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Controlling a Servo Motor with MicroPython

Types of Servos

Although there are may types of servos you can purchase, in our labs there are two main types of servos that we use:

  1. SG90 Micro Servo, 9 grams, 180 degree, plastic gears - $4
  2. MG90S Micro Servo, 9 grams, 180 degree, metal gears - $5

There are other variations that have 360 degree or continuous rotation servos.

Servo Connections

Almost all servos have a three pin connector that are spaced 1/10th of an inch apart so they will work with our breadboards.

  1. Ground (black or brown wire)
  2. 5 volt power (always red)
  3. Data (orange or yellow)


  1. SparkFun Servos Page
  2. SparkFun Category for Servos
  3. eBay Servo Plastic Servo
  4. eBay Servo Metal Gear Servo