MATEK MATEKSYS EXPRESSLRS 2.4GHZ TRUE DIVERSITY RECEIVER R24-TD 2.4GHz ISM 20dbm (100mW) CRSF

Specifications

• 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

• Packing:

  • 1x ELRS-R24-TD

  • 2x IPEX MHF1 Antennas. 15cm

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.

Firmwares

• ExpressLRS,  wiki, Click HERE

• Receiver Target:  Generic targets used as a base 2.4 GHz > > Generic ESP32 True Diversity PA 2.4Ghz RX

• 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.

Tips

• Full Resolution Switch Configuration Modes

• Powering receiver with Reverse Voltage will damage the regulator chip. DOUBLE CHECK the power wires connected to the receiver.

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. Configurator 1.6.x or newer,  Select the target Generic targets used as a base 2.4 GHz  –> Generic ESP32 True Diversity PA 2.4Ghz RX  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/