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Matek CRSF-PWM-V10 Converter
Brand: Matek
Product Code: CRSF-PWM-V10
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Matek CRSF-PWM-V10 Converter
Description
1. Product Summary
1.1. Product Description
The Matek CRSF-PWM-V10 Converter is a high-performance signal conversion module that transforms CRSF protocol data from modern digital receivers (such as TBS Crossfire or ExpressLRS) into up to ten independent PWM channels. Designed for FPV aircraft, fixed-wing drones, and model planes, this unit provides full telemetry support, including vario and barometric altitude data, as well as voltage and current monitoring. It serves as a reliable interface for connecting CRSF receivers to traditional PWM-controlled servos and ESCs.
1.2. Product Features
- Compatible exclusively with receivers supporting the CRSF protocol.
- Provides up to 10 independent PWM output channels.
- Adjustable PWM frequency: 50 Hz (default), 100 Hz, 160 Hz, 330 Hz, 400 Hz.
- Equipped with two UART ports:
- UART1 — for connecting the CRSF receiver.
- UART2 — for GPS, configuration, or firmware updates.
- Supports full telemetry: RxBt, Curr, Capa, Bat %, GPS, GSpd, Hdg, Alt, Sats, VSpd, Baro Alt.
- Integrated barometric vario sensor for altitude and vertical speed data.
- Built-in voltage divider (1K : 10K) for battery monitoring up to 36 V.
- Supports external current sensor input (0–3.3 V).
- No onboard 5 V BEC — external 5–9 V supply required for servos or ESCs.
- Compact and lightweight: 38 mm × 16 mm, weight ≈ 1.8 g.
- Firmware upgradable via UART interface.
2. Technical Specifications
Table 2-1. CRSF-PWM-V10 Converter Specifications
| Parameter | Specification |
|---|---|
| Protocol | CRSF (Crossfire / ExpressLRS) |
| PWM Output Channels | 10 independent outputs |
| PWM Frequency | 50 / 100 / 160 / 330 / 400 Hz (default 50 Hz) |
| UART Ports | 2 (UART1 for receiver, UART2 for GPS/configuration) |
| Telemetry | RxBt, Curr, Capa, Bat%, GPS, GSpd, Hdg, Alt, Sats, VSpd, Baro Alt |
| Voltage Monitoring (VBat) | 0 – 36 V (1K:10K divider built-in) |
| Current Sensor Input | 0 – 3.3 V |
| Power Supply (5 V pad) | 4 – 9 V (external BEC required) |
| Integrated Sensors | Barometer / Vario |
| Firmware Update | UART / USB-TTL adapter |
| Dimensions | 38 mm × 16 mm |
| Weight | ≈ 1.8 g |
3. Applications
- Fixed-Wing Aircraft: Enables CRSF-based receivers to control servos and ESCs via PWM.
- FPV Drones: Adds PWM outputs and telemetry data to CRSF systems.
- Gliders: Integrated vario telemetry for climb/sink and altitude tracking.
- Hybrid UAVs and Industrial Systems: Bridges digital CRSF communication with analog PWM controls.
4. Installation & Usage Notes
- Provide external regulated 5–9 V power to the servo/ESC rail — no onboard BEC available.
- Connect your CRSF receiver to UART1 and optional GPS or configuration device to UART2.
- Battery voltage can be monitored by connecting it to the VBat pad (max 36 V).
- For telemetry: connect current sensor output (0–3.3 V) to the Curr input pad.
- Use the ExpressLRS Configurator or other CRSF-compatible tools for firmware updates.
- Ensure proper wiring polarity and secure mounting for vibration resistance in flight.
5. Integration Recommendations
- Ideal for retrofitting existing PWM-controlled aircraft to CRSF digital radio systems.
- Maintain short power and signal lines to reduce electrical noise.
- Use twisted or shielded signal cables for clean PWM output.
- Mount converter away from ESCs or power regulators to avoid RF interference.
- Combine with Matek ELRS receivers for a complete long-range control system.
6. Practical Summary
The Matek CRSF-PWM-V10 converter bridges modern CRSF protocol systems with traditional PWM hardware, supporting up to ten channels of servo or ESC control and full telemetry feedback. With integrated barometric vario, voltage monitoring up to 36 V, and support for external current sensors, it is a professional-grade solution for RC pilots, UAV engineers, and developers seeking reliable digital-to-analog signal integration. Compact, configurable, and telemetry-ready — it’s the ideal companion for ExpressLRS or Crossfire systems.
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