3 · Outputs & actuators
Drive a servo motor
Intermediate18 min
Goal
Sweep a servo from 0° to 180° and back.
Why it matters
The servo reads pulse width (1 to 2 ms): that is position modulation.
What you need
- Arduino UNO board
- SG90 servo motor
- MPU6050 IMU
Nothing to buy: every component below is simulated in the browser.
Steps
- 01Add a servo motor on pin 9.
- 02Sweep the angle from 0 to 180 with a for loop.
- 03Leave 15 ms between each degree so the arm can follow.
- 04Do the return trip.
This tutorial runs inside the Circuitly simulator: your wiring and your code are checked automatically at every step.
Frequently asked questions
- Do I need to buy hardware for this tutorial?
- No. Everything runs in the browser: Circuitly simulates the board, the components and the code. Real hardware is optional if you want to rebuild the circuit afterwards.
- Which components are used?
- Arduino UNO board, SG90 servo motor, MPU6050 IMU. They are already available in the simulator library.
- How long does it take?
- About 18 minutes, intermediate level, in 4 guided steps.
- What should I know before starting?
- The previous tutorial in the series, “Melody with rhythm”, is enough preparation. No software install is required.
- Is the code provided and checked?
- The simulator checks your wiring and your code automatically at every step, and shows the commented solution if you get stuck.
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