Add an external S-meter on any Icom amateur radio transceiver that has a CI-V control port.

With modern I2C Protocol for the LCD, minimizing the wiring. A Basic Version with the UNO and a feature rich Version with the MEGA2560.

Step by step on how to program a ATtiny85 microcontroller with Arduino Uno development board.

Module tutorial, signal visualisation and a simple code to measure not only sinewave signals but all types, like TRMS Ammeter. + LCD/OLED.

I will explain how templates work and how you may use them in your code.

This project uses an ultrasonic distance sensor to create a pocket of wave interference where a small object can be levitated.

Introduction to watchdog timer in microcontroller

Using the ThreadHandler library to run 57 hard real-time threads on an Arduino Uno with only 2048 bytes of memory.

Arduino is used to measure frequency and duty cycle of pulses and display them on LCD.

Get not only 5 volts but also 9, 12 volts (18 Watts max) out of any QC-compatible charger/power bank for supplying power hungry projects.

Sketch of transistor tester project from Karl-Heinz Kübbeler, so it's much simpler to study, modify, verify and upload to an Arduino.

You'll learn how to communicate two Arduinos via RS485.

Improved serial debugging, with debug levels and simple software debugger, to see/change global variables, add watch, or call a function.

Use an Arduino with a MCP4131 digitally controlled potentiometer to implement a variable cutoff frequency filter. Multiple applications.

Clock LCD display adjustable.

An Arduino powered floppy diskreader/writer for making and writing disk images from and to AmigaDOS floppy disks, works winUAE too

You'll learn how to create an automation system to communicate 3 Arduinos via RS485.

In this tutorial, I will show you how to install the dark theme for your Arduino IDE for the reason of overexposure to the screen light.

Design projects using many 100's of output pins, using banks of serial-parallel ICs, up to 255 ICs/2040 output pins, on minimal digital pins

When it sees you, it won't stop following!

Use of a simple instrumentation method (based on Arduino and Excel) to acquire, monitor and store PV system data in real-time.

A small tutorial project that tells you what direction your joystick is pointing in when you push it.

An example sketch that will read a simple toggle switch reliably, irrespective of the circuit design.

Compact board to program an ATtiny using an Arduino UNO.