Matek ExpressLRS/ELRS 2.4GHz PWM Vario Receiver, R24-P6V
by Matek Systems

Specifications

    ESP32-PICO-D4, SX1281, ExpressLRS Firmware
    PA/LNA: SE2431L
    RF Frequency: 2.4GHz ISM
    Telemetry power: 22.5dbm (180mW)
    Diversity: Antenna-switching, default ANT1
    Barometer SPL06-001 (Vario)
    Receiver output:  6x PWM CH
    VBAT voltage sense: 0~25.5V
    Antenna connector: IPEX MHF-1

    Power supply: 4-13V DC @ “V” Pad
    Power dissipation:  60mA~80mA@5V IN
    PCB size: 30mm x 18mm
    Weight: 4g w/ antenna
    Packing:
        1x ELRS-R24-P6V
        2x IPEX MHF1 Antennas. 15cm
        Dupont 2.54 pins  (Board is shipped unsoldered)

Firmwares

    ExpressLRS,  wiki, Click HERE
    Receiver Target:  Generic ESP32 PWM Vario 2.4Ghz RX, /or RadioMaster ER6-GV, /or RadioMaster ER6-G
    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.
    Transmitter fw version should be EdgeTX 2.7.1/OpenTX 2.3.15 or newer

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Flashing via Wifi

    Power on receiver. Receiver’s LED(Red) will blink slow at first, and after 30s, it should blink fast indicating it’s on Wifi Hotspot Mode.
    Wifi SSID “ExpressLRS RX”,  Password “expresslrs”
    More detailed steps,  pls refer this page.

Flashing via UART

    Disconnect ESC and servos from receiver first.
    Wire the receiver into the USB-TTL adapter, with TX(PWM 2 pin) on receiver connected to the Rx on the USB-TTL, and RX(PWM 3 pin) on receiver connected to the Tx of the USB-TTL. Wire 5V and GND of the USB-TTL to “V” and GND of the Receiver.
    Press the boot button while powering on the receiver, then release – the Red LED on receiver should now be solid on.
    In configurator,  Select the target Generic ESP32 PWM Vario 2.4Ghz RX,  or RadioMaster ER6-GV  and  “UART” for Flashing Method,  set your bind phrase and Firmware Options , Check “erase before flash” and “Force Flash “.
    Web-flasher  https://expresslrs.github.io/web-flasher/