20x4 LCD

This is a basic 20 character by 4 line display. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is freely available. You will need ~11 general I/O pins to interface to this LCD screen. Includes LED backlight.

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4-20ma Generator/Tester Using Arduino

“4-20mA generators are available on ebay, but I for one love the DIY part of things and using parts I have laying around. I wanted to test our PLC’s analog inputs to verify our scada readings and to test …

Arduino Sorta Sudoku Game

“A lot of people like to play Sudoku and the grandkids like guessing games so I decided to make a portable Sorta Sudoku game. In my version the game is a 4x4 grid but only one number is provided. The …

Arduino RTC Bird Feeder v2.0 for Poultry Conditioning

“Feed the poultry in quotidian routine to condition them - sensory preconditioning - to improve egg production and hatching process. I was keeping quails, chickens, and ducks in my garden before I moved, but it was struggling to manage to feed them …

I2C to 8Bit LCD Display Controller

“This project is an I2C to 8-bit Bus converter plus three(3) control bits, primarily designed to handle 2004 and 1602 LCD display modules. While developing a project, I run into a need for an LCD to display several information …

UltraSonic Liquid Level Controller

“A Simple ultrasonic liquid level controller based on STM32 microcontroller Introduction As you probably know, Iran has dry weather, and there is a lack of water in my country. Sometimes, especially in the summer, it can be seen that the …

RadioGlobe - Spin to Search Over 2000 Web Radio Stations!

“Ever wanted to explore thousands of the world’s radio stations, in seconds, simply by spinning a globe? Then this is the project for you! This Instructables will show you how to build a ‘RadioGlobe’, which has over 2000 stations …

Roberts RM33 Raspberry Pi Internet Radio (Yet Another)

“Yes, it is another Raspberry Pi internet radio build and not my first one either. I am not sure why this build is still such a popular one, but I do still enjoy it and cannot say this one will …

Beer Keg Scales

“I came back to Australia in 2016 after some years living in Thailand and I couldn’t believe the price of a carton of beer, around $50. So I set up my own brewery again, this time using kegs instead …

Embedded Meets the Internet: Build Your Own Air Quality Meter

“I’m bored. I’m sure you are too. I’m personally very thankful that I can still work through this strange period - but there are still hours in the day to fill. I wanted a personal project, so I …

Big Arduino LCD Clock With Two Alarms and Temperature Monitor Controlled by IR TV Remote

“How to build an Arduino based LCD Clock with Two alarms and temperature monitor controlled by IR TV remote. This is an LCD clock made with DS3231 real time clock module, which unlike DS1307 has the possibility of Alarm and …