AVR-Chat

We use one of the Rabbit core modules to control motors and a camera -
the series has a very wide selection of features.  The boards are small, 
powerful and
the price is moderate.



Dave Mucha wrote:

>--- In AVR-Chat@yahoogroups.com, "phyock" <tfcsd@e...> wrote:
>  
>
>>I am looking for a production microcontroller/computer  board that 
>>has 50+/- I/Os with drivers, two RS232 ports, RS485 port, LCD, 10+/-
>>    
>>
> 
>  
>
>>ADCs, 3 DACs, Ethernet, 512K+/- memory. We also want stand-alone 
>>    
>>
>IDE 
>  
>
>>testing and field flash programmable. We use about 20 a month in 
>>small industrial equipment (and prototypes) to drive several motors 
>>(steppers to .5 HP DC). I have used AVR and wanted to see what was 
>>available. If you know of anything similar  or somebody else 
>>    
>>
>besides 
>  
>
>>AVR that is fine. Basically I need a 4"X6" ish board that does 
>>    
>>
>about 
>  
>
>>anything a robot hobbyist would want.
>>    
>>
>
>
>
>I make a small board for the BasicStamp, but it only has 16 I/O Pins 
>and we use 8 for serial contorl.
>
>the 'problem' with what you ask is that trying to drive several 1/2 
>HP motors is going to take a lot of board space and require some 
>pretty hefty heatsinks.
>
>Moving that section off-board would remove a lot of the cost for each 
>dual H-Bridge for steppers.
>
>Ditto for the ADC.   we make a 11 channel SPI bus ADC board as an add-
>on.    Each 11 channels makes it easy to expand without adding the 
>high ADC chip cost into the main board and the 12 bit ADC is better 
>than most 10 bit's on the uC's.
>
>But, the #1 thing you will find is that if you want to use screw 
>terminals, you need to add up the width.  at -.2" each, that is 
>roughtly 100 pins or 20 inches.  your entire perimiter would be 
>nothing but screw terminals and that would reduce board available 
>size.
>
>Just some ideas.
>
>Dave
>
>
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>  
>