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Electronics and Microcontroller Articles
Articles and short tutorials on electronics, microcontrollers, Arduino, Raspberry PI, embedded systems and related topics.
Plugging In and Testing the Arduino Ethernet Shield
This article shows how to plug the Arduino Ethernet shield into an Arduino Uno, then connect it to an Ethernet cable and finally test that the Ethernet shield is working.
These are the first things that need to be done after buying an Arduino Ethernet shield for the first time.
Battery Powering Arduino Uno
This article shows how to make up a cable to connect a 9V battery to an Arduino Uno.
Ten Things to Do After Buying a Raspberry PI
After buying a Raspberry PI board, you will need to load an operating system, set up your keyboard, set up your screen and tweak various other settings to suit your hardware and your preferences – this article explains how.
Connect to the Raspberry PI Serial Port from a Windows PC
The Raspberry PI can be operated without a network connection, keyboard, mouse and screen by connection through the serial port and running a terminal emulator on the PC. This article shows how.
STM32F100xx LQFP64 Pin Functions
When learning a new microcontroller, a good understanding of pin functions is essential. Here we look at several views of STM32F100xx microcontroller pins and functions (LQFP64).
Testing the GT-511C3 Fingerprint Scanner Module
This basic test uses an Arduino Uno to test that communications with the GT-511C3 fingerprint scanner module are working.
Radio Controlled Watermelon
A radio controlled watermelon built out of parts taken from a radio controlled aeroplane (RC airplane) and a hollowed out watermelon.
Hobby Motor Kit Assembly
Electric motor kit with multi-ratio reduction gearbox unpacking and assembly.
AH1751 Hall Effect Latch Behaviour
This article and video explain how the AH1751 hall effect latch switch behaves when manipulated by a magnet.
What is an LED Light Bar?
This article and video explain what an LED light bar is. An Arduino sketch is provided for operating and testing an LED light bar using an Arduino Uno.