Here’s a Raspberry Pi hack that adds web control using PHP and MySQL. As you can see in the image, it serves up a webpage (using the Apache2 server) which allows you to change the state of the GPIO ...

The Raspberry Pi is a great machine to learn the ins and outs of blinking pins, but for doing anything that requires blinking pins fast, you’re better off going with a BeagleBone. This has been the ...

Raspberry Pi has launched a new product that would make it easier to build robots out of LEGO components. The Build HAT (or Hardware Attached on Top), as it is called, is an add-on device that plugs ...

There are only two simple on/off devices – the LED and the Buzzer. In this chapter we look at each in turn and learn how to create our own new custom on/off devices. The inheritance hierarchy for the ...

You might well start off with a single GPIO line flashing an LED, but slowly and surely you will graduate to more elaborate devices such as a robot that consists of a ...