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Continuous Rotation Drive for Compact Robots and Motion Projects
The Servo FS90R Micro Continuous Rotation is a practical continuous rotation servo from Circuitrocks for students, makers, and repair-friendly builds. It fits well in projects that need simple drive motion, while keeping setup straightforward for testing and prototype work.
Compared with generic parts, this product stands out through details such as Continuous rotation, Compact size. That makes it a solid choice for Arduino, ESP32, Raspberry Pi, robotics, motion-control, and workshop projects where matching the right part from the start saves time.
Important: Always match the electrical rating, size, and control method of this part with the rest of your setup before full-power testing.
Why you'll love it
- Continuous rotation: useful for drive systems, rollers, and simple motion tasks
- Compact size: easier to fit into small enclosures, lightweight robots, and tight layouts
- Simple speed and direction control: adds useful value when choosing parts for a build
- Good for compact drive tasks: adds useful value when choosing parts for a build
- Easy to integrate into small robots: adds useful value when choosing parts for a build
What you can build
This product is a good fit for drive wheels, feeders, rollers, and compact motion builds that need simple continuous rotation. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.
Starter bundles
A simple setup includes an Arduino-compatible board, a stable 5V supply, jumper wires, and a servo tester or PWM-capable controller.
Recommended add-ons
Useful add-ons include wheels, brackets, external power, and simple PWM control hardware. You can also compare it with DFRobot DF15RSMG 360° Continuous Rotation Servo 20kg, Servo Motor DS04-NFC 360-Degree Continuous Rotation.
Comparison table
| Compared Product | Best For | Key Difference | Direct Link |
|---|---|---|---|
| DFRobot DF15RSMG 360° Continuous Rotation Servo 20kg | simple drive motion | 20kg, continuous rotation | View product |
| Servo Motor DS04-NFC 360-Degree Continuous Rotation | simple drive motion | NFC, continuous rotation | View product |
| Servo 9g Metal Gear Micro 1.8Kg | lightweight RC and small robotics | 9g, 1.8Kg, metal gear, micro | View product |
Technical specifications
| Product | Servo FS90R Micro Continuous Rotation |
|---|---|
| Brand | Circuitrocks |
| Product Type | Continuous Rotation Servo |
| Primary SKU | POL2820 |
| Key Specs | 6 V, 130 RPM, 21 oz-in, 1.5 kg-cm |
| Product URL | https://circuit.rocks/products/servo-fs90r-micro-continuous-rotation |
Pinout & power notes
Continuous-rotation servos use the same three-wire hookup as standard servos, but the signal controls speed and direction rather than a fixed angle.
What’s in the box
1 × Servo FS90R Micro Continuous Rotation
Frequently Asked Questions
Can this work with Arduino or similar boards?
Yes, as long as the voltage, control method, and wiring match your controller and power supply.
Should I power it directly from a controller pin?
For small signal-only modules that may be fine, but motors, pumps, solenoids, and relays should use a proper driver or external supply.
Is this good for student and prototype builds?
Yes. It fits well in testing, learning, and proof-of-concept projects when matched with the right support parts.
Does this move to a fixed angle?
No. Continuous-rotation servos spin like a geared drive unit, so the control signal changes speed and direction instead of angle.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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