Content for 20x4 LCD

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.

Elevator with Arduino

“You’ll learn how to create your own elevator with Arduino. Why Develop an Elevator with Arduino? In many places, elevators are used to allow users of a building to move between different floors. Elevators are devices that work with …

Digital Vacuum Regulator

“This is a Veneer Vacuum Press (Vacuum Pump) which has been modified with a Digital Vacuum Regulator to operate with a selectable vacuum pressure. This device is a replacement for the Vacuum Controller in my DIY Veneer Vacuum Press built …

Three-Phase RMS Ammeter with Current Transformers

“Display on an LCD following parameters for each phase: - the RMS current - the maximum reached - the maximum of sliding average. Purpose: True RMS current measurement on 3 phases with current transformers. The results are displayed on a 20x4 Character HD44780 …

Pinewood Derby Car Scale With Center-of-Gravity (CG) Calculation

“A key factor when building a pinewood derby car is its weight. The Boy Scouts of America and other organizations specify a weight of no more than 5 ounces. To improve performance many builders will add as much weight (mass …

DIY reflow plate

“I’m preparing a video where I show you how to make the PCB design and order the panel version for your board and then solder all components at once. In that way you can save time and finish your …

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 …