Tag Archives: display

EA DOGS displays – small by size, big by features

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Minimum power consumption, very good legibility and a lot of versions – these are the EA DOG displays.

When we speak about “versions” – in case of EADOG from company Electronic Assembly it means a lot of “glass” types (STM, FSTN, transflective,…) and what is unique – many s display + backlight combinations. Right thanks to this unique possibility to make your own combination display + backlight according to your needs make the EADOG series so versatile. We can find here extraordinarily thin and compact graphic and character displays:

  • 1×8 – 2×16 – 3×16 for +5V or +3.3V power supply
  • 4×10/2×10 – 4×20 for +3.3V
  • Graphic 102×32 .. 240×128 for +3.3V

Character displays are with the SPI interface, some are also with I2C, and 4/8 bit. Simple 3,3V or 5V power supply further simplifies their usage.
In the EADOG family can be found „S“, „M“, „L“ and „XL“ series (EADOGS, EADOGM,…). The smallest one – EADOGS is suitable even for miniature applications, where a place is precious, but still a display is desirable or necessary there. On stock we keep three graphic versions 102*64 px with 33,6*23,4 mm active area. The newest member in the family of these small displays is the EA DOGS104-A character display (4×10 with a small font or 2×10 with a big font), while the character height may be changed by software. EA DOGS104-A is in standard equipped with 3 character sets (EN, EU, cyrilic).

The easiest way how to start development is to use the EA 9780-3USB development board.

EA DOGS displays – small by size, big by features – [Link]

Raspberry Pi OLED Internet Bandwidth Display

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by Archie500 @ instructables.com:

In a very brief summary it works as follows: The Raspberry Pi uses SNMP (Simple Network Management Protocol) to get the WAN data rates from the router and then displays these graphically on the OLED screen.

The Raspberry Pi was already set up as our media player and is next to the television. The OLED display was inexpensive and can be bought from a number of places including eBay.

Raspberry Pi OLED Internet Bandwidth Display – [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]

µGFX – embedded library for Displays and Touchscreens

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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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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]

Arduino VFD Display Clock Tutorial

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by Kesselwagen @ instructables.com

Vacuum fluorescent displays look really kinda fancy and cool to me, I really love the blue-breen color. That’s why I decided to write this Instructable about a clock based on this technology. This is my first instructable here, showing you how I have designed built my clock and how you can build yourself exactly the same or a similar clock that utilizes the VFD display. I’m not a native speaker – just for you to know if you’re wondering why some sentences might make no sense at all.

Arduino VFD Display Clock 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]

High quality bezel will provide professional look to your displays

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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]

Technology breakthrough claimed by flexible electronics specialist

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Flexible electronics specialist FlexEnable says it has made a technology breakthrough which makes the manufacture of glass free LCDs practical and cost effective. Supporting the development, the company will demonstrate a full colour conformal in plane switching organic LCD at the forthcoming SID event in San Jose. It adds the display is light, thin and robust.

Flexible electronics specialist FlexEnable says it has made a technology breakthrough which makes the manufacture of glass free LCDs practical and cost effective. Supporting the development, the company will demonstrate a full colour conformal in plane switching organic LCD at the forthcoming SID event in San Jose. It adds the display is light, thin and robust.

Technology breakthrough claimed by flexible electronics specialist – [Link]