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Diodes for beginners

This guide to diodes for beginners aims to give you all the knowledge you need for Raspberry Pi and Arduino projects. Diodes are simple electronic...

Resistors for beginners

This guide to resistors for beginners aims to give you all the knowledge you need for Raspberry Pi and Arduino projects. One of the most...

Beginner’s electronics guide Raspberry Pi, Arduino

This beginner's guide aims to give you basic knowledge, and understanding of electronic circuits. The Very much-needed thing if you want to explore RPI and...

Infrared Sensor HC-SR501 PIR Motion Sensor for a Raspberry PI...

How to use PIR sensor with your Raspberry PI.

Sonar HC-SR04 ultrasonic ranger for a Raspberry PI & Arduino

How to connect sonar to raspberry pi.

NodeRED for beginners

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NodeRED for beginners: 6. Function node

The Function Node is one of the most useful nodes in NodeRED. It's a javascript editor which doesn't do much unless you tell it...
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NodeRED for beginners: 5. Connectivity

I explained how to process the data in the last tutorial, its time to learn how to send the data to NodeRED and how...
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NodeRED for beginners: 4. Data Processing

If you made your first flow already, you know that data is passed between each node. If you want to see this in a simplified example,...
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NodeRED for beginners: 3. Your First Flow

We talked about why you should get NodeRED in the first place, and how to get started with NodeRED, now it's time for your...
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NodeRED for beginners: 2. NodeRED Getting started

You have made the right choice! Investing in the NodeRED server will pay off soon! If you, however, are still not sure why would...