The AVR RISC microcontroller family is made by Atmel Corp. It uses a RISC core running single cycle instructions, and a well defined I/O structure that limits need for external components. Some features in AVR devices: internal oscillators, timers, UART, SPI, pull-up resistors, pulse width modulation, ADC, analog comparator, watch-dog timers. The architecture was created at the Norwegian Institute of Technology (NTH), by two students: Alf-Egil Bogen, Vegard Wollan, and developed further at Atmel Norway AS, a subsidiary founded by them. The chip is supported by Atmel, and by a vibrant, large, and growing user community, which provides free projects, software, tutorials, and much other assistance.

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Official product information from Atmel Corp. Include overview, technical specifications, details of application support, and information about various associated tools and software.
Atmel AVR
Growing article, with links to many related topics. [Wikipedia]
The AVR Assembler Site
Descriptions, tutorials, many code samples: application notes with commented source code.
AVR Butterfly and Beginners Site
The Butterfly is a credit-card sized demo board from Atmel Corp. It is feature-dense and low cost. Descriptions, tutorials, forum, block diagram, primer, many code samples: application notes with commented source code.
AVR Freaks
News in Weblog format, links, forum, tutorials, articles, specifications; devices, tools, projects, vendors. Some areas need registration.
AVR Libc
Goal: high quality C library to use with GCC on Atmel AVR microcontrollers. Together, avr-binutils, avr-gcc, and avr-libc are the core of the open source toolchain for AVR.
AVR Microcontroller Projects
Many projects, tutorials; tools, book list, photo gallery, links.
Introduces assembly programming language for Atmel AVR processors (AT90S) with practical examples. English, Deutsch.
AVRButterfly: AVR Butterfly and Beginners Group
Email forum at Yahoo Tech Groups.
Dick Cappels' Project Pages
Many projects using microcontrollers (AVR, ATMega8, ATmega163, ATtiny12, ATtiny2313, AT90S1200A, AT90S2313, AT90S8515/ATMEGA8515), analog, RF, and all 3 mixed; much free information.
ECE476 Final Projects
Many electrical engineering student projects, using Atmel ATmega32 AVR chips. Cornell University.
HP InfoTech S.R.L.
Makes CodeVisionAVR C compiler, integrated development environment (IDE), automatic program generator, ChipBlasterAVR in-system programmer, code wizard, for Atmel AVR processors. [commercial]
Linux Development Tools for Atmel AVR
Tool chain development for AVR on Linux: programmer hardware, Linux driver, AVRASM-compatible assembler/linker, debugger, simulator. Theiling Online.
MCS Electronics
Makes BASCOM AVR/8051 Windows BASIC compiler, educational development board, with tutorials, forum; other embedded electronic systems.
AVR tutorials, projects, links; and other science, embedded, biomedical engineering, physics content.
WebRing: AVR
Set of links to websites on Atmel AVR microcontrollers, related projects.
Suite of executable software development tools for Atmel AVR RISC processors, hosted on the Windows platform, has GNU GCC compiler for C/C++. Open source.
Last update:
September 18, 2016 at 5:24:06 UTC
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