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ExpressLRS/ELRS 2.4GHz PWMReceiver
Brand: Matek
Product Code: ELRS-R24-P
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ExpressLRS/ELRS 2.4GHz PWMReceiver
Description
1. Product Summary
1.1. Product Description
The Matek ExpressLRS / ELRS 2.4 GHz PWM Receiver (model ELRS-R24-P6V) is a high-performance 2.4 GHz receiver designed for RC aircraft, gliders, and UAVs that require multiple PWM channels with long-range digital control and telemetry. Based on the open-source ExpressLRS protocol, it delivers ultra-low latency, outstanding link stability, and real-time telemetry feedback including voltage, altitude, and vertical speed (vario).
1.2. Product Features
- Operates on the 2.4 GHz ISM frequency band (2400 – 2480 MHz).
- Powered by ExpressLRS firmware (ESP32-PICO-D4 / ESP8285 + SX1281 RF chipset).
- Provides 6 independent PWM output channels for direct servo or ESC connection.
- Integrated barometric vario sensor for real-time altitude and climb/sink telemetry.
- Full telemetry support (via CRSF protocol): voltage, current, capacity, GPS, altitude, vario data.
- RF output power: up to 22.5 dBm (region-dependent).
- Input voltage: 4 – 13 V DC (no built-in 5 V regulator).
- Compact, lightweight design ideal for fixed-wing and FPV builds.
- IPEX MHF-1 antenna connector for flexible mounting.
- Firmware upgradeable via ExpressLRS Configurator or Wi-Fi / UART interface.
2. Technical Specifications
Table 2-1. ELRS-R24-P6V Receiver Specifications
| Parameter | Specification |
|---|---|
| Frequency Band | 2.4 GHz ISM (2400 – 2480 MHz) |
| RF Chipset | SX1281 + ESP32-PICO-D4 / ESP8285 |
| Firmware | ExpressLRS (Open Source) |
| PWM Output Channels | 6 (Independent Outputs) |
| Telemetry Functions | Voltage, Current, Capacity, GPS, Altitude, Vario |
| Integrated Sensor | Barometer (Vario / Altimeter) |
| RF Output Power | Up to 22.5 dBm |
| Input Voltage | 4 – 13 V DC (External Power Required) |
| Antenna Connector | IPEX MHF-1 |
| Protocol | CRSF / PWM / Telemetry |
| Dimensions | Approx. 30 mm × 18 mm |
| Weight | ≈ 4 g (with antenna) |
3. Applications
- Fixed-Wing Aircraft: Reliable long-range control for servos and ESCs via PWM outputs.
- Gliders & Sailplanes: Built-in barometric vario provides climb/sink telemetry data.
- UAVs & Drones: Long-range communication with telemetry for professional applications.
- Experimental / DIY Platforms: Ideal for developers integrating ELRS into custom systems.
4. Installation & Usage Notes
- Provide a stable 4 – 13 V DC power supply to the “V” input pad (no internal BEC).
- Connect servos or ESCs directly to the PWM output pins (CH1 – CH6).
- Bind receiver to your ExpressLRS transmitter using the standard binding procedure.
- Ensure antenna is properly mounted and clear of carbon fiber or metal obstructions.
- Firmware updates and configuration available via ExpressLRS Configurator or UART interface.
5. Integration Recommendations
- Ideal for fixed-wing pilots requiring analog servo outputs and full telemetry feedback.
- Mount receiver away from high-current lines to minimize RF noise.
- Use proper filtering on power lines for clean telemetry and link stability.
- Combine with compatible ExpressLRS 2.4 GHz transmitters for long-range, low-latency control.
- Maintain good airflow to avoid overheating when enclosed within fuselage compartments.
6. Practical Summary
The Matek ELRS-R24-P6V is a next-generation 2.4 GHz PWM receiver built for reliability, precision, and flexibility. It bridges the gap between modern ExpressLRS digital systems and traditional PWM servo setups, offering integrated vario telemetry, up to six PWM outputs, and long-range communication in a compact and lightweight design. Perfect for fixed-wing enthusiasts, glider pilots, and UAV builders seeking professional-grade control and telemetry performance.
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