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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Piano Metronome

“This project was conceived of after I examined the types and styles of various off-the-shelf Metronomes. I am currently learning to play the piano and having a Metronome in order to keep time was necessary. I felt sure that I …

Connect LCDs With NodeMCU and Arduino

“Most of our Arduino projects require a way to present us with information about their state, and very often an LED can be enough to indicate if a condition is true or false. But, it is not uncommon that we …

Open Grow Light

“Exactly a year ago (February 2020), James’ wife wanted to expand her plant growing setup in the house. This included a bigger, larger, taller plant growing area AND the need for more lighting. BINGO! The seed for the Idea was …

Ingenious UOI based augmented reality using SIFT for ATM

“ATM in Augmented reality for ease use. Story Augmented Reality is considered as a media that gives attraction and new experience for the users. Based on the previous research, it is stated that the use of Augmented Reality in banking …

Dynamic arduino LCD menu

“The following Dynamic Arduino LCD menu is easy to use, easy to edit, expand. You can add as many menu items as you want. Just enter the menu items, write the corresponding function and you’re done. All this at …

Dual NiMh battery charger

“Automatic charger for NiMh batteries built on Arduino. You can buy some battery charger in the near supermarket, but for sure it is better to create your very own charger and have fun. This charger can be used to slow …

Corona - Beginners Arduino CO2-Measuring and Ampel Display Project

“This is a project for absolute Arduino Beginners! I was an absolute Arduino Beginner a week ago, so believe me, I know! HOWEVER, if you go through this - Step-by-Step, I might be able to let you build a useful gadget …

LCD Poetry Clock

“A 20x4 RGB LCD clock that can display over 500 poems using Arduino and an SD card reader. For Christmas this year I wanted to make my sister a Christmas present using Arduino. She enjoys poetry and so I decided …

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 …