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Shelly Universal Input/Output Module (UNI)
Shelly Universal Input/Output

Available from:
Amazon.de
Domadoo.fr
Aliexpress.com
Mediarath.de
Idealo.de

Manufacturer:
Shelly.cloud

Install method:
MgOS to Tasmota

GPIO #Component
GPIO00 Led_i 1
GPIO01 None
GPIO02 None
GPIO03 None
GPIO04 Relay 2
GPIO05 AM2301
GPIO09 None
GPIO10 None
GPIO12 Switch_n 1
GPIO13 Switch_n 2
GPIO14 Switch_n 3
GPIO15 Relay 1
GPIO16 None
GPIO17 ADC Range 1
Configuration
{"NAME":"Shelly Uni","GPIO":[320,0,0,0,225,1216,0,0,192,193,194,224,0,4864],"FLAG":0,"BASE":18}
Use code BLAKADDER10 when buying from mediarath.de Tasmota category for a 10% discount. Code is valid until end of 2022.

Serial Connection

Shelly UNI comes with a partially exposed programming/debug header which can be used to flash Tasmota on the device. A serial-to-USB adapter is needed as well as a reliable 3.3 V source with at least 350 mA drive capability. The following diagram shows the device pinout. Shelly UNI Programing Header

Flash Mode

To be able to flash the Tasmota firmware you need to get into flash mode. Therefore connect a wire from GPIO0 to ground. For further information have a look at Hardware Preparation.