firmware.

Specifications
ESP8285, SX1281
Antenna connector: IPEX MHF 1
6x PWM outputs
Support 2~8S VBat voltage sense
RF Frequency: 2.4GHz (2400~2480MHz)
Telemetry power: 12dbm
Receiver output protocol: PWM
Input voltage: 4~9V DC @ “+” pad
Voltage sense: 34V Max. @ “VBat” pad
Power dissipation: 45mA(binding), 85mA(wifi mode)
PCB size: 20mm x 18mm
Weight: 2g w/ antenna

Packing:
1x ELRS-R24-P6
1x IPEX MHF1 Antennas. 15cm
Dupont 2.54 pins (Board is shipped unsoldered)

Firmwares
ExpressLRS 3.0 or newer, DIY 2.4 GHz / DIY 2400 RX PWMP EX
ExpressLRS wiki for PWM receiver, Click HERE
Make sure Receiver and TX module both are running ExpressLRS 3.0 or newer