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Node.js
Hardware & IoT focused on Node.js and Raspberry Pi and related concepts.
Raspberry Pi is a small, multi-use computer.
GPIO stands for General Purpose Input Output.
We use Node.js with the onoff module to control the GPIO.
For that we used a GPIO pin as "Output".
For this you need:
WebSocket enables bidirectional communication in real time over the web.
In the previous chapters we have learned how to use WebSocket, and how to use GPIO to turn LEDs on and off.
Components are parts of a larger whole. In this chapter, we explain the different components we use in our tutorial.