Matek ELRS 2.4GHz True Diversity Receiver

A true Diveristy ELRS 2.4GHz Rx from Matek.

Features:

• A low noise amplifer (LNA) that boosts the antenna's received signal before it hits the actual receiver chip
• A power amplifier (PA) that boosts the telemetry output for dramatically increased range on the telemetry back to your radio
• True diversity for the best reception and transmission while flying in different orientations

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

Firmwares:

• Receiver Target (all target options below will work):
  • Generic ESP32 True Diversity PA 2.4Ghz RX
  • RadioMaster RP4-TD
  • 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.
• In order to use your own passphrase, you will need to either reflash the Rx with your binding phrase OR connect it via WiFi to your PC/phone via WiFi (WebUI).
• ExpressLRS Wiki here.

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.

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 here.
• Flashing via UART:
  • 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.
  • Press the boot button while powering on the receiver, then release – the RGB LED will not turn on.
  • 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 “.
  • Web-flasher here

Packing:

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

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