Notes:
Arduino interface
To complete this exercise you will need the Python Serial Port Extension. You can either install this from the Raspberry Pi SD card or download them from http://pypi.python.org/pypi/pyserial/ . You will also need the Debian package called “arduino”, in order to install the Arduino development IDE. You can download this from the Debian website.
Obviously, you will also need an Arduino board.
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. An Arduino board connected to a Raspberry Pi is a very useful and powerful combination. You can learn more about the Arduino platform at the website http://www.arduino.cc/ This example uses an Arduino board connected to a Raspberry Pi using a USB cable. You do not have to build any circuits to make this program work – that is left up to your imagination. This program is very simple; it asks for a character on your Raspberry Pi, and then sends it to the Arduino. The Arduino responds by returning the character and its ASCII code. Finally, the response is printed on the screen of the Raspberry Pi.
Human-computer interfacing
134
Made with FlippingBook flipbook maker