RC Brushed Motor Forward Reverse Relay Controller 4-9V PWM
RC Brushed Motor Forward Reverse Relay Controller 4-9V PWM
JQ-PWM03 RC Brushed Motor Forward/Reverse Relay Controller Module
Take full wireless command of your brushed DC motor with the JQ-PWM03 RC Motor Controller Module. Designed for RC model aircraft, robotics, and intelligent control projects, this compact relay-based module lets you drive a motor forward, in reverse, or bring it to a complete stop — all through a standard PWM remote control signal. Simple wiring and plug-and-play compatibility make it an ideal upgrade or replacement for any RC motor control application.
Key Features
- Wireless Remote Control: Compatible with most standard RC model aircraft transmitters and receivers available on the market.
- 3-Mode Motor Control: Seamlessly switch between forward rotation, reverse rotation, and full stop from your transmitter.
- Wide Voltage Range: Operates on DC 4V–9V, suitable for a variety of battery packs and power configurations.
- Standard PWM Signal: Accepts 50Hz PWM input with 1000µs–2000µs pulse width — the industry-standard RC signal format.
- Compact Form Factor: Measures just 42mm × 27mm × 18mm — lightweight and easy to mount in tight spaces.
- Simple Wiring: Minimal connections required; no programming or complex setup needed.
Technical Specifications
| Working Voltage | DC 4V – 9V |
| Control Method | RC Model Aircraft Remote Control (PWM) |
| PWM Frequency | 50Hz (20ms period) |
| Control Signal Range | 1000µs – 2000µs pulse width |
| Signal Amplitude | 3.3V – 5V |
| Dimensions | 42mm × 27mm × 18mm |
| EU LVD Voltage | Low voltage: Below 50Vac or 75Vdc |
PWM Signal Control Guide
- 1000µs – 1400µs: Motor runs in reverse
- 1400µs – 1600µs: Motor stops
- 1600µs – 2000µs: Motor runs forward
Applications
- RC model aircraft and drones
- Robotic and intelligent control systems
- DIY remote-controlled vehicles and boats
- Automated mechanisms requiring reversible motor direction
Important Notes
- Avoid frequent high-current reversals, as this may cause wear to the relay contacts. Continuous reversing below 1A is acceptable.
- Slight color variations may exist due to screen and lighting differences.
- Allow ±1mm–10mm tolerance due to manual measurement.
What's in the Box
- 1× RC Motor Controller Module (JQ-PWM03)
Made in Mainland China.
For guidance on safe electronics practices and low-voltage device standards, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What RC transmitters are compatible with this brushed motor relay controller?
A: The JQ-PWM03 module is compatible with most standard RC model aircraft transmitters and receivers that output a 50Hz PWM signal with a pulse width between 1000µs and 2000µs and a signal amplitude of 3.3V–5V. This covers the vast majority of hobby-grade RC systems on the market today.
Q: Can this controller be used for applications other than RC model aircraft?
A: Yes! While designed with RC model aircraft in mind, the JQ-PWM03 is also well-suited for robotics, DIY automation, remote-controlled vehicles, boats, and any intelligent control project requiring wireless, bidirectional motor direction control via a standard PWM signal.
Q: What is the maximum current this relay controller module can handle safely?
A: For frequent or continuous reversals, it is recommended to keep the current below 1A to preserve relay contact life. Higher currents are supported, but repeated high-current direction changes may accelerate contact wear. Always match the module's specifications to your motor's load requirements.