Tag Archives: LCD

CO2, temperature and humidity monitor

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An open source CO2 monitoring project from Roving Dynamics:

The project described below uses a MH-Z16 or MH-Z19 CO2 sensor and a DHT-22 (or DHT-11 if less accuracy is required) to measure the Temperature and Humidity. It has a 4 line by 20 character LCD Display to show the current readings and status, a warning alarm and two relays which can be triggered on a low CO2 (Generally above 1000 ppm) normally to switch on an extractor fan and a high level (4000 ppm) which will trigger a warning device such as an external alarm. There are two models I used the 0 to 5000 ppm device here but the code will be the same for the 0 to 10000 ppm model

CO2, temperature and humidity monitor – [Link]

Arduino Geiger–Müller counter with LCD display

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Bob tipped us with his latest project. It’s a custom Arduino shield able to communicate with a Geiger-Muller counter and display data on a LCD display. The data are displayed in two layouts: bar graph of the pulses in one minute interval and histogram of the gathered data.

In the previous posts I’ve described a simple Geiger–Müller counter and various experiments with this device. Today I would like to present Arduino project to communicate with a Geiger-Muller counter, gather data and present it to the user. The device is based on Arduino Uno, Nokia 5110 LCD and homemade shield.

Arduino Geiger–Müller counter with LCD display – [Link]

CameraShutter – Control your DSLR camera

Control your DSLR to take a picture every x seconds for x minutes, fully configurable via LCD menus.

CameraShutter – Control your DSLR camera – [Link]

 

An Atmega library for multiple HD44780 LCDs

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Davide Gironi has posted an I2C multiple HD44780 AVR Atmega library:

This library implements a driver for HD44780 lcd connected through PCF8574 port expander.
Data is transmitted using only 2 wire over i2c with the PCF8574.
This library can drive up to 8 LCD concurrently.
Lcd driver is based upon Peter Fleury’s lcd driver
HD44780 to i2c library its based upon this library

An Atmega library for multiple HD44780 LCDs – [Link]

External Hardware Monitor

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Vincenzopaolo FlameE @ instructables.com shows us how to create an external hardware monitor based on Arduino and Nokia LCD display. Communication with the PC is done using Visual Basic program.

Hi guys! Today I will show you how create an external hardware monitor with any Arduino board(in my case a pro micro board), a Nokia 5110 LCD and some VB programming! Let’s get started!

External Hardware Monitor – [Link]

How to interface OLED 0.96inch LCD with Arduino

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This tutorial is going to teach you the basics on using OLED 0.96inch LCD128x64 with Arduino.

OLED 0.96 inch is a monochrome graphic display module with a built-in 0.96 inch, 128X64 high-resolution display. OLED 0.96inch is able to work despite the absence of backlight. In a dark environment, contrast of OLED display is higher than LCD display. This device is I^2C or SPI compatible. Due to its capability in displaying, it is often used in various application for instances, smart watch, MP3, function cellphone, portable health device and many others.

How to interface OLED 0.96inch LCD with Arduino – [Link]

Make Your Own Smartwatch From An Old Cell Phone

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Have an old cell phone laying around? Don’t know what to do with it? What if I told you that you could turn that old cell phone into a smartwatch!

What I’d like to do for this crazy/ambitions project is turn an old cell phone into a smartwatch. So obviously an old cell phone is required. The primary reason for this project is simply that I had an old cell phone laying around and wanted to find a creative way to repurpose it. The one I had is a Nokia 1100, but most other old cell phones would work, so long as you can find the schematics for the LCD online

Make Your Own Smartwatch From An Old Cell Phone – [Link]

RELATED POSTS

LCD 16×2 Interface with Raspberry Pi

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shubhamtrivedi95 @ instructables.com shows how to interface a 16×2 LCD display on Raspberry Pi. Sample code is provided.

LCD 16×2 Interface with Raspberry Pi – [Link]

Arduino + Thermocouple + Nokia 5110 LCD

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abhyu1112 @ instructables.com provides code for thermocouple interface to Arduino and Nokia 5110 LCD display.

This is a connection between arduino mega thermocouple and Nokia 5110 screen to display temperature which ranges till 1000*C. It can be used to measure temperature of engine.

Arduino + Thermocouple + Nokia 5110 LCD – [Link]

How to Scroll a single LCD line – Arduino

R Jordan Kreindler show us how to scroll a single line on a LCD display.

The Liquid Crystal Library has two quite useful functions scrollDisplayLeft() and scrollDisplayRight(). These functions scroll the whole display. That is, they scroll both lines on a 1602 LCD and all four lines on a 2004 LCD. What we often need is the ability to scroll a single line on these displays rather than the whole display. Also, we often want to scroll an entire line off the screen rather than just by one position, as the functions in the Liquid Crystal Library offer. This Instructable provides functions to do just that, and so should be thought of as an addition to the scrollDisplayLeft() and scrollDisplayRight() functions in the Liquid Crystal Library.

How to Scroll a single LCD line – Arduino – [Link]