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15x7 Display - This project is what you have been waiting for. Remember the
scrolling signs you see in shops and on advertising billboards? Now you can program
your own moving sign with all the effects you can think of. We have provided a blank
canvas in the form of a scanning screen 15 LEDs by 7 LEDs and on this you can put
anything you like. Of course this is not a two-day job. You have to learn how to
program ....(design added 04/09) |
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16x16 LED Matrix and Driver - (circuit added 9/04) |
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2 Wire LCD Interface using PIC16cf84 - (schematic / circuit design added 9/02) |
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20 dB Amplifier and High Current Balanced Line Driver - AS023 Jenson Transformer
Application Note (app note7/02) |
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2-Way Multiplexed LCD Drive and 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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3-Colour Display using Bicolour LEDs - (electronic Circuit / Schematic added
10/04) |
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4 Channel Timer using Atmel 89C4051 and MAX7219 display Driver - using Atmel
89C4051 and MAX7219 display Driver (circuit / schematic design added 7/06) |
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5301 Wideband Fuel Mixture Display - (circuit / schematic design added 6/06) |
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5x7 Display - Sit back and take a big breath. You are about to take part in one of
the best microcomputer (microprocessor) projects you have seen. It uses a PIC16F84
micro and you will be shown how to program the chip to create quite amazing effects.
It's a simple project and you will be starting at the beginning of programming, so
don't worry if you have never worked with a microprocessor before....(added circuit
05/07) |
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7 by 10 LED Moving Sign 27c512 Eprom - (electronic circuit added 4/05) |
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7 Segment LED Counter (Aaron Cake) - (circuit added 7/02) |
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7 Segment Rolling Display using PC - It is very interesting and convenient to be
able to control everything while sitting at your PC terminal. Here, a simple hardware
circuit and software is used to interface a 7-segment based rolling display. The
printer port of a PC provides a set . (added 10/05) |
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72 LED Clock (Bowden) - In the circuit above, 60 individual LEDs are used to
indicate the minutes of a clock and 12 LEDs indicate hours. The power supply and time
base circuitry is the same as described in the 28 LED clock circuit above. The minutes
section of the clock is comprised of eight 74HCT164 shift registers cascaded so that a
single bit can be recirculated through the 60 stages i....(circuit added 7/02) |
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7-Segment Display - This experiment is more of an introduction to the 4511
decoder/display driver IC than it is a lesson in how to "build up" a digital function
from lower-level components. Since 7-segment displays are very common components of
digital devices, it is good to be familiar with the "driving" circuits behind them,
and the 4511 is a good example of a typical driver IC.... (circuit add 6/07) |
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8x8 Animated LED Signboard - The firmware supplied in current sourcecode archive
is VERY BASIC. I do intend to draw more patterns. However, a vast workload coupled
with possible emigration has put finished firmware on hold. Please do go ahead and
build this circuit though supplied firmware is fully functional. You can have hours
of fun designing your own patterns and effects! Uses PIC16F84 (project added 10/06) |
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9 Second LED Relay Timer - This circuit provides a visual 9 second delay using a 7
segment digital readout LED. When the switch is closed, the CD4010 up/down counter is
preset to 9 and the 555 timer is disabled with the output held high. When the switch
is opened,....(circuit / schematic design added 6/06) |
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A Novel Process for Vacuum Fluorescent VF Display Drivers - National
Semiconductor Application Note (app note added 2/06) |
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AB-50 / LCD Monitor Applications - Fairchild Application Notes / (app note added
6/06) |
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AB-51 / LCD Monitor Applications - Fairchild Application Notes / (app note added
6/06) |
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ABR-42015 / Reconstruction Filter Selection for HDTV and VGA/Application -
Fairchild Application Notes / (app note added 6/06) |
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Active Matrix LCD Bias Supply Operates from Battery Input - 02/03/00 EDN Design
Ideas / (added 6/06) 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, a battery .... |
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Air display - A Noisemaker without noise. A simple rotating display. Just spin
and enjoy. While the "Air display" is rotating, it writes the message on the air.
Because the "persistence of the vision", you will be able to read the message.
Circuit, see JP6293E.gif. Download the HEX file - Program the PIC with JP6293E.hex.
Algorithm - Build your own Air Display using code.txt....(electronic design added
06/07/08) |
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AN-1127: LVDS Display Interface - National Semiconductor Application Note (app
note added 2/06) |
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AN-1234: RSDS™ Flat Panel Display Design Guidelines Part 1 - National
Semiconductor Application Note (app note added 2/06) |
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AN-1237: Rsds™ Flat Panel Display Design Guidelines Part 2 - National
Semiconductor Application Note (app note added 2/06) |
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AN14 Transistor Considerations for LCD Backlighting: High Efficiency DC-to-AC
Conversion - 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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AN-350: Designing an LCD Dot Matrix Display Interface - National Semiconductor
Application Note (app note added 2/06) |
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AN-354: Ask the Applications Engineer 1-Multi Troubles - AN-354 Analog Devices
Application Notes (app note added 6/06) Addresses problems often encountered with
LOG Circuits, Time Division Analog Multiplexing, and ADC Power Strobing |
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AN-378: A Novel Process for Vacuum Fluorescent VF Display Drivers - National
Semiconductor Application Note (app note added 2/06) |
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AN-4143 / LCD Backlight Inverter Drive IC FAN7310 - Fairchild Application Notes /
(app note added 6/06) |
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AN-42010 / Theory and Application of the ML4874 and ML4876 LCD Backlight Controller
ICs - Fairchild Application Notes / (app note added 6/06) |
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AN-42035 / Component Video Filtering Using the ML6420/ML6421 - Fairchild
Application Notes / (app note added 6/06) |
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AN557: Four Channel Digital Voltmeter with Display and Keyboard - Microchip
Application Note Published 27-May-05 (app note added 6/06) |
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AN-577: Layout and Grounding Recommendations for Touch Screen Digitizers - AN-577
Analog Devices Application Notes (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 and 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-738: Using the AD7877 Touch Screen Controller and the Intel PXA250 Processor Under
Windows CE.NET - AN-738 Analog Devices Application Notes (app note added 6/06) |
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AN-753: Configuring the AD7877 - AN-753 Analog Devices Application Notes (app
note added 6/06) |
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AN-766: Using the Noise Reduction Feature on the AD7877 - AN-766 Analog Devices
Application Notes (app note added 6/06) |
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AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package LFCSP
- AN-772 Analog Devices Application Notes (app note added 6/06) |
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AN-953: LCD Triplex Drive with COP820cj - National Semiconductor Application
Note (app note added 2/06) |
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AN-990: Radiated Emissions and CRT Displays - National Semiconductor Application
Note (app note added 2/06) |
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Animated LED Signboard PIC16C84 - (electronic circuit added 4/05) |
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Ask the Applications Engineer 1-Multi Troubles - AN-354 Analog Devices Application
Notes (app note added 6/06) Addresses problems often encountered with LOG Circuits,
Time Division Analog Multiplexing, and ADC Power Strobing |
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AT89C2051/4051scanning 7 Segment Display and Keypad - (circuit added 7/02) |
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Audio/Video 4-pole jack connector for camcorders and some other devices -
….(circuit design added 03/08) |
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Audio/Video Distribution Amplifier - With the amount of equipment in home
entertainment centers today the need to be able to vary the gain of the audio or video
signal is needed. I found this particular circuit helpful when used in conjunction
with the Universal Descrambler and a Stabilizer circuit I built for making copies of
video tapes....(electronic schematic / circuit added 05/05/05) |
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AVR 2x16 LCD and 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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AVR Dotmatrix - avrDotmatrix - Is a 5x7 LED Matrix Display controlled by a ATMega8
to display scrolling text, time or temperatures. The pattern is generated with
multiplexing the 5 matrix columns and setting the correct row bits. This projects is
still in development and i'm gonna add a temperature sensor (LM75)...(circuit added
02/09) |
