This is a simple square-wave generator that basically uses the TimerOne library allow you to generate a PWM signal at pin 9.
Project tutorial by Mirko Pavleski
This library controls and drives motion of all types of bipolar stepper motors with 2 phase (4 terminals).
Project tutorial by ambhatt
DIY Arduino hot air SMD rework station.
Project tutorial by Alexander and Maker B R
The device is capable of testing: PNP, NPN transistors, N or P channel MOSFET, diodes, double diodes, resistors, capacitors...
Use the IO Expander and Relay Expander with the Arduino to control up to 65,280 relays!
Project tutorial by Christian
Inexpensive to build but a very useful tool for every electronics laboratory.
A simple to build, but very sensitive electromagnetic field detector.
An after-work project conjures you out of the box a precise clock on the windowsill with inexpensive components
Project tutorial by Ingo Lohs
This project uses a micro SD card to store a text file and print it out to a 16x2 liquid crystal display.
Project tutorial by millerman4487
Learn how to make a FLEX Sensor for almost no money at home. These kinds of sensors cost quite a lot in the market ranging from 10$ to 30$!
Project tutorial by Tech Nuttiez
There are numerous examples of how to connect button switches via an external interrupt. This example offers an alternative approach.
Project tutorial by ronbentley1
A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems.
Project tutorial by Giovanni Carrera
How long have we been pressing this button? (Interruptions and EEPROM)
Project tutorial by javier muñoz sáez
Improved version of the soldering iron controller for Hakko 907 iron.
To simplify building the controller, LCD screen is implemented.
Project tutorial by Alexander
Inexpensive, precision, autorange capacitance meter with a large range.
Showcasing our spot welder, which is controlled by an Arduino Nano.
Project tutorial by Michael Marinis and PCBWay
I am going to present an easy way to know the values of resistors without reading the color bands on them. You'll never need to guessing!
Project tutorial by Iasonas Christoulakis
This code performs FFT with good accuracy.
Project tutorial by abhilash_patel
Simple to build and useful instrument for your lab.
On this simple tutorial, we will explore how to discover colors using an Arduino and the TCS 3200 sensor, displaying it on an LCD.
Project tutorial by MJRoBot (Marcelo Rovai)
This project uses an ultrasonic distance sensor to create a pocket of wave interference where a small object can be levitated.
A very simple but useful device for your lab.
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
Build a 6x6 grid with an MPR121, expanding possible inputs from a mere 12 to 36!
Project tutorial by Arduino “having11” Guy
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