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Barker Code-Locked Loop Synchronous Demodulator using ATtiny2313 microcontroller

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A simple, low component count phase locked loop that locks onto and detects the amplitude of an incoming baseband 7 bit Barker code using a switched resistor demodulator that is driven directly by a microcontroller’s output pins. Balanced modulators using resistors and a microcontroller’s output pins. Locking into oncoming Pseudo-noise (PN) stream. Microcontroller modulates its […]

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PCB Exposure Box with Countdown timer using ATMEGA8 microcontroller

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Tired of spending hours and hours in wire soldering? Do your circuits look ugly and you are looking for a way to produce professional-like PCBs? Then you had better try photoetching. And the first step to do that is to have the right equipment that is an Automated Exposure Box. Moreover if you like tinkering

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Dot Matrix Display Applications using AT89C2051 microcontroller

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4 Piece AT89C2051 micro-controller matrix display has a project carried out with proteus isis simulation and has asm hex code files Atmel AT89C2051 ‱ Compatible with MCS Âź-51Products ‱ 2K Bytes of reprogrammable Flash Memory – Endurance: 10,000 Write / Erase Cycles ‱ 2.7V to 6V Operating Range ‱ Fully Static Operation: 0 Hz to 24 MHz

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EEPROM Driver for AVR with RAM using ATtiny15 microcontroller

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Download the test program with driver:  i2cm030710F.asmI had been putting off writing a driver for some 24LC64 and 24LC256 EEPROMS I was thinking about using, when I came across a temperature logger application written by Sean Ellis. The Temperature logger was posted on on www.avrfreaks.net on January 10, 2002, project ID 49.  The original application

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Atmel Bascom avr 8051 project, the circuit archive using AT89S8252 microcontroller

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Atmel series (AT89C2052, AT90S2313, AT89S8252, etc.). wide range of PIC microcontrollers with an archive of high-quality circuit atmel version you can find a lot of. Usb, alarm, lcd, nokia 3310, nokia 6100, display, LED, sms, telephone and so on. schema files to Protel PCB circuit has a lot of Visual Basic programs in some projects there is a need

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EPROM adapter for ATMEL 89 Series Flash Microcontroller Programmer Ver 2.0

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Devices The EEprom programmer software supports the following devices. 28C16 28C256 28C17 29C256 28C64 Hardware Diode D1 and resistor R1 provide the VDD isolation when programming the 24 pin devices. The jumper J3 must be shorted for 24 pin devices, and open circuit for 28 pin device programming. Following EEPROMs are pin compatible with their

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AVR Digital Hum Nuller using ATmega168 microcontroller

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This ATmega168-based digital comb filter built to clean a realtime audio signal. It can remove the ubiquitous 60Hz (50Hz in some countries) hum noise caused by power lines and household electrical wiring. Since the noise is not strictly sinusoidal it is necessary to remove all harmonics of 60Hz, and that is what this filter does.

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