The HC-SR04 Ultrasonic Range Sensor is used to measure distances by using ultrasonic sounds. It works by sending out a burst of ultrasound and listening for the echo when it bounces off of an object. A short pulse to trigger the detection, then listens for…
Connect a DS18b20 temperature sensor to your Raspberry PI as follows. I used a breakout for this. In this example we will just be using terminal commands Now you need to enter the following at the command prompt: [codesyntax lang=”bash”] sudo nano /boot/config.txt [/codesyntax] to open…
Sharing files over the network is incredibly handy, when I was writing code examples to publish on this site it was useful to run them on the Raspberry PI, copy them to a folder which could be accessed on my Windows 7 PC. Install and…
Getting an I2C device to work with your Raspberry PI requires a few steps, in this guide we show how to enable this. First of all you have to start up the raspian config tool, you do this as follows [codesyntax lang=”bash”] sudo raspi-config [/codesyntax]…
In this example we will connect a capacitive sensor to a GPIO pin on our Raspberry PI, when we touch the sensor we will display a message to the user. A practical use may be a touch activated lamp. This is the sensor we used…
Flash the ACT led from the command line, this tip was sent to me so I gave it a try, you could this in a script. The LED in question is seen below, this may depend on the version of Raspberry PI you have as…
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