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+* Itead Product Page: http://sonoff.itead.cc/en/products/residential/sonoff-t1
+* Itead Shop: https://www.itead.cc/sonoff-t1.html
+* Itead Wiki: (na)
+
+Sonoff-T1 seems to be an evolution of Sonoff-Touch, and exists in one, two or three button variations and contains a 433MHz radio.
+
+Sonoff Touch is also based on the ESP8285, But are using a Silabs EFM8BB1 microcontroller to extend the number of IO:s needed to control 3 buttons, with separate relays and leds together with the radio.
+
+[EFM8BB1 Data Sheet](https://www.silabs.com/documents/public/data-sheets/efm8bb1-datasheet.pdf)