Parameters:
Brand: BAYCK
Model: BK-2.4G-5CH
Frequency: 2.4Ghz
Chip: SX1281+ESP8285
Telemetry power: 12dbm
PCB board color: black
RF Connector:IPEX 1
Input voltage: 4-10V
PWM channel: 5 channels
Support one channel maximum 34V voltage return (requires firmware version 3.0.0 and above)
Receiver output protocol: PWM or CRSF
Power consumption: 45mA@5V (connection status), 85mA@5V (WIFI upgrade status)
Weight: 4.7g (receiver plus antenna)
PCB size: 15.5mm*25.5mm
Firmware: DIY 2.4 GHz / DIY 2400 RX PWMP

PWM output settings
The ELRS PWM receiver can enter the configuration interface through WIFI, and set parameters such as PWM channel, refresh frequency, and runaway protection. Specific steps are as follows:
The receiver is powered on and waits for 60S, the receiver light flashes quickly, connect to the WIFI hotspot (ExpressLRS RX) password expresslrs, and automatically enter the setting interface.
ELRS official website introduction https://www.expresslrs.org/3.0/hardware/pwm-receivers/

Download
Quick Start Manual www.cooaitech.com/filedownload/511992