Tag Archives: LCD

Programmable 8-character LCD module and digital voltmeter

volmeter

A programmable 8-character LCD module and digital voltmeter project from Tuxgraphics:

Our 3 digit LED digital voltmeter module has been quite successful over the years. This new LCD module is basically an advanced version with a lot more capabilities. You can power it with the same voltage source that your signal is derived from. You can load your own code into this module but it has even some nice features for people who just need a voltmeter module and don’t want to play with C-code.

Programmable 8-character LCD module and digital voltmeter – [Link]

An Android Reflow controller that anyone can build

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Andy build an android reflow controller based on ATMega8L . He writes:

Welcome to the never ending saga of Andy and his reflow controllers. About a year ago I published a project writeup showing how I built a PID-based reflow controller. It featured a 640×360 graphical LCD from the Sony U5 Vivaz mobile phone and was all-surface mount. It worked well and continues to serve me well to this day but I always thought that there were improvements that I could make in several areas.

Firstly, there’s no reason why it should have been all surface-mount. The LCD in particular has a 0.4mm connector that many people will find very hard to solder by hand. After all, presumably you’re building a reflow controller to help solve that very problem. Chicken and egg.

An Android Reflow controller that anyone can build – [Link]

Gain the intelligent display module suitable also for use with Raspberry Pi

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Set uLCD-43PT-PI from 4D Systems allows to use the display module in any application and in addition, also with the popular micro PC Raspberry Pi. Using the included serial adapter and connecting cord it´s possible to start programming the display module within few seconds.

Gain set of uLCD-43PT-PI in value of 150, – EUR for free!

All that is necessary is to answer us a simple question:

What is the name of the graphics processor used in display uLCD-43PT?

uLCD-43PT-PI module (driven by a Picaso processor) includes a rich set of serial commands that can accept the Raspberry PI to draw basic shapes (lines, rectangles, circles), text, images, sound and writing data to the USD. 5V power supply is taken over the bus directly from the Raspberry Pi (or PC USB port) and therefore requires no external power adapter.

The display can be programmed using the (free) software 4D Systems Workshop 4 IDE Software. To program through regular PC you need to purchase 4D programming cable. For use in real applications a quality frame 4DBEZEL-43 can be a useful. It´s a ready-made solution with brass bushings and accurately designed metal spring clips.


Gain the intelligent display module suitable also for use with Raspberry Pi – [Link]

µGFX – embedded library for Displays and Touchscreens

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uGFX

µGFX is a library to interface all kinds of different displays and touchscreens to embedded devices. The main goal of the project is it to provide a set of feature rich tools like a complete GUI toolkit while keeping the system requirements at a minimum.

µGFX can either be run on top of an operating system like ChibiOS/RT, FreeRTOS and many others or on a bare-metal system.

The library is entirely written in C. It can be used in C++ applications without any modifications.
It’s free to use without any usage restrictions for non-commercial products and open hardware projects. Commercial licenses are available at low prices.

µGFX – embedded library for Displays and Touchscreens – [Link]

Writing a python module to simulate a LCD

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Screenshot (173)

by Prashant Mohta:

So recently I got a Raspberry pi and a 16×2 character LCD screen , I thought , lets make a simple game that can be played on the lcd. my first instinct was to code directly for the lcd on the pi , but as I started coding I realized that the clutter of having the lcd connected wasn’t really necessary while i am programming the game’s logic .

I decided to make a python module that gives me the lcd output on my monitor , this way i no longer need to work with my lcd connected and can even code the game on my laptop and test the results quickly . Moreover once im done with the coding , i can simply replace the module code , for the lcd control code , and my game is ready to deploy.

Writing a python module to simulate a LCD – [Link]

How to use an LCD displays – Arduino Tutorial

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by codebender_cc @ instructables.com:

The LiquidCrystal library allows you to control LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually find them by the 16-pin interface.

In this tutorial you will learn how to use LCD 16×2 display (and 20×4) with Arduino uno.

You will also learn how to use lcd.begin(), lcd.print() and lcd.setCursor() functions

How to use an LCD displays – Arduino Tutorial – [Link]

OLED displays for still better prices!

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Maybe it´s the right time for you to also consider usage of OLED displays in your applications.

The most advanced display technology – OLED, goes ahead into many industrial products thanks to its advantages. From a certain point of view exactly the industrial environment properly checks features of displays and especially in critical applications extreme thermal resistance a big advantage (immediate response even in frost).

As it uses to be, new technologies are rarely cheap. In case of OLED we can say about significantly more affordable price than a few years ago. For example even despite currently disadvantageous EUR/USD exchange rate, when many components become more expensive, renowned OLED character displays from company Electronic Assembly became cheaper during last weeks.

Naturally even LCD displays still have their undisputed advantages, for example a very low power consumption (EADOG series) and depending on type also a legibility even without a backlight. However in applications where you consider OLED vs. LCD (with a backlight), in majority of cases an OLED is a better choice. OLED is a better choice mainly because of unbelievably wide viewing angle, immediate response and a great contrast, where a black is truly black.

In our offer we have character OLED displays EAW series but also other universally usable OLED displays.
Some types of the EAW series are available in 2 versions – yellow/green and ice white. Detailed information will provide you the EAW flyer and the EAW datasheet.

OLED displays for still better prices! – [Link]

Arduino, Beaglebone, MCU enclosure with HMI (LCD & keypad)

boxuino

by Mircea Daneliuc:

An electronics enclosure with HMI ( I2C LCD and keypad) for projects with sensors and relays. Good for any MCU, Arduino, Beaglebone,AVR

I have searched the net high and low to find a professional looking enclosure with an HMI (Human Machine Interface) that I could use in my project involving sensors and relays, but I wasn’t able to find one. Not for a decent price, that is… Most of the Arduino cases or enclosures were nice little boxes with slots for USB and power adapter but with no real functionality, not enabling the microcontroller to relate to the outside world in any way.

Arduino, Beaglebone, MCU enclosure with HMI (LCD & keypad) – [Link]

High quality bezel will provide professional look to your displays

obr1713_uvod

If a production of a professional bezel is over above your possibilities, leave it to us.

Also can be added, that even in case you have a possibility to produce a suitable bezel, it can easily happen (especially at smaller batches) that it simply isn´t worth it. Design, prototyping,… all this costs something. On the other hand we have here a ready-made solution with true brass bushings and precisely designed spring clips. The result is an immediately usable bezel, while it´s only necessary to make a simple cut-out into the front panel of the device. There´s no need to drill mounting hols to exactly defined positions or so. We talk about 4D Bezel-s. Novelty in our stock offer are bezels for 7“ displays uLCD70. Bezels are available in a black and white version. In our standard offer can also be found bezels for 3,2“ and 4,3“ displays from company 4D Systems.Further details necessary for a trouble-free usage in a target device will provide you the 4D-Bezel-70 datasheet as well as other ones at particular types.

High quality bezel will provide professional look to your displays – [Link]