Content for 20x4 LCD

Project  Superquiz!

Superquiz!

“My first real project with Arduino, I had a few things to learn on the way and still plenty more to do! I have commented as much as I feel needed so you should be able to easily modify the …

Wooden RPN Calculator

“A RPN (Reverse Polish Notation) calculator of billet walnut case. There are multi-functional RPN calculators with numbers of small keys. However, daily use RPN calculators with large and light touch buttons are rare. So I made it by my own …

Film Camera Tester

“The idea of using Arduino for measuring camera shutter timings is not new. What I’ve tried to do here, is to make a modular system with a set of features normally offered in professional testers, at the same time …

The 10 Euro IoT Computer With ESP 8266

“A little computer based on a datalogger shield, an ESP8266 dev board and a few other components running an IoT capable BASIC interpreter. The Idea This project is about building a small IoT computer running with BASIC with low cost …

Project  Ello Lc1

Ello Lc1

“World’s thinnest fully standalone DIY computer - 2mm!! I find annoying to see systems claiming “credit card computer” while at the same time being as thick as 50-60 actual credit cards. With this project I wanted to build a something …

High Precision Digital AC Energy Meter Circuit Voltage-Current-Power-KWh

“Disclaimer: Some parts of this circuit carry dangerous Mains voltage. Be careful with your experiments. If you are a beginner, ask some experienced users to guide you. Dealing with the 220V-AC mains voltage and measuring the AC loads’ true …

Arduino Combination Safe

“Rotate the potentiometers in the correct sequence to access system! Ever watched the movie ‘Army of Thieves’ on Netflix? This project was inspired by how the character in the movie open the vaults, and how intricate the combination locks on …

3-Axis Magnetometer

“Measure the magnitude and direction of Earth’s magnetic field with the HMC5883L 3-axis magnetometer. Introduction In this project, we’ll be interfacing the HMC5883L 3-axis magnetometer to an Arduino Uno. This device can measure the magnitude and direction of …

Advanced Water Management (AWM) in 10 Steps

“If 100 people lived on Earth, 74 had drinking water available when needed and free of contamination. (source: who). With this instructable, slightly more. The equipment presented here permanently monitors and controls the water supply for a community of 7 …

Arduino Wireless Weather Station Using NRF24L01, DHT11-DHT22

“Build a wireless weather station using two NRF24L01 modules that will Display both Indoor and Outdoor Temperature & Humidity. Step 1: What You Will Need: 2X Arduino UNO (or any other Arduino) LCD I2C Display 20X4 2x nrf24l01 module 2X DHT11 …