RFY / Somfy RTS
RFY is the RFXCOM naming for Somfy RTS-style blinds and shutter control using rolling codes.
Read more →Knowledge base
RFXCOM knowledge base
Technical explanations about 433 MHz, 868 MHz, MQTT, Home Assistant, rolling codes, protocols and practical RFXCOM integrations.
MQTT
MQTT is a lightweight messaging protocol that lets the RFX-433EMC and RFX-868 communicate reliably with Home Assistant.
Read more →MQTT Auto Discovery
With Auto Discovery, supported sensors, switches and motors automatically appear in Home Assistant when the RFX receives them.
Read more →Rolling code
Rolling codes prevent captured RF commands from simply being replayed. That is why motors such as Somfy RTS must be paired as an additional remote.
Read more →433 MHz vs 868 MHz
433 MHz is widely used for older switches, sensors, weather stations and blinds. 868 MHz is often used for specific ventilation, security and sensor applications.
Read more →Protocolselectie
Enable only the protocols you need to keep reception cleaner and avoid unnecessary or misinterpreted messages.
Read more →Unieke Hostname
The RFX hostname is also used as the MQTT client name. Use a unique, short name without special characters for each device.
Read more →WiFi of LAN
WiFi is convenient for flexible placement. W5500 LAN is recommended when stability and a fixed network connection matter most.
Read more →RFX-433EMC vs RFXtrx433
The RFX-433EMC is the modern 433 MHz generation with USB, WiFi, optional LAN and MQTT. Older RFXtrx models still work but are End Of Support.
Read more →Somfy IO
Somfy IO is a different, closed 868 MHz system and is not supported by RFXCOM. Somfy RTS at 433.42 MHz is supported.
Read more →Bi-directionele motoren
Brel, Dooya, Motionblinds and similar DD27xx motors can be controlled through MQTT and can often return status information.
Read more →Home Assistant Green
The RFX-433EMC works well with Home Assistant Green: connect it through USB or MQTT and add 433 MHz devices to your dashboard.
Read more →Antenne en bereik
Range depends on placement, walls, interference and antenna. An external 433 MHz magnetic base antenna can significantly improve reception.
Read more →Firmware updaten
For the current RFX generation, use the correct software ZIP and flash the files through the ESP web flasher. Always use files from the same folder.
Read more →Node-RED
Through MQTT, RFXCOM can be combined easily with Node-RED. RF events become flow triggers and commands can be sent back to the RFX.
Read more →Oude 433 MHz apparaten
Many existing 433 MHz devices do not need to be replaced. With RFXCOM they become usable in modern systems such as Home Assistant.
Read more →