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

The software library to calculate moon age, sunrise and sunset time.

An arduiNOOB friendly tutorial for beginners on daisy-chaining.

Probably the most useful Arduino project I've ever made! A automatic tester for a product I sell.

Three different way of connecting a push button with an Arduino microcontroller.

The Companion IC is a very cool looking Clock + Ohmmeter + Capacitance Meter + Diode Tester!

Use the IO Expander and Relay Expander with the Arduino to control up to 65,280 relays!

How to make projects more robust and reliable using drivers ULN2803, UDN2981 and PNP transistors.

Measure rotation speed (RPM) with Optocoupler and Encoder disk and Arduino - Quick and Easy!

On this simple tutorial, we will explore how to discover colors using an Arduino and the TCS 3200 sensor, displaying it on an LCD.

In this project, you can measure typically up to 48V. It is recommended to use Arduino digital voltmeter as “0-48V DVM”.

Control your Commodore C-64, reset C64, select Kernal, BASIC and Charset ROM, SD2IEC device#, info display.

Build a treasure chest or use an existing storage box, attach a push-button quadrature rotary encoder (endless spinning dial) and lets go!

Connect Matrix Keyboard using only 2 Arduino pins by using PCF8574/PCF8574A I2C GPIO - Quick and Easy!

In this project, I am going to make a LAN cable tester with just a few basic electronics components. It cost me just a bit over $3.

I built the right and left mouse buttons with wall switches.

Track display for a Commodore 1541 floppy drive (retro hardware).

A study for a linear measuring device with Arduino and photoelectric rotary encoder.

In this tutorial, I am going to talk about the PCF8574 8-bit GPIO port extender.

Arduino Nano and Visuino: Convert Acceleration to Angle From Accelerometer and Gyroscope MPU6050 I2C Sensor - quick and easy.

Using the built-in Arduino EEPROM to save and restore values - Quick and Easy.

Today we are going to learn about touch switch based on TTP223.

Shows to visually impaired or ignoring the resistors colour code or lazy techs, either the exact value or value in E12 or E24 series

Easily connect Arduino boards at a great distance over RS485 with Visuino.