Hardware
Raspberry Pi Motion Sensor
Motion detection can be done quite easily by using the GPIO ports of the Raspberry Pi and a motion sensor. In this article I will show you how to connect a PIR (Passive Infra-Red) sensor to the Pi and we will also use one of the GPIO’s as an output to connect up a simple LED so that you can check to see that the whole setup is working.
Connect a Camera to the Raspberry Pi
The Pi Camera from the Raspberry Pi Foundation is a great little unit that connects directly to your Raspberry Pi via a ribbon cable to the dedicated CSI (Camera Serial Interface) located just behind the Ethernet port. The Raspberry Pi Camera Board v2 is a high quality 8 megapixel
Cayenne and the Raspberry Pi
If writing software isn’t really your thing but you still want to create an interesting Internet of Things (IOT) project then using Cayenne and the Raspberry Pi is a great solution.
Soldering Techniques for Raspberry Pi Projects
Soldering is one of the skills that can really expand what you are able to do as an electronics hobbist and fortunately it not difficult to learn. By practicing some basic techniques you can open up a whole world of new projects.
Connect an LED and Button to a Raspberry Pi
Interacting with electronic circuits is one of the great things you can do with the Raspberry Pi utilising it’s General Purpose Input Output (GPIO) ports. If you are new to making electronic circuits then you do need to be careful as it is possible
Raspberry Pi I2C Temperature Sensor
There are several temperature sensors that are available for your Raspberry Pi one of the most popular being the DS18B20, however if you are looking for an I2C connected temperature sensor then the Atlas Scientific RTD Temperature sensor
Connecting a Relay Board to a Raspberry Pi
Relays are an electromagnetic switch that allows you to control one electrical circuit by opening and closing contacts in another circuit, on the Raspberry Pi the control circuit will be operated by our GPIO pins. A relay generally has 3 connection…
Connecting an Electrical Conductivity Sensor to a Raspberry Pi
If you have a saltwater pool and are using a chlorinator to provide most of the chlorine then knowing the amount of dissolved salt in the water is crucial to maintaining your pools health and safety. Electrical Conductivity sensors provide…
Connecting an ORP Sensor to a Raspberry Pi
Knowing the chlorine level of your pool is very important in keeping your pool safe and sanitary. When it comes to pool chemistry though it is the free chlorine level that really matters. Your free chlorine level is what is actually killing the bacteria…
Connecting a pH Sensor to a Raspberry Pi
Whether you want to monitor a pool, aquarium or some other body of water, connecting a pH sensor to a Raspberry Pi can be achieved relatively easily. In this tutorial i’ll be using the Atlas Scientific pH sensor, it’s an industrial grade sensor thats fully submersible up to the BNC connector in both fresh and saltwater. The sensor works using either serial communication or via the I2C protocol.
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