It's an elevator with automatic doors. The code has two FSM, one for the motor that makes it go up and down and one for the automatic door.

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

This is a simple square-wave generator that basically uses the TimerOne library allow you to generate a PWM signal at pin 9.

Build a 6x6 grid with an MPR121, expanding possible inputs from a mere 12 to 36!

Showcasing our spot welder, which is controlled by an Arduino Nano.

This code performs FFT with good accuracy.

Discharge a fully charged Lithium-Ion cell through a resistor while measuring the current flowing through the resistor to calculate capacity

Inexpensive, precision, autorange capacitance meter with a large range.

Relay VS Transistor.

Writing only Arduino code, it is easy to set up control over experiments and display results on the VirtualPanel Windows application.

Use Arduino, an OLED display and an AD9833 DDS module to create a useful wave generator for your lab.

An arduiNOOB friendly tutorial for beginners on daisy-chaining.

Need fast cheap laser rangefinder for your Arduino project? You can use a laser tape measure for this!

Inexpensive to build but a very useful tool for every electronics laboratory.

A useful tool for accurately measuring long distances.

Make a Linux distribution that is focused on the development of Arduino and IoT. It's a Distro for Arduino.

Use the latest ATtiny processors in the Arduino Environment. These have the memory capacity of ATmega chips in smaller and cheaper packages.

Program an AVR-IoT WG board externally instead of the onboard debugger. I had to workaround as I bricked my nEDBG debugger on my AVR-IoT WG.

Make your own mini oscilloscope at home. It’s simple and easy to do!

Improved version of the soldering iron controller for Hakko 907 iron. To simplify building the controller, LCD screen is implemented.

In this tutorial I am looking at using millis function in the code. Describing the advantages it has over using delay function.

Goodbye calibration! Digitization of pH test paper! This is a pH meter that reads the color of the pH test paper.

Purpose of this project is to write a code to control coin acceptor with Arduino so it can be used in other projects

A very simple but useful device for your lab.