by Dominic | Feb 17, 2022 | Circuits, Hardware, Sensors, Tutorials
Motion Sensors Motion detection can be done quite easily by using the GPIO ports of the Raspberry Pi and a motion sensor. Motion detectors use a Pyroelectric sensor which triggers a signal pin when exposed to infra red (IR) radiation, when a person or an animal…
by Dominic | Jul 17, 2022 | Hardware, Pool Monitor, Projects, Sensors
Atlas Scientific 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…
by Dominic | May 23, 2022 | Hardware, Pool Monitor, Projects, Sensors
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 the health and safety of your pool. Electrical Conductivity sensors provide a reading in…
by Dominic | May 21, 2022 | Hardware, Pool Monitor, Projects, Sensors
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 in your pool…
by Dominic | May 13, 2022 | Hardware, Pool Monitor, Projects, Sensors
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 that works…
by Dominic | May 4, 2022 | Hardware, Pool Monitor, Projects, Sensors
The 1-Wire DS18B20 waterproof temperature sensor is a very common sensor that is used with the Raspberry Pi . The use of a 1-Wire connection allows you to add multiple thermometers while using only one GPIO port. With several of these sensors connected to the…
