Chinawut Yangpheng

In this lesson you will learn how to use a PIR movement detector with an Arduino and to have the Arduino communicate with a Python program running on your computer to send an email whenever movement is detected by the sensor. The Arduino is the heart of this project. It 'listens' to the PIR sensor and when motion is detect, instructs the computer via the USB port to send an email. Parts by  Simon Monk To build the project described in this lesson, you will need the following parts. You will also need a computer with an Internet connection (so you can send email thru it)! Part Qty PIR Sensor  1 Arduino Uno R3 1 Half-sized Breadboard  1 Jumper wire pack Breadboard Layout by  Simon Monk The only thing that you are connecting to the Arduino is the PIR sensor, so you could if you prefer simply push the wires attached to the PIR sensor directly into the Arduino board. However, the wires from the sensor, are a bit loose in the Arduino so

Stepper motors fall somewhere in between a regular DC motor and a servo motor. They have the advantage that they can be positioned accurately, moved forward or backwards one 'step' at a time, but they can also rotate continuously. In this lesson you will learn how to control a stepper motor using your Arduino and the same L293D motor control chip that you used with the DC motor in lesson 15. Parts by  Simon Monk To build the project described in this lesson, you will need the following parts. Part Qty 5V Stepper Motor 1 L293D IC 1 Half-size Breadboard 1 Arduino Uno R3 1 Jumper wire pack Breadboard Layout by  Simon Monk The stepper motor has five leads, and we will be using both halves of the L293D this time. This means that there are a lot of connections to make on the breadboard. The motor has a 5-way socket on the end. Push jumper wires into the sockets to allow the motor to be connected to the breadboard. Note that the