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Last Updated on: Wednesday, November 29, 2017 05:38 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
AN557: Four Channel Digital Voltmeter with Display & Keyboard -  Microchip Application Note Published 27-May-05.....[App Note]
AN-577: Layout & Grounding Recommendations for Touch Screen Digitizers -  AN-577 Analog Devices Application Notes.....[App Note]
AN658: LCD Fundamentals using PIC16c92x MicroControllers -  Microchip Application Note Published 26-Aug-97  (app note added 2/06)
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)
AN-738: Using the AD7877 Touch Screen Controller & the Intel PXA250 Processor Under Windows CE.NET -  AN-738 Analog Devices Application Notes.....[App Note]
AN-753: Configuring the AD7877 -  AN-753 Analog Devices Application Notes.....[App Note]
AN-766: Using the Noise Reduction Feature on the AD7877 -  AN-766 Analog Devices Application Notes.....[App Note]
AN-772: A Design & Manufacturing Guide for the Lead Frame Chip Scale Package -  AN-772 Analog Devices Application Notes.....[App Note]

AN-953: LCD Triplex Drive with COP820cj -  National Semiconductor Application Note  (app note added 2/06)
AN-990: Radiated Emissions & CRT Displays -  National Semiconductor Application Note  (app note added 2/06)
Animated LED Signboard PIC16C84 -  (electronic circuit added 4/05)
Ask the Applications Engineer 1-Multi Troubles -  AN-354 Analog Devices Application Notes.....[App Note]  Addresses problems often encountered with LOG Circuits, Time Division Analog Multiplexing, and ADC Power Strobing
AT89C2051/4051scanning 7 Segment Display & Keypad -  .....
AT89C2051/4051scanning 7 Segment Display and Keypad -  .....
Audio/Video 4-pole jack connector for camcorders & some other devices -  ….(Circuit design added 03/08)
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)
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)
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)
 
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