Bob writes: I am working on some Arduino biometric designs perhaps for a new book. So far I have created the two line 1602 LCD display and now the Nokia 84×48 display. The Nokia display is more fun to work with since I can do a oscilloscope like display across the screen. I am working […]
Category Archives: LCD
16 x 2 LCD controlled via power line
Vinod blogged about a 16×2 LCD with data over power line: Then I just thought why even 1 wire for data? Because we can easily multiplex the 1 wire data line with the Vcc line by keeping a diode + capacitor combination towards the LCD power supply pin. I am using an arduino board to do […]
Adding the Nokia 5110 LCD to your Arduino data logger
From the comments on our ChipKIT based weather station using BME280 sensor module post, Edward Mallon writes: A lot of us have ended up at this sensor / screen combination. But I couldn’t afford the extravagance of six dedicated control lines on our little pro mini based loggers. However with some slight modification, you can drive […]
Reading a VGA monitor’s configuration data with I2C and a PocketBeagle
Ken Shirriff wrote an article showing how to read the monitor’s config data using the I2C protocol and a board with an I2C port: Have you ever wondered how your computer knows all the characteristics of your monitor— the supported resolutions, the model, and even the serial number? Most monitors use a system called DDC to communicate […]
SMA solar readout
Jean-Claude writes: This is the first post of a 3-part series about reading out an SMA solar inverter over Bluetooth and displaying some readings every few seconds. Long-time readers may remember the Solar at last weblog post from several years ago and the SMA Relay, based on a JeeNode v6. The Bluetooth readout code was derived […]
A LCD serial terminal with Teensy
Giovanni Carrera writes, “This project uses a serial 40×4 LCD display with a Teensy board to realize a compact serial terminal receiver to be connected to many systems with serial output such as our microcontroller systems and GPS receivers.” More details at ArduPicLab blog.
1mm pitch flex cable passthrough
Kuzyatech has a new project posted, a Flex (FPC) 1mm cable passthrough breakout: By popular demand, the breakout/passthrough combination boards family now includes a 1mm pitch variant This version handles up to 30 signals which seems to be a practical limit of most 1mm FPC connectors. Each signal is numbered and brought to a 0.1mm spacing […]
5″ capacitive touch panel with GSL1680 up’n running with Arduino
Helge of WeatherStation writes: After some help from wolfmanjm and CosR1, I managed to get a separate Buydisplay based GSL1680 touch panel up’n running on an Arduino Mega (1280) with only minor modifications to wolfmanjms code. The firmware is an integrated part of the sketch. Instead of using ram, it is put in the flash […]
Getting started with an I2C LCD using a Bus Pirate
Inderpreet over at Embedded Code writes: I got one of these (The LCD!) LCDs from the budget and the motive is to use them to display air quality. Low and behold I got them and these things are tiny… I mean more than I thought. BUT they should get the job done. This post is […]
Bus Pirate V4 LCD adapter
Dave of V-Tech Design wrote an article on how to modify a Bus Pirate LCD adapter for the Bus Pirate V4: Why do this? At the time of this writing Dangerous Prototypes had not developed a new LCD adapter for the Bus Pirate V4 and I needed one for a project. So why not modify the existing V3 […]
Getting character LCDs to work at 3 volts
Peter Jakab has written a new article on how to adapt character LCD modules for 3 volt operation. 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 […]
Arduino ultrasonic range finder, with I²C lcd display
An Arduino rangefinder with an ultrasonic sensor and an I²C interface display by Jan Henrik. He wrote an instructables here: The maximum rated range is 500 cm, the range is measured 20 times per seccond. It is Displayed on a lcd screen which is 20×4 chars big, it has a custom start message, and it can […]
HP 8642B backlight Mod
Kerry Wong writes: If you take a look at the picture below, you may recognize immediately that it is a picture of an HP 8642B synthesized signal generator. But if you take a closer look, you probably will notice something different if you have ever used an HP 8642B before. The original HP 8642 series […]
Vinctronics LCD Shield V1.0
Vincent of Vinctronics writes: This is Vinctronics first ever product – LCD Shield V1.0. Basically, this is a simple shield that provides four important functions: 1. A 2 line by 16 character plug-in ASCII LCD. 2. An active beeper. 3. A DS1307 RTC clock IC with 3V coin cell battery to maintain timekeeping when power is […]
What’s up with HD44780 LCD displays?
Nerd Ralph writes: There’s lots of projects and code online for using character LCD displays based on these controllers, particularly the ones with 2 rows of 16 characters (1602). They’re low power (~1mA @5V), and for only $2 each, they’re the cheapest LCD modules I’ve found. The controllers are over 20 years old, so as […]
Mini LCD adapter Backpack
Arthur Guy made this mini LCD backpack for the smaller display screens: This is an LCD backpack but it is for the smaller displays with the double row of pins rather than the single line. I made this adapter as I was working with some small displays and needed a simple way of connecting it to […]
K8LH 2-Pin 74HC595 LCD “8-bit” Backpack
McLaren writes, ” here’s another 74HC595 Backpack design with a 2-pin interface that uses LCD 8-Bit interface mode. Driver is pretty simple. It takes about 100-usecs to send each byte. Please check it out” Via the forum.
MCU controlled spot welder
Hercules Trapierakis over at Electronics-Lab writes: “This project is a controller for a dual pulse spot welder that has some nice features that are controlled using a LCD interface.” I always wanted a spot welder, so I decided to built one. I wanted to build a capacitance discharge one but I couldnt afford for the capacitors […]
Arduino LCD Smartie OLED project
Rupert Hirst writes, “I decided it was time to build my own version with the features that should have been in the official hardware”: LCD Smartie is open-source (cough!) software which allows a character LCD display to be used as an auxiliary display device for a PC. The program has built in support for many […]
USB and serial enabled LCD backpack back in stock
USB and serial enabled LCD backpack is back in stock at Seeed Studio. This board connects HD44780-compatible character LCD screens to your USB port. It works with apps like LCD Smartie to show news, system stats, and more on an external LCD. Get USB and serial enabled LCD backpack for $16.95.