Overview of 2014

The highly popular   serial peripheral interface (SPI) is now available on ELECTRONIC ASSEMBLY OLED text displays. The deployment of serial data transmission continues to increase and SPI expands the application range of the displays. A broad and ever -expanding range of SPI-enabled components and microcontrollers is available on the market and the SPI bus is now being designed into many applications. In theory, there is no limit to the number of displays and nodes that can be attached to the SPI bus. The bus has 3 shared bus lines (MOSI, MISO and CLK) as well as a CS ( chip-select) line.

Previously, the advanced text displays which are available in ice white and yellow/green were only supplied with a 4-/8 -bit data bus.

All displays have a built-in controller similar to the HD44780 and run on a single 3.3V or 5V supply. Current consumption is very low with 15    ~50mA. 4 character sets including special characters are already stored in the character ROM: English/Japanese, English/Russian (Cyrillic) and 2 different Western European character sets. Users can also define up to 8 of their own characters. Different functions can easily be programmed with a single command: Clear Display, Cursor Home, Cursor ON/OFF, Cursor Blink and Shift Display. Example code is available on the homepage. All OLED displays will run in a wide operating temperature range (-40  ~+80°C).

ELECTRONIC ASSEMBLY offers 9 different versions of its text OLEDs:
EA W082-XLG with 2x8 characters (5. 5mm high)
EA W162, 6 versions with 2x16 characters (5. 5mm and 8. 9mm high)
EA W202-XLG with 2x20 characters (5. 5mm high)
EA W204-XLG with 4x20 characters (5. 5mm high)
Here’s the link for the corresponding data sheet.

The new EA 9780-3USB test board allows a rapid start to be made on development projects involving displays of the EA DOG and EA eLABEL20 lines from Gilching manufacturer  ELECTRONIC ASSEMBLY. The PCB drives all display modules of these product lines and, when combined with the free PC software StartDog.exe, enables all displays and illumination schemes of the DOG series to be tested rapidly. Commissioning does not require any proprietary hardware or software development at all, which means that high-level decisions can be reached extremely quickly and at minimum expense.
The board comes with an arrangement of plug contacts to suit all the above display modules. The PCB also contains the driver circuit for the LED backlighting of the display as well as 2 banks of DIP switches that allow even multicolor backlighting right through to full-color RGB illumination to be realized. No other hardware components – such as adapters, driver boards, power supplies or the like – are required. Connection to the master PC is by means of a supplied USB cable. Once the test board is connected to the PC, the displays immediately show the screen content developed with StartDog.exe.
This software is available free of charge on the home page and can be used even without a test board, which means that text and bitmap graphics for the display modules can be displayed directly. This screen content is loaded onto the test board and displayed. Use of the program is largely self-explanatory and does not require any software knowledge  . Screen content, displays and illumination schemes can thus be developed and tested extremely rapidly and at minimum expense.
Here’s the link for the relating data sheet.

The LCD graphics module EA DIP180B-5LWTP from ELECTRONIC ASSEMBMLY is being offered in an interesting format.
With external dimensions of only      102x27x11mm (window    88x19mm), it is ideal for use in 19-inch racks, where it can be accommodated in a single RU. Even so,   180x32 pixels can still display a lot. The very bright super-twist LCD   is configured with LED backlighting and offers a high contrast in blue/white. It delivers brilliant images and optimum readability even under poor lighting conditions.
3 type PT6520 controllers (compatible with SED1520) are used to control the left, center and right sections of the display. All characters are designed as graphics and various character sets are available on a USB flash drive.
The use of super-twist technology allows a fast response time even when temperatures are very low. In fact, at extremely low operating temperatures of -20°C, the display has a sufficient response time of approximately 2.5 s. The operating temperature range extends from -20  to +70°C.
The display comes with automatic temperature compensation. This removes the usual need to adjust the contrast during operation. The module can be soldered directly to the printed circuit board, avoiding complex assembly with additional mechanical components. A robust analog 4-wire panel is optionally available as a touch panel.
Other key features of this high-quality LCD graphics module include:

• Connection by 8-bit data bus
• Power supply +3.3 V…+5 V  /approx. -3.3V max.  800µA
• Long LED lighting service life of 100,000 hours
• Many years of availability

Here’s the link for the corresponding data sheet.
Other modules in the same technology:  Dot-matrix modules with 1x8, 2x16 and 4x20, character and graphics modules with 122x32, 128x64 and 240x128 dots.

The EA DOGXL240-7 is the latest addition to the  ELECTRONIC ASSEMBLY EA DOG series. The new graphics display has 240x128 pixel resolution. It comes with a UC1611s controller, graphics RAM and alternatively with background lighting. The compact display (   94x67mm) is ideal for handheld applications, particularly because current consumption is only  900µA (without lighting) and the display can be powered by batteries. 3 different LED background lighting options and 4 different display technologies (STN and FSTN) are available, giving users up to 8 possible designs to choose from. All feature high brightness and contrast.

Other attractive features include:
Super -flat, 2. 8mm without backlight, 6. 5mm with LED backlight
Broad power input range, 2.  7V to 3. 3V, no auxiliary voltage needed
Serial SPI interface (3- and 4-wire) and I2C
Fast and easy mounting by pins soldered to PCB
Operating temperature -20 to +70°C with built-in temperature compensation

The following backlighting options are available: White, green/red and amber. The backlight color can be switched between red and green for 2-color displays. All are extremely bright for excellent readability and they have low power consumption.

The EA DOGXL240-7 modules will also operate with the EA TOUCH240-3, which is a 4-wire resistive touch panel that has a self-adhesive backing and can be mounted directly onto the display. ELECTRONIC ASSEMBLY recommends a display with backlight to ensure good readability when the touch panel is used.

The EA DOGXL240-7 modules have been designed with compact handheld devices in mind but they are also used in instrumentation and diagnostic systems, machine manufacturing, construction machinery, auto electronics development, special purpose vehicles and medical equipment.
EA DOG series products are available in many different versions from stock in quantities of 1 or more. Availability is guaranteed for up to 10 years.

Here’s the link for the corresponding data sheet.

The customized EA 9780-3USB evaluation kit can be supplied to support application development for the display. ELECTRONIC ASSEMBLY developed the kit to speed up commissioning and help users familiarize themselves with the EA DOG displays. Individual character sets and a font editor are available on a USB flash drive as an accessory. DOG displays can also be supplied in other sizes and dimensions as text (1x8 to 4x20 characters) and graphics versions (1.7 to 3.9 inches).