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Understanding the digital read pin on a microcontroller
6 July 2017 | Updated 10 June 2018
When working with electronics, one will very often come across working with digital readings. Digital read (and write) pins are available on many microcontrollers and is one of the simpler pins to work with.
Magnetic door sensors
5 June 2017
This post introduces magnetic door sensors, also called reed switches, that are used to trigger movement of the objects (e.g. doors and windows) it is mounted too.
433MHz RF communication to a Raspberry Pi
27 March 2016 | Updated 1 July 2017
This post will explain how to get up and running with the 433MHz RF Transmitter Receiver modules to send radio frequency (RF) signal-codes from a transmitter device to a Raspberry Pi.
Laser Transmitter Receiver modules for sensing movement
23 March 2016 | Updated 6 December 2017
Laser Transmitter Receiver Modules consist of a collimated Laser Transmitter module (a straight, non-diverging laser beam) and a separate non-modulating Laser Tube Sensor/Receiver module (a laser beam sensor).
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