ER3 PRO PWM - Dual-Band GEMINI and GEMINI-X Receiver - International

Specifications

Item

• ER3 PRO PWM - Dual-Band GEMINI and GEMINI-X Receiver

Battery input

• Input Voltage: DC 5.0 – 12.0V

Wireless Protocol

• ExpressLRS

Output Channels

• 3CH PWM

Serial Output

• CRSF / SBUS

Telemetry Power

• Up to 100mW (adjustable via LUA)

Voltage Detection Range (EXT-V)

• DC 4.0 – 70V

Bus Interface

• CRSF

Antenna

• 25 cm high-sensitivity, MMCX connector

Weight

• 13.5 g (without antenna)

Dimensions

• 49.2 × 26.8 × 13.0 mm

Firmware Target

• RadioMaster Dual 2.4GHz/900MHz Receiver

Device Name

• ER3Pro Dual Band True Diversity + 3×PWM RX

ELRS FW Version

• Requires version 4.1.0 or Higher

Manufacturer selected package option

• International

Manufacturer-recommended ELRS preset for standard servos

• 100Hz Full packet rate; Std (1:32) telemetry ratio; 8ch switch mode

Manufacturer-recommended ELRS preset for performance servos

• 333Hz Full packet rate; Std (1:128) telemetry ratio; 8ch switch mode

External-voltage telemetry connection

• 2-pin JST-GH; connect the red wire to battery or ESC positive

Voltage measurement architecture

• Independent ADC channels for EXT-V and receiver supply voltage (V-PWM)

Servo supply-current requirement

• ESC BEC current must meet the connected servo requirements; for high-voltage/high-torque servos, the manual recommends a compatible 2S 8.4V direct supply or suitable high-current UBEC

Voltage telemetry calibration

• Calibrate RxBt sensor offset to actual battery voltage; adjust ratio if the difference is large

Packages

Vehicle applications

No vehicle applications recorded.

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