This process is made really simple using the Teleduino sketch for your ethernet enabled Arduino. Haven't heard of Teleduino? That's cool, you may want to take a look at Arduino Control via a Web Service with Teleduino to get yourself started. It's designed to be quick and easy for rapid development.
This tutorial will guide you through the process of attaching a servo to your Arduino, and provide some example Teleduino API call to:
- Define a servo instance
- Set the position of a servo
Step 1: Parts Needed and Circuit Diagram
You need the following parts to complete this tutorial:
- Ethernet enabled Arduino with the Teleduino sketch loaded
- Breadboard (optional, but makes prototyping much easier)
- Dedicated 5V power supply for the servo(s) (optional, but recommended because servos can draw high current causing your Arduino to reset)
- Some hookup wire
The circuit is pretty simple, but sometimes a picture can paint a thousand words! Take a look at the attached circuit diagram to see how to connect the servo to the Arduino board and external power source.
Step 2: Put Circuit Together
Do a quick Google search to work out the pin-out for your particular servo.
For the servo used in the tutorial: yellow = signal, red = 5V, black = GND.
Any available digital pin on the Arduino can be used, just make sure you take note of which pin you connect it to so that you can reference it in the API calls later in the tutorial.