Copyright, RFXCOM 2022
RFXtrxWifi/USB User Guide Rev. 0.2
page 3 / 10
1. Introduction
The RFXtrxWifi can have the RFM69 433/868MHz) or RFM95 (868MHz) transceiver installed by the
user. See the chapter “Install the transceiver” below.
An ESP32 is used for the Wifi TCP/IP connection. Open-source firmware is available.
A microcontroller is used for the RFXtrx firmware. The interface over USB and TCP/IP is the same as
the USB RFXtrx versions.
TCP/IP access is using port 10001
Important: The USB connection of the RFXtrxWifi is only used to flash the ESP32.
A 500mA USB connection can be used to power the RFXtrxWifi or a 5V DC 1A power supply can be
used.
The RFXtrxWifi can have 2 applications connected at the same time, for example Domoticz and
RFXmngr or Homeseer and Home Assistant.
2. Contents of the kit.
1 RFXtrxWifi PCB or RFXtrxUSB PCB
1 RFX69 with PTF (push-to-fit) connectors
1 enclosure
4 screws
1 USB Cable
For the RFXtrxWifi: 1 power supply DC
5V 1A
3. USB drivers
The CP2102N USB-serial chip is used. The drivers are available at:
https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads
