Category Archives: Block 4

Standard rotation servo

Lets start with trying out a standard rotation servo. Connect it to D9.

To control the servos, we are going to use a library called Servo. A library is a piece of code that has already been written and that you can call upon whenever you need to use it. Instead of having to write all that code yourself, you just have to add this line of code#include <Servo.h> to the beginning of your program.

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Continuous rotation servo

Now lets try out the continuous rotation servo. Connect the motor to digital port D9. You control the continuous rotation servo by writing a speed to it instead of a position. Why don’t you see what happens when you upload the same code as in the previous example.

Input Controlled Servo

Let’s try to use an input component to control the servo. In this example we will use a potentiometer. Connect the middle pin of a potentiometer to analog input A0. Connect one of the other pins to 5V and the final pin to Ground. Connect a standard rotation servo to D9.

Camera robot

Spy on your cat with this robot camera. Mount the camera robot and control it with a small joystick. You can run everything from the computer and when you see your cat doing something suspicious, take a picture!

Open box

OpenBox is an open source box that contains open source electronics. Oh, and it automatically opens when you knock on it.

Light chaser

This little vehicle is on an impossible, never ending mission to catch the light. You can make it follow you by pointing a flashlight at it. (The one on your mobile phone eg.) It will always turn towards the light.

Tickle Robot

This is just a regular ticklish robot in a rocking chair. Come to think of it, that doesn’t sound very regular at all. Tickle the robot on its heart and it will start wiggle like crazy.

Using Two Servos

When using two servos at the same time, your Arduino board will have a problem distributing enough current. There are different techniques to overcome this. Here you will explore how to write signals to the servos separately through the program.

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Types of Motors

You are going to use the Arduino board to control motors. Many electronics that have moving parts contain motors, e.g. printers, car toys, electronic toothbrushes. While there are many different types of them, you will mostly find the following three types of motors:


The robot week is finally here. This week you will build different machines using motors. The basic function of these motors is simple; they spin. But you will see that depending on how you decide to use them, you can get different objects to animate in many different ways. First of all, you will get an introduction to the different types of motors there are and some examples of when to use them. In the end of the week you’ll get to build a ticklish rocking chair robot or maybe a light chasing robot. Continue reading

Line Follower

The Line Follower does exactly what the name suggests, it follows a line. Make it go where ever you want by showing the way with a 3 cm wide, black line.