AVR-Chat

It's not an AVR product (that I know of), but maybe something like this:

http://www.dataq.com/products/startkit/di148.htm

Jeff
Happiness is: positive intake manifold pressure.

--- On Thu, 9/4/08, drgert1 <drgert1@yahoo.com> wrote:
From: drgert1 <drgert1@yahoo.com>
Subject: [AVR-Chat] Getting started on AVR with USB
To: AVR-Chat@yahoogroups.com
Date: Thursday, September 4, 2008, 7:13 PM










    
            Hi All,



I just joined the group. 



My background is from amateur astronomy. Stuff like this:

http://www.trivalle ystargazers. org/gert/ mercury_transit2 006/image_ 04.jpg



I control most of my telescope stuff and imaging equipment from the

laptop via USB & serial.



When I'm mobile I use batteries to power the equipment.



Now what has that todo with AVR? I am looking for some data gathering

via USB. I am interested in voltage measurements to monitor my

batteries and weather data. (Temperature and dewpoint would be nice)

There's a nice sensor for this:



http://www.sensirio n.com/en/ 01_humidity_ sensors/06_ humidity_ sensor_sht75. htm



All I need is a USB based little blob with an MCU inside to get the

data from sensor or via ADC and send it to the PC. A little program on

the PC would display the data. There are AVR devices that have pretty

good spec like built in USB and ADC. (like ATmega16U4, AT90USB162 etc)



There is this eval board:



http://www.digikey. com/scripts/ us/dksus. dll?Detail? name=AT90USBKEY- ND



But I think it's too big and clumsy. With USB integrated into the mcu

the whole thing should almost fit into the USB plug. Just have the

wires to the battery sticking out. (This boad is my fallback position

however if nothing else materializes)



I am looking for something the size of a USB flash stick. Preferably

ready made as an eval system for the MCU. Attaching the sensor and

input for voltage measurements should be easy. I would not like to

make my own pcb. 



Any ideas are appreciated.



Thanks,

Gert




      

    
    
	
	 
	
	








	


	
	


      

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