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20 Mar 2008

 avr-robot-controller-11.jpg

The AVR robot controller (ARC 1.1) was designed as the base controller for a high school Mini-Sumo robot project. The controller is built around the powerful Atmel ATMEGA16 processor with 16kb of memory running at 8 MHz for an 8 mip processing speed (contrast this with a 20 MHz PIC which has a 3-4 mip equivalent speed or an 8mhz HC11 with about 1/2 mip equivalent speed). A 16 MHz crystal is included to allow doubling of the CPU speed. Pin compatible upgrades are available that double the memory.This board can be programmed with a variety of free or comercial tools such as GNU C compiler, BASCOM basic compiler, Atmel Assembler/simulator, CodeVision C, Imagecraft C. [via]

AVR Robot Controller 1.1 - [Link]

19 Mar 2008

avr_led_game.jpg

David on Robot w/Lasers created a handheld gaming device using an ATMEGA32 and an 8×8 LED matrix. It’s currently running a breakout-style program he wrote and the self contained platform shows a lot of potential. Complete with directional pad and A/B-style buttons, it could be great for those interested in AVR learning and development. (perhaps along the lines of the AVR Butterfly) Hmm, but it could use a catchy name . . . AVR-boy? – nah, too obvious.  [via]

Handheld AVR gaming project - [Link]

18 Mar 2008

xmega_microcontrollers.jpg

It seems that ATMEL do not want to limit the AVR branch with 20MIPS AVR microcontrollers. Recently they introduced new AVR microcontroller family – XMEGA – which is still based on AVR core but has a higher performance along with low power feature. AVR microcontrollers are really optimal where high performance is needed with relatively low code size. Probably XMEGA microcontrollers will fill the gap between standard AVRs and AVR32 microcontrollers.

Better performance with AVR XMEGA microcontrollers - [Link]

16 Mar 2008

atmega_ethernet_board.jpg

If you want to run simple webserver on embedded platform and have plenty of controllable interfaces you should consider on building or purchasing etherrape – AVR enabled Ethernet board.

This fancy board almost doesn’t have SMD elements and can be soldered by anyone with moderate soldering skills. Despite the fact that Atmega644 is interfaced with ENC28J60 Stand-alone Ethernet Controller with SPI connectivity, it also has a list of other valuable built in interfaces:

  • Ethernet and TCP/IP
  • Simple webserver;
  • Linux command line tool;
  • RS232;
  • RS485/422 (half- /fullduplex);
  • Dallas 1wire bus;
  • Infra-red Receiver and Transmitter for RC5 Codec;
  • MCA-25 Handy-Camera with VGA resolution can be attached (approx 10 Euro on ebay), not yet supported by firmware;
  • 2MB Data-Flash memory;
  • I2C;
  • SPI.

Lots of great thing can be done with all these board abilities including webserver, Ethernet converter to RS232, RS485, 1-wire, infra-red, I2C, SPI interfaces. So it can serve as remotely controlled platform or data acquisition board where all readings can be seen on web screen. Project files and firmware can be downloaded from project page. [via]

AVR based multipurpose ethernet board - [Link]


14 Mar 2008

_6-assembled-board.jpg

#6 was designed to be easy to use and very versatile as a development board for students or anybody who wants to learn the art of programing microcontrollers. The board is based on the well knwon Atmega32 AVR micontroller and after you have built and setup your #6 board you will be able to write simple code to control almost anything trough your board. [via]

#6 number six board - [Link]

14 Mar 2008

avr-isp-programmer-parallel-interface1.jpg

This board can be used to program AVR Atmel microcontroller’s from a parallel printer LPT1 using ISP functionality In System Programming. This type of programing is preferred by many people because you don’t need to move the microcontroller to a programing board, you program it directly on the target board. This board is also compatible with PonyProg a well known programing application.

AVR ISP programmer parallel interface - [Link]

13 Mar 2008

avr_music_player_sound_bug.jpg

This is a very simple project demonstrating microcontroller sound generating. It plays audio bit stream generated from MIDI files. MIDI files must be converted with special Perl program (MIDICSV).

Project is made of only three parts: piezo buzzer, power supply (3×15V AA batteries) and AVR Tamega16 microcontroller. MCU runs from internal 1MHz clock – so no external clock sources are needed. It can be easily built quickly on any breadboard. Code is written in AVR-GCC language and can be compiled with WinAVR tools. [via]

Entry level AVR sound player - [Link]

13 Mar 2008

avr_oscilloscope_clock.jpg

This small AVR circuit generates digital time signal that can be displayed on dual channel oscilloscope screen.

Digital clock circuit is based on AVR Attiny2313 microcontroller clocked at 4Mhz. Oscilloscope pattern is generated by using four microcontroller pins as DAC output. All project files are available for download from author site. [via]

AVR digital clock on oscilloscope screen - [Link]

12 Mar 2008

numbersix1.jpeg

#6 is a small, easy to build, inexpensive, bare-bones computer. Like the Arduino, it was designed to easily teach art students about microcontrollers, interactivity, and electronics. It’s only $25 (cheaper than the Arduino) is open source, and uses open source software for programming. It uses a very popular chip (AVR) so there’s a good code library available for it. Check out more at the link below. [via]

#6 microcontroller packs a small punch - [Link]

11 Mar 2008

avr_dds_signal_generator_v2_0.jpg

This is the second version of the AVR signal generator. This time it uses a single sided PCB to simplify the project, and has both offset and amplitude controls. All the source code and schematics are available on the website. Signal generators can be very expensive, this version shouldn’t break the bank. [via]

AVR DDS signal generator - [Link]



 
 
 

 

 

 

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