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Mateksys ExpressLRS 2.4G True Diversity Receiver

Unlock unparalleled connectivity with the Mateksys ExpressLRS 2.4G True Diversity Receiver—lightweight, powerful, and engineered for seamless performance in any environment.


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  • ESP32-PICO-D4, SX1281, ExpressLRS Firmware
  • PA/LNA: AT2401C
  • RF Frequency: 2.4GHz ISM
  • Telemetry power: 20dbm (100mW)
  • True Diversity
  • Receiver protocol: CRSF
  • Antenna connector: IPEX MHF-1
  • Power supply: 4-13V DC @ “V” Pad
  • Power dissipation:  100mA~170mA@5V IN
  • PCB size: 28mm x 16mm
  • Weight: 4g w/ antenna

RGB LED Status:

  • [Rainbow fade effect], Starting Up
  • [Green heartbeat], Web update mode enabled
  • [Slow blink 500ms on/off ], Waiting for connection from transmitter
  • [Red flashing 100ms on/off], Radio chip not detected
  • [Orange Double blink then pause], Binding mode enabled
  • [Orange Triple blink then pause], Connected to transmitter but mismatched model-match configuration
  • [Solid single color Connected to a transmitter], color indicates packet rate
  • in Boot mode, RGB LED doesn’t light up.


  • ExpressLRS,  wiki, Click HERE
  • Receiver Target:  Generic ESP32 True Diversity PA 2.4Ghz RX /or RadioMaster RP4-TD /or HappyModel EP Dual
  • Any of variants based on Target “Generic ESP32 True Diversity PA 2.4Ghz RX” can be flashed.
  • Receiver has ExpressLRS 3.3.2 preloaded with binding phrase “123456”,  the Receiver will never enter binding mode if using the traditional binding procedure.
  • You need to reflash it with your binding phrase OR connect it to your PC/phone via WiFi and set your binding phrase in WebUI.


Flashing via Wifi:

  • Power on receiver. RGB LED Rainbow fade effect at first, then Slow blink 500ms on/off.  after 20s,  Green blink indicating it’s on Wifi Hotspot Mode.
  • Wifi SSID “ExpressLRS RX”,  Password “expresslrs”
  • More detailed steps,  pls refer this page.

Flashing via UART:

  1. Wire the receiver into the USB-TTL adapter, with TX on receiver connected to the Rx on the USB-TTL, and RX on receiver connected to the Tx of the USB-TTL. Wire 5V and GND of the USB-TTL to 5V and GND of the Receiver.
  2. Press the boot button while powering on the receiver, then release – the RGB LED will not turn on.
  3. In Configurator,  Select the target Generic ESP32 True Diversity PA 2.4Ghz RX, or RadioMaster RP4-TD, or HappyModel EP Dual  and  “UART” for Flashing Method,  set your bind phrase and Firmware Options , Check “erase before flash” and “Force FLash “.
  4. Web-flasher  https://expresslrs.github.io/web-flasher/

Package includes:

  • 1 x ELRS-R24-TD
  • 2 x IPEX MHF1 Antennas. 15cm

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