AVR-Chat

Chuck I have the board you need.

It is my own design. It is for rapid prototyping and small custom runs.

Atmega168, two electromech power relays, buffered PWM out, on-board voltage regulation, lots of digital I/O, in-circuit programming, LED redouts, four pushbutton input (or use other inputs), I/O pins around edge of PCB. Can be connected to Hitatchi LCD instead of LEDs, screw terminal blocks and a prototype area for additional circuitry such as I2C parts, or what have you.  The board has no RS485, but the proto area can accomodate whatever you want to add. Design is done. Board are professionally fabbed by Advanced Circuits (Colorado). I am in New York.  I had dozens of boards, I need to reorder now. I can send you photos, schematics, assembly drawings, bill of materials to help you decide if this board will suit your needs.

Rick


--- On Tue, 9/16/08, Chuck Hackett <egroupscdh@up844.us> wrote:
From: Chuck Hackett <egroupscdh@up844.us>
Subject: [AVR-Chat] AVR Prototype board
To: AVR-Chat@yahoogroups.com
Date: Tuesday, September 16, 2008, 11:36 AM










    
            I have a project (Signals for a 7.5” gauge railroad) that I need to get up and running quickly.



I am working on the design of a custom board based on an ATMEGAxxx to support a wide range of functionality but I do not have time to layout and produce the boards (Eagle, toner transfer, etch, stuff) I need for a minimal system up and running in the time I have.



What I’m looking for is an inexpensive prototyping board (in the USA) that I can get to support my initial requirements.  I figure I’ll need 8-10 of them.



Initial requirements:



1 ATMEGAxxx processor (ATMEGA168 desired, but about any AVR that supports the functions below would work).

2 JTAG support (for breakpoint debugging, loading, etc.)

3 At least 3 digital I/O

4 At least one PWM output

5 At least one analog input

6 On-board regulator



Desirable extras:

- RS-485 I/O (or serial pins to wire a Maxim RS-485 chip to)

- Additional digital I/O (up to 16), analog inputs (up to 3)

- On-board drivers for the digital I/O capable of sinking 10-15 ma (driving 10 mm LEDs)

- Did I mention inexpensive ☺ …



I know that there are many more parameters you need/would like to know but, without getting into an extended description, that’s the basics.

 

Cheers,



Chuck Hackett

"Good judgment comes from experience, experience comes from bad judgment"

7.5" gauge Union Pacific Northern (4-8-4) 844 http://www.whitetro ut.net/Chuck




      

    
    
	
	 
	
	








	


	
	


      

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