 None
GPIO36 None
GPIO37 None
GPIO38 None
GPIO39 None
Configuration for ESP32
{"NAME":"Shelly Plus 1 ","GPIO":[0,0,0,0,192,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,224,0,0,0,0,0,0,0,0,0,0,0,0,0],"FLAG":0,"BASE":1}
Flash only with ESP32-SOLO1 tasmota32solo1... binaries.


After flashing Tasmota, open the web UI of the device and navigate to Configuration -> Auto-configuration. Select your device from the drop-down and click Apply Configuration.
The device will restart and will be automagically configured.

Use Tasmota v9.5.0.9+. Older versions do not work.

Pin-Layout is on the image, credit goes to Kalin Dimitrov!

Note [and I am not sure how to update template for this] but I have worked out a few more GPIOs…

  • LED output is on GPIO 0
  • Small button on the back is input on GPIO 25 (needs pull up enabled)