Well-proven graphic displays Bolymin BG series represent a very suitable and cost-effective choice for applications, where we need not only character- but also graphic output.
Series BG from company Bolymin belongs to a group of universal displays with an excellent price / performance ratio. Each type contains some of standard LCD controllers, that´s why it is relatively simple to control them.
Graphic displays naturally provide an advantage of possibility to display any characters and symbols. BG series displays are suitable mainly for applications, where a display serves as an informative interface for example with various values about the status of a measured parameter, including pictograms and other graphic symbols. As these displays don´t comprise powerful graphic processors, they feature a relatively very low power consumption. To a low power consumption also contributes the built-in LED backlight (white or color depending on a type).
Spice it with graphics! – [Link]
If you have used LCDs in projects before you have realized that to use the backlight on a LCD display you need large positive and negative voltages. This circuit will help you create the voltages you need from a simple 2.5V to 6V input. I chose this circuit since many of my projects run off of two AA batteries. The one IC in this circuit, LT3587, generates two positive and one negative high voltage supply.
Here is the circuit.
LCD Display Backlight Power Supply Circuit - [Link]
Visual TFT is a standalone application used for rapid development of graphical user interfaces for TFT displays. Software generates code compatible with mikroElektronika compilers: mikroC, mikroBasic and mikroPascal, for all suported MCU architectures: PIC, dsPIC30/33, PIC24, PIC32, AVR and ARM. Software implements intuitive environment and many drag-and-drop components which can be used for building applications easily and fast.
Visual TFT – Rapid development of GUIs in TFT displays - [Link]
Ktulu @ users.ininet.hu/ktulu/ writes:
The heart of the unit is an 8 bit PIC16F74 microcontroller from Microchip. It’s main task is to constantly monitor the room temperature trough a 1–wire digital thermometer IC, a DS1820 from Maxim, and to switch a relay on or off, that controls the gas boiler accordingly.The system also features a color LCD, which was removed from an old mobile phone, a few LED’s, an LDR sensor for night mode and a couple of pushbuttons.
PIC16F74 – Room thermostat with colour LCD - [Link]
EA DIP series displays from company Electronic Assembly provide an uncommon possibility to choose a graphic or a character display without a change of your device´s hardware.
A quality display with a high contrast and an automatic temperature compensation, easy mounting by soldering of pins into a PCB, a display maximally utilizing the module size – without overhangs and mounting openings, compatibility with industry standard graphic controllers (HD44780), low power consumption – all these are the features saying in favor of EA DIP series displays. To these benefits of EA DIP series, we can also add another uncommon feature – a possibility to change a character display for a graphic one without a change in hardware (at types of the same size). EA DIP series consists of several types as you can see in the following table.
Types with the same dimensions, for example the graphic EA DIP122J (122×32) and character EA DIP162J (2×16) and EA DIP203B (4×20) feature the same pinout, that´s why it is possible to use these types into the same PCB (at a modification of firmware of your device and meeting requirements of given types). It provides an elegant way how to create various versions of a product or to maintain a possibility of “upgrade” of your device from a character- to a graphic display.
Detailed description will provide you the EA DIP flyer, as well as datasheets at particular types. A novelty in our portfolio is the type EA DIP203B, which will replace the EA DIP204.
In case of interest in Electronic Assembly products, please contact us at firstname.lastname@example.org.
EA DIP displays – a free hand at a choice of a character or graphic display - [Link]
Embedded Lab has started a new tutorial series on Netduino programming and interfacing. This is the second tutorial in the series where interfacing between an HD44780 based character LCD and Netduino Plus is discussed.
Netduino and LCD interfacing tutorial – [Link]
The Centre of Microsystems Technology (CMST), imec’s associated laboratory at Ghent University (Belgium), has developed an innovative spherical curved LCD display, which can be embedded in contact lenses. Unlike LED-based contact lens displays, which are limited to a few small pixels, the new LCD-based technology permits the use of the entire display surface. By adapting the patterning process of the conductive layer, this technology enables applications with a broad range of pixel number and sizes, such as a one pixel, fully covered contact lens acting as adaptable sunglasses, or a highly pixelated contact lens display. [via]
Breakthrough in Augmented Reality Contact Lens - [Link]
In a wide portfolio of development tools for displays from company Electronic Assembly can be found evaluation boards for development of applications with eDIP displays family, including a connectivity via all common industrial interfaces.
Everyone who already ever designed his own development board knows, that it takes a lot of time to design, construct and assemble such a board. That´s why a ready-made development board at an affordable price is always a big simplification. EA EVALeDIP320-TFT70 development kit is a beautiful example of such a set, as it provides an immediate access to a full display functionality and it comes rich-equipped. At the same time it meets a criterion of an acceptable price, because the difference in price of the development board and the display itself is approx. 50 Eur only.
EA EVALeDIP320-TFT70 enables to develop applications in an elegant way and to use all possibilities of 5.7“ and 7“ Electronic Assembly displays. The development kit contains an evaluation board (USB), 7″ display with a touch panel, CD with SW and drivers, 5 small PCBs enabling a communication through industrial interfaces (RS232, RS485, I2C, SPI and RS232-CMOS level), USB cable and a line adapter. The development kit enables to also develop applications, which use input/output pins of the display – 8 push-buttons and 2 trimmers enable to control I/O pins and simulate analog signals, while 8 LEDs indicate logic levels at the corresponding outputs. Another LEDs indicate data traffic and a beeper/ loudspeaker serves as a touch feedback. An advantage of Electronic Assembly displays is, that black-anodized aluminium frames (bezels) are available for many types.
Further information will provide you the EA EVALeDIP320-TFT70 and EA eDIPTFT70-A datasheets. A 5.7” display will be available in the nearest period. In case of interest in Electronic Assembly products, please contact us at email@example.com
Simulate, test, develop – Electronic Assembly evaluation tools will help you - [Link]
I like fast things. And good code. Often, they go hand in hand. This is a demo of my optimized library, LiquidTWI, pushing data out to the LCD almost as fast as the “native” (direct) interface with LiquidCrystal. Only this time, using just 2 wires (TWI).
LiquidTWI2 – A Lean, High Performance I2C LCD Library for Arduino - [Link]
New intelligent display eDIPTFT70 from Electronic Assembly provides all what its smaller relatives and something in addition – the size.
With the 7” size and an 800 x 480 pixels resolution, it can display a relatively considerable amount of information. Similarly like other member of family eDIP (eDIPTFT32 a eDIPTFT43), even eDIPTFT70 eliminates the need of demanding and time-consuming programming at pixels level.
All the control of the display is done on commands level, thus to display text, graphics and many other symbols is exceptionally easy and simple. Control by commands substantially accelerates development and shortens the time to market. At an application development it is possible to use predefined functions, symbols and geometric functions, bargraphs, frames, buttons and many other. In general eDIPTFT70 offers almost the same functions like other eDIPTFT family members, including almost immediate start within a few 1/10 of second.
Single +5V supply, analogue touch panel with a variable raster and software-dimmable backlight brightness contribute to the versatility of usage. In many of applications also 80 various short jingles for audio feedback can be useful. Even eDIPTFT70 contains 3 communication interfaces – RS232, I2C and SPI, that´s why it can be connected to virtually any device. Further information will provide you the eDIPTFT70 datasheet.
New 7″ eDIPTFT70 display – when the size matters - [Link]