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128x64 LCD assembly Driver for AT90S2314 - Here you will find a source code to
drive a graphics LCD display 128x64 pixels with AT90S2313.The connections between
LCD and AVR, you will find them to the source code.….(circuit / schematic design
added 6/06) |
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1-Wire 8-bit LCD Reference Design - This application note demonstrates creating a
1-Wire® 8-bit LCD. The code to drive the DS2408 LCD display is also provided. The LCD
used was the Data Vision Model NO: DV-16252-S1FBLY, however any LCD with this Hitachi
44780 based LCD controller chip can be used. (app note added 08/08/08) |
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2 Wire LCD Interface using PIC16cf84 - (electronic schematic / circuit added 4/02) |
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2-Way Multiplexed LCD Drive & Low Cost A/D-Converter using V/F Techniques with COP8
MicroControllers - National Semiconductor Application Note (app note added 2/06) |
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2-Wire LCD Interface using PIC16cf84 - Alphanumeric LCD displays have become very
popular for microcontroller applications because y can add a lot to a project in a
variety of different ways. A text message giving user instructions as well as
feedback can make application seem much more "professional" .... (added 4/05) |
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3 Output TFT LCD Bias Supply with a Boost Regulator-MP1542-DN0005 - Monolithic
Power Systems, Inc Design Note (added 6/06) |
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5W PLL Stereo Transmitter with LCD - Here's PLL FM transmitter circuit from china.
This circuit uses the familiar 2SC1971 for final power amplifier stage. …(electronic
circuit added 08/08/08) |
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A Fourth Generation of LCD Backlight Technology - AN65 Linear Technology This
publication, LTC's fourth effort devoted to LCD backlighting in as many years, treats
subject comprehensively. The text considers lamps, display and layout induced losses,
circuitry, efficiency related issues, optimization and measurement techniques. Twelve
appended sections cover lamp types, mechanical design, electrical and photometric
measurement, layout, circuitry and related topics. |
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A Precision Wideband Current Probe for LCD Backlight Measurement - DN101 Design
Notes (Linear Technology) (app note added 6/06) |
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Active Matrix LCD Bias Supply Operates from Battery Input - 02/03/00 EDN-Design
Ideas: Many active-matrix-LCD applications need multiple voltages for
thin-film-transistor (TFT)bias. Typically, three voltages are necessary: 5V for
column driver; a positive voltage, such as 10V; and a negative voltage, such -5V, for
TFT gate drive, or row driver. For handheld electronic devices,.....(design idea added
11/05) |
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AN14 Transistor Considerations for LCD Backlighting - Zetec Semiconductors
Applications Notes A study of parametric requirements of Bipolar transistors for
self-oscillating resonant "Royer" inverter with respect to LCD backlighting, including
circuit behaviour, voltage ratings of most relevance to ensure optimised device
selection, and compact packaging options (app note added 2/06) |
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AN179: Interfacing a Color LCD Module - (app note added 6/07) |
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AN-350: Designing an LCD Dot Matrix Display Interface - National Semiconductor
Application Note (app note added 2/06) |
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AN563: Using PIC16c5x MicroControllers as LCD Drivers - Microchip Application Note
Published 26-Aug-97 (app note added 6/06) |
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AN587: Interfacing Picmicro® Mcus to an LCD Module - Microchip Application Note
Published 26-Aug-97 (app note added 6/06) |
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AN658: LCD Fundamentals using PIC16c92x MicroControllers - Microchip Application
Note Published 26-Aug-97 (app note added 2/06) |
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AN-673: 2-Way Multiplexed LCD Drive & Low Cost A/D-Converter using V/F Techniques with
COP8 MicroControllers - National Semiconductor Application Note (app note added
2/06) |
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AN-953: LCD Triplex Drive with COP820cj - National Semiconductor Application Note
(app note added 2/06) |
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Audio noise generator drives earphones or small speaker - This is a circuit that
generates white noise, rolled-off to drive earphones or a small speaker. White noise
creates is a "rushing" sound, which sounds something like air rushing by your ear(s).
White noise would be flat with frequency, and since this circuit rolls off within the
audio range, I refer to it as "rolled-off" noise. White (or rolled-off) noise....
(circuit added 6/07) |
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AVR 2x16 LCD & 4x4 keypad driver - A very simple circuit to experiment with
AT90S2313, 2x16 LCD display and 4x4 keypad. The clock based on 4 MHz crystal, but you
can use anyone crystal between 1-4 MHz. The keys with the name "A", "B" ... "F" are
typed to the LCD with numbers 10-16. Because the AVR have only 15 I/O pins we are
working the LCD display with 4-bit databus. The 4 resistors (10K) are to protect the
AVR from the shortcuts as the coloumn of the keypad is change....(circuits added
05/09) |
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Circuit provides effective LCD drive - 09/28/00 EDN-Design Ideas:.....(design idea
added 11/05) |
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Circuit Tricks Increase LCD Contrast - 04/24/97 EDN-Design Ideas: (design idea
added 2/06) |
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Connect a 2x16 characters LCD display to a 4x4 keypad - Connect some 2x16
characters LCD display and 4x4 keypad with AVR microcontroller (electronic design
added 03/04/05) |
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Designing an LCD Dot Matrix Display Interface - National Semiconductor Application
Note (app note added 2/06) |
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Digital Pot Adjusts LCD's Contrast - 02/04/99 EDN-Design Ideas: You can use a
digitally controlled potentiometer for many purposes. In this example, you can use the
device to regulate the contrast of a standard (such as two lines by 40 characters)LCD.
You can use the circuit in Figure 1 in a portable test system, in which you need to
change the contrast of the LCD as a function of the viewing angle. You choose the
contrast setup from a menu and then use up or down buttons with µC IC1 to adjust the
contrast. The µC stores the contrast value in the digital potentiometer, IC2. This
design uses a Xicor 10-k unit (dubbed "EEPOT"), but you could use other devices in the
design. The EEPOT connects to the LCD's VO line. You could connect.....(design idea
added 6/06) |
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Digital Potentiometer Controls LCD Bias - 03/17/94 EDN-Design Ideas: Designers of
pen-based computers can easily relegate some controls that were previously mechanical,
such as switches and potentiometers, to on-screen icons. For example, the circuit in
Fig 1 shows one way that digital logic can control the -24V-dc LCD bias using two
general-purpose I/O command lines. The DS-1669 from Dallas Semiconductor.....(design
idea added 11/06) |
