Mateksys ExpressLRS 2.4G Vario Receiver

Description

Specific for Gliders and Fixed-Wing Pilots, this small for factor receiver with built in barometer provides vertical speed telemetry, the variometer sounds both ascending and descending tones giving the pilot feedback when they are in a lift or sinking, with expressLRS firmware and CRSF protocol this will also give you other telemetry data.

Specifications

• ESP8285, SX1281, ExpressLRS Firmware
• RF Frequency: 2.4GHz ISM (2400~2480MHz)
• Antenna connector: IPEX MHF-1
• Telemetry power: 12dbm
• CRSF-PWM-V converter with barometer integrated
• 7x PWM outputs (6x with power rails, PWM8 is just a signal pad)
• PWM frequency: 50, 100, 160, 330, 400Hz configurable
• PWM resolution: 4x 1024 position + 3x 128 position(ExpressLRS 2.0 Wide switch mode)
• 1x UART(2) for GPS
• 36V Max. battery voltage sense (1K:10K voltage divider built-in)
• Compatible with external Current sensor (0~3.3V)
• RxBt,Curr,Capa,Bat%,GPS telemetry and VSpd(Vario)
• Rated voltage: 3.5~9V @5V pad, 0~36V @Vbat, 0~3.3V @Curr
• Power dissipation:  50mA(binding), 90mA(wifi mode)
• No 5V regulator built-in, Servos must be powered via 5V pad on CRSF-PWM-V board by external 5V source.
• Failsafe value configurable
• Firmware upgradeable
• Physical:
  • PCB Size: 27x16mm,
  • Weight: 5g w/ antenna and 2.54 pins
• Packing:
  • 1x ELRS-R24-V(includes CRSF-PWM-V and 2.4G Receiver)
  • 1x IPEX MHF1 Antenna
  • 2.54mm straight and 90° 3×6 Dupont pins

Firmwares

• 2.4GHz Receiver: ExpressLRS /DIY_2400_RX_ESP8285_SX1280,  V2.0 or newer
• CRSF-PWM-V: crsf_pwm_v2.0 or newer

CRSF-PWM-V Featres (bottom board)

ExpressLRS Firmware instructions are here

CLI mode and parameters are here