Minimal power consumption, slim design and a big amount of available versions with multi-color backlight – these are some benefits of the EADOG series displays.
EADOG series is familiar to many of you and probably it´s your favorite one from these main reasons:
- displays are unusually flat (thin)
- the have a very low power consumption of 100-s uA (without backlight)
- wide possibilities of backlight, monochrome and also RGB
- some types are well legible even without backlight
- simple communication through 4/8 bit or SPI interface and newly even I2C
So far, types with up to 128x64px or 3×16 characters were available. The most recent additions to the EADOG family are bigger types with resolution of 160x104px (EADOGXL160), 240x64px (EADOGM240), 240x128px (EADOGXL240) and 4×20 characters (EADOGM204) and appropriate backlight modules EALED66x40, EALED94x40 and EALED94x67. Also these new types maintain a low profile – only 5.8 or 6.5mm with backlighting. A positivity is that even these new types are based on standard LCD controllers.
A guide at a choice of a suitable combination of display +backlight will provide you the application described in our article – Start with the EA DOG displays for free.
Detailed information will provide you the datasheets at particular types.
Industrial applications rely on the EA DOG displays - [Link]
With the Bolymin graphic embedded module it´s possible to focus only on software development – hardware is done.
Term: 2014.11.19 10:00 – 11:30 CET
How to effectively handle human-machine interface in your applications? - [Link]
by Ioannis Kedros @ embeddedday.com:
I am very new to the multicopters hobby and a super newbie to the FPV (First Person Viewer) flying. I’ve never watch in real time someone flying through the screen but I’ve watched hundreds of videos online! The best-case scenario is to use some goggles (like the Fat Shark) in order to have a better experience. This will make you believe that you are actually inside the cockpit flying the machine. And that’s awesome!
But sometimes, even when everything looks simple this is not translated to cheap as well! A good FPV system, from the camera on the copter to the radio transmission system and the screen on the ground will cost you sometimes more than $200 (without even taking the price of the goggles into the equation). This is huge for my budget especially when the cost will be mirrored to a hobby of mine! So, I am going to try the most efficient solution!
FPV System - [Link]
by Colin Jeffrey @ gizmag.com:
Liquid Crystal Displays (LCDs) are a common and increasingly pervasive method of displaying information for everything from watches to giant TV screens. Though, like most other displays, LCDs require electrical energy to constantly display an image. Researchers from the Hong Kong University of Science and Technology, however, have produced an ultra-thin LCD screen prototype that is not only capable of displaying images without continuous power, but in 3D as well.
Energy-efficient 3D display maintains images without power - [Link]
This device was built at Recursive Software Development Labs in order to be mounted on a rally car competing in the Estonian National Rally championship.
The racing team needed help realizing a reliable measurement device which would output the currently inserted gear on a large, bright led display.
The biggest challenge to overcome was that the existing mechanical sequential gearshift would only allow enough room for a small potentiometer to be attached to its main axis, but the mounting mechanism is highly subject to vibrations, therefore after some time the readings would become unreliable or jittery.
Rally Gearshift Display - [Link]
Many homes in the United States have water that contains higher concentrations of dissolved minerals, which is called hard water. Although there is nothing toxic about hard water, it is less desirable for cleaning, it leaves mineral deposits, and it can shorten the lifetime or efficiency of equipment such as water heaters.
A water softener is a household appliance that commonly exchanges salt for some of the dissolved minerals, resulting in softer water. The salt supply is stored in a brine tank and must be refilled every month or so. If you forget to refill the tank, the water softener is rendered temporarily ineffective.
Water Softener LED Display - [Link]
The ChronodeVFD is a personal project I’ve been working on for a couple of months. It’s a wristwatch built around the IVL2-7/5 VFD display tube. I originally purchased a few of these tubes to build a standard desk clock, but after playing around with them, I realized I could probably build a wristwatch too. The tube has a number of features which make it more suited than most Soviet-surplus VFDs for this purpose.
ChronodeVFD: Wearable Electronics VFD Wristwatch - [Link]
TinyScreen is a tiny customizable display. Play games, get notifications from your phone and display useful information.
TinyScreen is the new way to visualize your environment. With a beautiful color OLED display, TinyScreen is designed to be used to display information from the TinyDuino platform, which stack together like little electronic Lego’s.
With TinyScreen there are several default apps that will work right out of the box – like a Smart Watch app, a Video player app and a video game app. You can use these default apps with NO PROGRAMMING AT ALL!
Arduino TinyScreen - [Link]
The image may be a bit grainy and (at the moment) just monochrome but that is only to be expected for what is the world’s first flexible display to incorporate graphene in its pixel electronics. The new display technology is a result of collaboration between the Cambridge Graphene Centre and Plastic Logic. Plastic Logic has already developed flexible display electronics but this new prototype is an active matrix electrophoretic display, similar to the screens used in today’s e-readers, made of flexible plastic instead of glass. In contrast to conventional displays, the pixel electronics, or backplane, of this display includes a solution-processed graphene electrode, replacing the sputtered metal electrode layer within Plastic Logic’s conventional devices, bringing product and process benefits.
First Graphene-based Flexible Display - [Link]
The evolution sometimes shows, that not everything “new” is automatically better than something „well-proven“. One of examples was also a „boom“ of digital panel meters, when it seemed for a while, that the life of analog panel meters is coming to an end. However it showed very soon, that an analog display has a huge advantage in a very fast legibility – i.e. already a brief look at a meter is enough to realize the position of a needle of a meter. Naturally, accuracy of reading of value from an analog meter is lower, than that of a digital (7-sgment) display. mainly at the beginning of a range, but this doesn´t matter in many cases and a certainty of a fast check, whether for example a given variable is in normal is often much more important.
Fortunately, classic electromechanical panel meter can be replaced by graphic displays thus obtaining a free hand at design of your own panel meter. At the same time, the combination of an analog and a digital meter can be created this way. Perhaps the best “replacement” for analog meters is a round display, which has a minimum space requirement in a target device. Novelty in this segment is the uLCD220RD (round) display module with a circle active surface (circle 220 px, 1,38“). Despite the fact, that it´s a small size display, it´s driven by the most powerful processor from 4D Systems – Diablo 16, which gives it a big versatility of usage, many interfaces and GPIO pins.
New version of a well known SW package for development of graphic applications – 4D Workshop IDE from 4D Systems already supports this new module even in the Visi Genie environment, enabling a „drag&drop“ development of application. In praxis a 220 px circle is able to display a considerable amount of information. On attached pictures we bring you a small demonstration of uLCD220RD module imaging.
Round panel meter by means of a display? - [Link]