Sonoff RF Bridge 433 - pauloromeira/Sonoff-Tasmota GitHub Wiki

• Itead Product Page: http://sonoff.itead.cc/en/products/appliances/sonoff-rf-bridge-433
• Itead Shop: https://www.itead.cc/sonoff-rf-bridge-433.html
• Itead Wiki: https://www.itead.cc/wiki/Sonoff_RF_Bridge_433
• Flash Guide: How to Flash the RF Bridge
• RF Bridge 433 R2 Information: https://github.com/arendst/Sonoff-Tasmota/issues/1916

Serial Connection

Please see the Hardware Preparation page for general instructions.

As always, you need to access the serial interface. The four serial pins (3V3, Rx, Tx, GND) connected to the ESP8285 are available on the 5-pin header just next to the switch as can be seen in the image to the right.

Move the switch towards the 5-pin header, keep the button on the edge pressed and connect the serial programmer.

After programming make sure to move the switch away from the 5-pin header to restore connection to the RF microcontroller.

Operation

During normal operation the serial interface is used at 19200 baud to communicate with the RF microcontroller. It is therefore wise to disable serial logging (seriallog 0).

The bridge is able to learn up to 16 different remote control commands of fixed code 433 MHz frequency as provided by PT2260, PT2262, PT2264 and EV1527 Transmitters. I was not able to recognize the latest Klik Aan Klik Uit (KaKu) remote control signals but some people managed to use the fixed code KaKu devices like PAR-1000 receiver and PAT-103 transmitter.

Tasmota provides default remote control commands to all 16 keys so you can start using the bridge with a Sonoff 4CH Pro or Sonoff RF device without having the bridge to learn remote control commands.

See Supported Commands for available specific Sonoff RF Bridge 433 commands.