AVR-Chat

Hi Jeff,

Thanks that's an interesting pointer. Advantage is that its ready made
and basically plug&play. Then again that's it's drawback too. It's
closed and I possibly can't reprogram it or add stuff like my temp &
humidity sensor. And it doesn't have the 'I made this' factor. ;-)

It's a good fallback position though. 

Thanks!
Gert

--- In AVR-Chat@yahoogroups.com, Jeffrey Engel <jengeltx@...> wrote:
>
> 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@...> wrote:
> From: drgert1 <drgert1@...>
> Subject: [AVR-Chat] Getting started on AVR with USB
> To: AVR-Chat@yahoogroups.com
> Date: Thursday, September 4, 2008, 7:13 PM
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>             Hi All,
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> I just joined the group. 
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> My background is from amateur astronomy. Stuff like this:
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> http://www.trivalle ystargazers. org/gert/ mercury_transit2
006/image_ 04.jpg
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> I control most of my telescope stuff and imaging equipment from the
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> laptop via USB & serial.
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> When I'm mobile I use batteries to power the equipment.
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> 
> 
> Now what has that todo with AVR? I am looking for some data gathering
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> via USB. I am interested in voltage measurements to monitor my
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> batteries and weather data. (Temperature and dewpoint would be nice)
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> There's a nice sensor for this:
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> 
> 
> http://www.sensirio n.com/en/ 01_humidity_ sensors/06_ humidity_
sensor_sht75. htm
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> 
> 
> All I need is a USB based little blob with an MCU inside to get the
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> 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
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> good spec like built in USB and ADC. (like ATmega16U4, AT90USB162 etc)
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> 
> 
> There is this eval board:
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> http://www.digikey. com/scripts/ us/dksus. dll?Detail?
name=AT90USBKEY- ND
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> 
> 
> But I think it's too big and clumsy. With USB integrated into the mcu
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> the whole thing should almost fit into the USB plug. Just have the
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> wires to the battery sticking out. (This boad is my fallback position
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> however if nothing else materializes)
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> 
> 
> I am looking for something the size of a USB flash stick. Preferably
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> ready made as an eval system for the MCU. Attaching the sensor and
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> input for voltage measurements should be easy. I would not like to
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> make my own pcb. 
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> Any ideas are appreciated.
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> Thanks,
> 
> Gert
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