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CRSF to PWM Converter, CRSF-PWM-6
Brand: Matek
Product Code: BS040-001
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CRSF to PWM Converter, CRSF-PWM-6
Description
1. Product Summary
1.1. Product Description
The Matek CRSF → PWM Converter (model CRSF-PWM-6) converts the CRSF signal (Crossfire / ExpressLRS protocol) into up to six independent PWM channels. It is designed for RC aircraft, FPV drones, and model planes that use CRSF receivers but require standard PWM servos, ESCs, or other PWM-controlled devices.
1.2. Product Features
- Compatible exclusively with receivers outputting the CRSF protocol.
- Supports up to 6 independent PWM output channels.
- Adjustable PWM frequency: 50 Hz (default), 100 Hz, 160 Hz, 330 Hz, 400 Hz.
- Two UART ports:
- UART1 — for receiver connection.
- UART2 — for GPS, firmware update, or configuration.
- Telemetry support (with external sensors and GPS): RxBt, Curr, Capa, Bat %, GPS, GSpd, Hdg, Alt, Sats.
- Built-in battery voltage monitor up to 36 V (integrated 1 kΩ : 10 kΩ divider).
- Supports external current sensor (0–3.3 V signal).
- No built-in 5 V BEC — servos and ESCs require external 5–9 V power supply.
- Ultra-compact and lightweight design: 25 mm × 16 mm, ≈ 1.3 g.
2. Applications
- RC Aircraft: Fixed-wing models using CRSF receivers with PWM servos.
- FPV Drones: Compact FPV builds needing PWM output or telemetry expansion.
- Telemetry Systems: For monitoring battery voltage, current, and GPS data in CRSF setups.
- Experimental Builds: Projects requiring modular CRSF-to-PWM signal flexibility.
3. Technical Specifications
Table 3-1. CRSF-PWM-6 Technical Parameters
| Parameter | Specification |
|---|---|
| Number of PWM Channels | 6 |
| PWM Frequency | 50 / 100 / 160 / 330 / 400 Hz (default 50 Hz) |
| Input Voltage (Vpad 5 V) | 4 – 9 V |
| Battery Voltage Monitoring (Vbat) | 0 – 36 V (1 kΩ : 10 kΩ divider built-in) |
| Current Signal (Curr input) | 0 – 3.3 V |
| Dimensions | 25 mm × 16 mm |
| Weight | ≈ 1.3 g |
4. Package Contents
- 1 × Matek CRSF-PWM-6 Converter
- 1 × Dupont 2.54 mm pin header set
NOTE: Receiver, GPS, servos, and power cables are not included and must be purchased separately.
5. Summary
The Matek CRSF-PWM-6 is a compact and efficient converter that bridges the gap between modern digital CRSF receivers and traditional PWM devices. It provides up to six independent outputs, telemetry capability, and flexible UART connectivity — ideal for FPV pilots, RC enthusiasts, and developers seeking reliable and modular CRSF-to-PWM signal conversion.
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