I started learning Arduino a couple of years ago and started playing around with a 16×2 LCD display that uses the Hitachi HD44780 chipset. I soon found out that the screen provides 8 character slots that are customizable. I found a project in which someone used the slots to create their own special characters, which […]
Custom Large Font For 16×2 LCDs using arduino Read More »
Generic character LCD modules contain an industry standard HD44780 compatible controller*, which can operate down at 3 volts. But the modules are usually specified to work only at 5 volts, unless you choose a specific one designed for 3V operation. There are two reasons why the modules won’t work at 3 volts. First, the required
Getting character LCDs to work at 3 volts Read More »
Almost all electronics have some sort of human interface, from blinking lights and beeping speakers to seven segment alphanumeric and Liquid Crystal Displays. This Instructable is about salvaging and testing Liquid Crystal Displays, and a couple tricks I know to make salvaging them more successful. I salvage; components can get expensive, LCDs can run $10.00
Salvaging Liquid Crystal Displays (LCDs) Read More »
Here we describe interfacing of three 16×2 LCDs with common data lines to an Arduino Uno board. Four data lines of all the three LCDs are connected to digital pins of the Arduino Uno board but data displayed on each LCD is different. Circuit and working The circuit diagram for interfacing of three LCDs with
Interfacing Multiple LCDs With Arduino Read More »
I spent the better part of the day on Saturday doing some more basic research into connecting an Arduino and LCD for this ongoing project. For the most part, it’s pretty basic and following the wiring diagrams and tutorials online is fine. I ran into a problem with getting text on two lines, which I’ll
Getting Things to Talk: Arduino + LCDs Read More »
Introduction This is the second article in a three part series I am writing on the Arduino hardware platform. This article focuses on wiring an Arduino to a character LCD and a graphic LCD, and includes static and animated demos to show off the capabilities of each display. Character and Graphic LCDs After I initially
Interfacing an Arduino with LCDs Read More »
