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Matek ExpressLRS 2.4 GHz PWM Vario Receiver
Brand: Matek
Product Code: R24-P6V
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Matek ExpressLRS 2.4 GHz PWM Vario Receiver
Description
1. Product Summary
1.1. Product Description
The Matek ExpressLRS 2.4 GHz PWM Vario Receiver (R24-P6V) is a high-performance long-range receiver designed for fixed-wing aircraft, gliders, and UAVs that require standard PWM servo outputs combined with telemetry data. It features the open-source ExpressLRS protocol for low latency, wide coverage, and robust signal transmission. The built-in barometric vario sensor provides real-time altitude and vertical-speed telemetry, making the R24-P6V ideal for professional RC and FPV applications.
1.2. Product Features
- Operates on the 2.4 GHz ISM band (2400 – 2480 MHz).
- Powered by ESP32-PICO-D4 MCU and SX1281 RF chip.
- Built-in SE2431L PA/LNA module for enhanced transmission power.
- Up to 6 independent PWM output channels for servos and ESCs.
- Integrated barometric vario sensor (SPL06-001) for altitude and climb/sink telemetry.
- Telemetry-enabled: voltage, altitude, vertical speed, GPS, satellites, heading, and battery data.
- RF output power up to 22.5 dBm (≈ 200 mW).
- VBat monitoring up to 25.5 V (≈ 6S LiPo).
- Input voltage range: 4 – 13 V DC.
- Compact and lightweight design — PCB 30 mm × 18 mm, ≈ 4 g with antenna.
- IPEX MHF-1 antenna connector for flexible placement.
- Firmware target: Generic ESP32 PWM Vario 2.4 GHz RX.
2. Technical Specifications
Table 2-1. ELRS-R24-P6V Receiver Specifications
| Parameter | Specification |
|---|---|
| Frequency Band | 2.4 GHz ISM (2400 – 2480 MHz) |
| MCU / RF Chipset | ESP32-PICO-D4 + SX1281 RF |
| PA / LNA Module | SE2431L Power Amplifier / Low Noise Amplifier |
| RF Output Power | Up to 22.5 dBm (≈ 200 mW) |
| Firmware Target | Generic ESP32 PWM Vario 2.4 GHz RX |
| PWM Channels | 6 × Independent PWM Outputs |
| Telemetry | Voltage, Altitude, Vario, GPS, Heading, Satellites |
| Integrated Sensor | Barometer SPL06-001 (Vario / Altimeter) |
| Voltage Input (V pad) | 4 – 13 V DC |
| VBat Monitoring | Up to 25.5 V (≈ 6S LiPo) |
| Current Draw | ≈ 60 – 80 mA @ 5 V |
| Antenna Connector | IPEX MHF-1 |
| Dimensions | 30 mm × 18 mm |
| Weight | ≈ 4 g (with antenna) |
| Status | Discontinued (EOL) |
3. Applications
- Fixed-Wing Aircraft: Reliable long-range PWM control with full telemetry feedback.
- Gliders / Sailplanes: Integrated barometric vario provides altitude and climb/sink data.
- UAVs & Industrial Platforms: Combines analog PWM outputs with digital telemetry precision.
- Legacy Systems: Upgrade older servo-based setups using the modern ExpressLRS link.
4. Installation & Usage Notes
- Provide regulated 4 – 13 V DC to the V pad (no internal BEC).
- Connect servos or ESCs to the 6 PWM output channels (CH1–CH6).
- Use the VBat pad for battery-voltage telemetry (up to ≈ 25.5 V max).
- Bind receiver to your ExpressLRS transmitter using the binding phrase or manual bind button.
- Ensure the antenna is mounted away from metal or carbon fiber to maintain signal quality.
- Firmware updates available via ExpressLRS Configurator or UART interface.
5. Integration Recommendations
- Ideal for fixed-wing pilots and glider enthusiasts requiring PWM outputs and altitude telemetry.
- Mount the receiver away from high-current wires and ESCs to reduce RF interference.
- Use short, twisted signal cables for PWM connections to minimize noise.
- Confirm firmware target (Generic ESP32 PWM Vario 2.4 GHz RX) before updating firmware.
- Consider newer variants if the R24-P6V is no longer available (EOL).
6. Practical Summary
The Matek ELRS-R24-P6V is a professional-grade 2.4 GHz PWM receiver featuring integrated vario and altitude telemetry via ExpressLRS protocol. It provides six PWM outputs, long-range communication, and accurate altitude feedback in a compact design. With ESP32 architecture, high RF performance, and full telemetry capabilities, the R24-P6V is an excellent choice for gliders, fixed-wings, and UAVs requiring precision control and environmental awareness in flight.
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