‘AVR

RS-232 to 100 MHz RF desktop channel adapter using ATtiny2313 microcontroller

Downloads AVR Studio assembler source code 2jun2002version.asm AVR Studio hex file 232lin.hex This is an adapter that allows a terminal to communicate via a 100 MHz data channel with peripherals on the same desk top. Keystrokes from the terminal are are received through the RS-232 connection and sent through the 100 MHz RF data channel.

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A Low Power PLL FM Transmitter using LMX1601 and ATtiny2313 microcontroller

An LMX1601 Phase locked loop, a discreet  FET VCO, and an AVR micro controller combine to make a stable, easy to use monophonic FM transmitter that includes a an audio activated switch that turns the transmitter on only when its being used. Notice: Before operating a radio transmitter, find out what kind of transmitter operation,

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AVR Programming – a Step by Step Tutorial

Introduction This is a complete AVR Tutorial, including avr programming in a very basic & organized way, We will go through by following items. What is an AVR? Using Mac and Windows How AVR programming works Choosing a programmer, to burn the code. Using AVRDUDE Prerequisites This set of notes does have some prerequisites. It requires two important

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Dutchtronix AVR Oscilloscope Clock using Atmega328 microcontroller

Hardware features: Connects to your analog scope in X-Y mode using BNC cables or probes (1x, 10x) Uses the Atmel AVR Atmega328p with 32KB flashmemory On board 5V power regulator for use with user provided wall adapter (8-15V DC center positive) Power plug (5.5mm outside diameter) included On-board Real-Time Clock with 32.768kHz crystal and battery

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I2C Tiny USB using ATtiny45 microcontroller

Attach any I2C client chip (thermo sensors, AD converter, displays, relais driver, …) to your PC via USB … quick, easy and cheap! Drivers for Linux, Windows and MacOS available. The i2c-tiny-usb project is an open source/open hardware project. The goal of i2c-tiny-usb is to provide a cheap generic i2c interface to be attached to

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MMC/SD/SDHC AVR Interface using ATMega8 microcontroller

MMC/SD/SDHC card library This project provides a general purpose library which implements read and write support for MMC, SD and SDHC memory cards. It includes low-level MMC, SD and SDHC read/write routines partition table support a simple FAT16/FAT32 read/write implementation The circuit The circuit which was mainly used during development consists of an Atmel AVR

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LC Determination by Resonant Frequency Measurement using microcontroller

A well known L/C measurement circuit is pressed into service to make a bare bones measurement circuit. Download the AVRStudio assembly source: lgm031227I.asm. Download the AVRStudio hex file: lgm031227.hex. Left-to-right: The 5 volt regulator, the LM393 oscillator (a 0.047 uf capacitor is mounted on the LC circuit connector), the AT90S2313, and the serial connector to

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