JED AVR200 Single Board Computer using the ATmega32 CPU

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AVR200 Project board now in production AVR200 SBC

The $A90 AVR200 kit (plus GST), ($A185 built and tested, plus GST) is a low cost ATmega32 based board for industrial/educational/hobby applications.

This board features in two feature articles in Silicon Chip magazine:
Part 1
Part 2

Protected I/O is provided from all ports to screw terminals and it also provides a RTC, SPI, RS232, buffered I²C bus (and an RS485 option).

The kit features in June/July 2005 Silicon Chip (Australia) magazine P84/91.

It is all through-hole construction and easy to build without SMT hassles.

See: Large AVR200 Photo

NEW! GO TO: JED AVR256 Single Board Computer using the ATmega2560 CPU

JED Microprocessors Pty Ltd.
173 Boronia Rd Boronia 3155, Vic, Australia. Phone: +61 (03) 9762 3588 Fax: +61 (03) 9762 5499.

Email for orders or technical queries: jed@jedmicro.com.au

Availability: AVR200 kits and fully assembled Rev 0 boards are now shipping from JED. (Rev 1 PCBs are shipped if RS485 option is ordered.)

An accurate voltage reference option and an RS485 option is available, and the "standard" build has 8 analogue inputs to Port A, 11 protected digital inputs (Ports B and D), and 9 FET outputs (Ports C and D).

A serial RS232 port is standard to a D9 connector, as is a buffered I²C port and a battery-backed RTC.

Options:

A precision reference for the analog port can be added to standard build Rev 0 boards;
Eight extra FETs can be added to Port A, replacing the eight analog inputs;
Four extra FETs can be added to Port B, replacing the four digital inputs;
Six output bits on Port C can become protected inputs, replacing the six FET outputs;
Three output bits on Port D can become protected inputs, replacing the three FET outputs; and
(On Rev 1 PCBs), an optional RS485 interface can be added, with a multiplexer for TX/RX switching between RS232 and RS485.

When ordering, please indicate whether you need the MegaLoad utility pre-loaded into the CPU you are ordering.
If you do NOT, you have to use an AVRISP or a STK500 (see below).

All boards are supplied with two CDs:

One is a JED disk with all circuits, layouts, assembly instructions, test program, test instructions, and sample code which exercises all parts of the board, written in BASCOM Basic and CodeVision C. Setup instructions for programming systems (IDE) for BASCOM and CodeVision are included. Also is MegaLoad and a sample setup and Makefile for WINAVR, a PC environment, which allows use of the Gnu free toolkit for Gnu C.
One disk is supplied by Atmel, and is the complete “Software and Technical Library” which includes:

the “Studio” integrated development environment/assembler/simulator/programmer driver;

Data sheets for all Atmel CPU products, (including the ATmega32 CPU, 345 pages);
All Atmel application notes, user guides, source code examples, etc are included.

Following is a series of files on the AVR200 board. Most are in PDF format, but the price list and order form is in both PDF form (for faxing or mailing) and in Word form (for filling-in electronically and emailing to JED.)

Atmel web site for CPU data sheet (344 pages): ATmega32

Application notes, third party resources (compilers, etc): Atmel AVR

A variety of other AVR-relevant documents, (including a 148 page AVR instruction set user guide): AVR docs

AVR200 Schematic (colour)
AVR200 Schematic (B&W)

AVR200 Parts layout and connections

AVR200 Board technical description

AVR200 Board assembly instructions

AVR200 Software development options
(More software downloads, MegaLoad, compiler links, still etc to be added.)

AVR201 32Kbyte to 256Kbyte FRAM memory board (piggyback) for data logging applications.

AVR202 Prototype board schematic and layout (for user hardware add-ons)

AVR200 Price list/order form (March 26th 2006) (PDF)
AVR200 Price list/order form (March 26th 2006) (Word DOC file)

Available now ... a set of I²C expansion boards for the AVR200. Up to 16 device addresses, allowing up to 128 I/O bits can be addressed and controlled by the AVR200 (See Floribots below):

AVR210, a flexible LCD display interface (with a 2 by 20 PLED green/yellow light emitting organic LED display, or a conventional 4 by 20 backlit LCD text display). Layout/schematic PDF

AVR211 Keyboard scanner, for a 12 or 16 key keyboard, with key-press interrupt to CPU. Layout/schematic PDF
KEY200A 16-key re-legendable keyboard (stick-on, with slots for paper key labels to be slipped in before sticking down.)

AVR212 Eight power FETs driven from I²C bus. LEDs show status of all outputs. Layout/schematic PDF Detail photo

AVR213 Eight logic, switch or voltage inputs. LEDs show status of all inputs. Layout/schematic PDF Channels can have pull-down resistors for voltage inputs, or can have pull-up inputs for switch or opto-isolators to ground (users can change pu/pdn mode). Detail photo.

(Futures in design include multiple servo actuator drivers and 8 power relay boards.)

Email for orders or technical queries: jed@jedmicro.com.au

Test system example ... how to build a test system with LOTS of I/O

The system shown in the photo below shows how to start with a plank of wood and build a end-of-line test system for testing manufactured cable/interconnect systems. The system uses an AVR200 CPU (far right) as the "brain" and a bank of four AVR212 FET output boards (red LEDs below) and eight AVR213 input boards (green LEDs below).

The program in the AVR200 drives a LOW onto each of the 32 inputs of the system under test in various combinations, and then the 64 inputs lines are read in by the AVR213s to the AVR200.

A 32-line table sets up the expected responses, and if an error occurs due to a short, open or swapped line, the expected results differ from the table. If it all agrees a green LED lights. If an error occurs, a red LED flashes. This gives immediate results on a production bench test. Any faults are reported over the serial port to a PC, listing pin numbers and faults found. (The 10-way grey ribbon I²C cable can be seen in the photo looping through all twelve expansion boards.)

The driving software is available to interested inquirers as an example of how to program the I/O boards on a AVR200 I²C expansion bus from BASCOM.

Adrians tester

"Floribots" at the National Gallery of Australia

Here are some images and a movie of the Installation of "Floribots" at the National Gallery of Australia.
Floribots has attracted a lot of attention and has appeared in the newspaper and on TV.
About 100,000 visitors are expected to the exhibition.

Congratulations: Geoffrey has just won the "$4000 Macquarie Bank people's Choice" award at the National Sculpture Prize and Exhibition for the Floribot project. Well done, Geoffrey!

Control hardware: AVR573, AVR212 x 16
Photos: Floribots active Floribots detail
Movie: Floribots in action
Description: Floribots.doc Floribots.pdf

Link to: National Gallery of Australia "Floribots"

Floribots is an interactive kinetic sculpture by Geoffrey Drake-Brockman. It was shortlisted for the 2005 National Sculpture prize and is currently being exhibited at the National Gallery of Australia. Floribots incorporates a JED 573 microprocessor board with buffered I²C daughterboard and RTC along with sixteen 212 I²C FET output boards. It runs a compiled basic control program and perceives the outside would via eight passive infrared sensors.
More details on the artist at www.drake-brockman.com.au

Geoffrey Drake-Brockman said "I was looking for a solution to control my electromechanical sculpture which required 128 separate channels of FET output. I wanted to mount all components inside the sculpture so the system would be fully embedded. After a long search I was delighted to find JED Microprocessors in Victoria. JED had exactly the right set of products for my application and the solution was less expensive that any of the other alternatives I had explored and had the advantage of a simple bus connection between satellite control modules. A huge bonus while developing my application was the ability to call JED and get informed helpful technical support, often from the person who laid out the board or wrote the test code (or both). This is so much better than dealing with an imported product with little or no support locally. Thank you to Luke and Ed at JED Micro!"

AVR-ISP mkII, In-System Programmer for all AVR microprocessors, in stock, $A75 + GST

The AVR In-System Programmer is used for field upgrades of existing products using the Atmel AVR Architecture. The In-System Programmer is based on the STK500 Hardware and Software. It supports all in-System Programmable AVR devices. It is supported by all AVR compilers (CodeVision, Imagecraft C, BASCOM, AVR Studio). Because it runs from the PC USB port, it avoids problems with printer port modes (ECC, Std, etc) and operates under all PC operating systems with USB support.

It is supplied with a 6-pin programming cable, so is suitable for all the recent JED boards and modules shown above.

(Because a 10-pin cable header is not provided, there is a problem in interfacing to older boards with the 10 pin ISP header, or boards like the JED 585, which has a 14-pin conn ector, formed by adding 4 extra pins to the Atmel 10-pin standard. We are quite unhappy that Atmel has dropped the 10-pin support without any warning, and will soon make available an adapter board to convert the 6-pin cable to the 10 and 14 pin standards. Contact JED for availability.

A full data sheet is available for download at: AVR-ISP mkII user guide

Note: The older serial RS232 port AVR-ISP is no longer available. It has been suddenly deleted, without warning by Atmel.

AVR assistance from JED

If you are interested in using AVR processors for any project, small or large ... email or call Ed Schoell at eschoel@jedmicro.com.au with your comments or questions. (03 9762 3588)

JED offers a design service for boards or systems based on AVR, Xilinx gate arrays and a range of other electronic hardware and software projects. We have a group of standard circuit and gate array design modules, with matching software drivers developed during our time creating the Little Blue Computer and friends and we have designed a number of custom systems based on AVR using this experience.

AVR
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(Updated Dec 21st 2006)