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FEETECH FS90R Micro Continuous Rotation Servo

Pololu item #: 2820
Brand: FEETECH
RoHS 3 compliant

Price break Unit price (US$)
1 5.95
5 5.59


backorders allowed

The FS90R is a micro servo that has been built by FEETECH specifically for continuous rotation, offering an inexpensive and easy way to get your small turret spinning or miniature robot moving, especially when paired with our 60×8mm wheels designed specifically for this servo. This servo can work with both 5 V and 3.3 V servo signals.

Key specs at 6 V: 130 RPM (no-load), 21 oz-in (1.5 kg-cm), 9 g, CCW rotation for pulse widths above the rest point.

 Description Specs (11) Pictures (8) Resources (1) FAQs (1) On the blog (4) 
What are the wires coming out of my servo?

Most standard radio control (RC) servos have three wires, each a different color. Usually, they are either black, red, and white, or they are brown, red, and orange/yellow:

  • brown or black = ground (GND, battery negative terminal)
  • red = servo power (Vservo, battery positive terminal)
  • orange, yellow, white, or blue = servo control signal line

Please check the specs for your servo to determine the proper power supply voltage, and please take care to plug the servo into your device in the proper orientation (plugging it in backwards could break the servo or your device).

Note: Some of the servos we carry also have an optional fourth green wire that is separate from the three standard ones. This wire provides access to the feedback potentiometer, allowing you to directly measure the position of the output. The servos with this extra wire have "with Position Feedback" at the ends of their product names. The picture below is an example of such a servo.

FEETECH Sub-Micro Servo FS0403-FB with Position Feedback.

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Related Categories

Continuous Rotation Servos
FEETECH Servos
Pololu Wheels for Servos
RC Servo Controllers
Servo Cables
Motors and Gearboxes
6.0 V NiMH Battery Packs
Voltage Regulators
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