by Dominic | May 31, 2022 | Circuits, Hardware, Pool Monitor, Projects, Python
In this tutorial I will show you how to connect a relay board to a Raspberry Pi, relays are an electromagnetic switch that allows you to control a high voltage electrical circuit by opening and closing contacts in another low voltage circuit. On the Raspberry Pi the…
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…