BETAFPV ELRS Micro TX Module 2.4GHz 1W

Out of stock

ExpressLRS ELRS Micro TX 2.4GHz 1W transmission module from BETAFPV with OLED display, 5D joystick and additional Backpack function, designed for rc model transmitters equipped with a micro module slot

The BETAFPV Micro RF TX module is based on ExpressLRS, an open-source RC (Remote Control) link for the remote operation of rc models. ExpressLRS aims to achieve the best possible performance in terms of transmission rate, latency, and range. This makes ExpressLRS one of the best available RC links, offering the highest speed and data transmission distance in the market! A transmission rate of up to 1000Hz and tens of kilometers range are possible with this module!

The black version with a maximum transmission power of 1W is now available. It fully supports the 5D joystick, OLED display and comes with the new Backpack function that other modules do not have!

Backpack Function

For the Backpack functionality, there is a second wireless communication chip, ESP8285, inside the module, which allows the rc transmitter to communicate wirelessly with other devices using the ESPNow protocol. This enables communication between the ExpressLRS module and other FPV devices for command and control or adjusting settings.
(More information can be found here:

Note: Ensure that your VRX (Video Receiver) supports the Backpack feature before using the module's Backpack functionality."

OLED Display & 5D Joystick

This particular module can be configured through the rc transmitter menu using an OpenTX/EdgeTX LUA script if it supports OpenTX/EdgeTX software. However, because it features an OLED display and a 5D joystick, it can also be used with rc transmitters that support the CRSF protocol but do not support OpenTX/EdgeTX.

The following rc transmitters that do not use OpenTX/EdgeTX work well with this module: Futaba T16IZ, T16SZ, and T18SZ (with firmware updated to version 3.9e), Wsky ET16, Radiolink AT9S Pro.

Cooling Fan & Heat Sink

Compared to the 500mW version, in addition to the cooling fan, it now also includes an aluminum heat sink, further enhancing the cooling performance.

DIP Switches

This module features DIP switches on the back for selecting various functions:


1-2 DIP switches

3-4 DIP switches

5-6-7 DIP switches

Update Firmware




Operating Mode




Update Backpack






  • Input Voltage (at XT30 power connector): 5V - 12V (2S battery recommended (max 8.4V), does not support 3S or higher)
  • System: ExpressLRS (ELRS)
  • Processors: 2x ESP8285
  • RF Module: SX1280 + PA, LORA based
  • Operating Frequency: 2.4GHz ISM
  • Transmit Power: 25mW, 50mW, 100mW, 250mW, 500mW, 1000mW (1W)
  • Transmission Rate: 50Hz, 100Hz, 150Hz, 250Hz, 333Hz, 500Hz, 1000Hz
  • Communication Protocol: CRSF (Crossfire)
  • Backpack Function: Supported (features a second ESP8285 processor)
  • Cooling: Fan and aluminum heat sink (The fan operates from 250W and above)
  • USB Port: Type C

Product Contents

  • 1x BETAFPV ELRS Micro TX 2.4GHz 1W module (black)
  • 1x BETAFPV Moxon Antenna
  • 1x Omnidirectional Antenna
  • 1x Micro TX module user manual
  • 1x USB data cable (Type-A to Type-C)
  • 1x Connector adapter cable (for some remotes)


  • Always connect the antenna before powering the module. If you don't connect the antenna, the transmission amplifier will burn!
  • Use an external power source at the XT30 connector with lithium batteries up to 2S (maximum voltage 8.4V). Batteries of 3S or higher voltage than 12V will damage the circuit!
  • Do not turn all DIP switches ON simultaneously. Select the position of the DIP switches based on the above table.
  • It is advisable to update the module software to the current version of ExpressLRS before use

Note: It can be used with the receivers presented at the bottom of the page

More Information

More Information
ModelMicro TX 2.4GHz 1W
Design & Development: - Copyright © 2023 - 2024