It looks like a servo, it acts like a servo, but it's more than just a servo! Adafruit got a factory to custom-make these classic 'standard' sized hobby servos with a twist - the feedback (potentiometer wiper) line is brought out to a fourth white wire. You can read this wire with an analog input such as those on an Arduino, to get the servo's position. That information can be used in robotics to improve stability or even allow 'recording' of servo motion.
Check out Adafruit's example Arduino sketch which demonstrates how to record motion data to the EEPROM and then play it back when a button is pressed. Comes with a range of horns as seen above.
Analog Feedback Servo (2:55)
- Dimensions: 39.55mm / 1.5" x 39.55mm / 1.5" x 19.5mm / 0.7"
- Max Dimensions: 55.36mm / 2.1" x 43.34mm / 1.7" x 19.5mm / 0.7"
- Wire length (at least): 13cm / 5.1" long
- Torque: 90.26 oz*in / 6.5 kg*cm
- Speed: 0.21 sec/60°
- Weight: 46 grams
- Dual ball bearing
- Plastic gearbox
- Spline Count: 23
This product is listed in:
Documentation and Resources:
- The Maker Revolution
The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
- Motor Drivers vs. Motor Controllers
If you’ve ever built a robot with wheels, or any motorised parts really, you’ll have come across the issue of needing to drive it from your microcontroller. Because a standard chip is only able to output a small amount of current, you&rsq...
- Controlling Servo Motors with Arduino
Servo motors are extremely useful in so many different applications; it’d be good to learn how to control them! Solenoid and DC motor control have been shown already; for the most part, they are both pretty straightforward (only power and groun...
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