> 1. 24v power source > Simplest to do: buy 24/5V DC/DC converter. Simplification: look for those which have 5V output and _at very least_ 5W power, better 10W - input voltage frequenty is acceptable in very broad area. Example: http://de.farnell.com/tdk-lambda/cc-10-2405sf-e/dc-dc-wandler-24v-i-p-5v-o-p-10w/dp/1996033
2. 24v I/O > if You need open-collector outputs ULN2003 is the cheapest and affordable way to go. Inputs: advised to use simple opto-coupler design (if You plan to use 24V logic I see the ground lying in industrial automation - galvanic isolation in IO is mostly a must) In push-pull is needed "poor's man" solution for small number of outputs is to use 32Vcc R-R input OpAmps - 24V supply + clamp in input not to burn 3v3 output from MPU, but also better is to use opto-decoupled 24V section from 3v3 section for IO in end-point rail and 3v3. Please read about industry automation electronics before You start such a desing. In a kind of environment i work (Wind Turbines industry) such inputs & output have to be very carefully designed not to destroy the input or output circuitry every several months. 3. 1 to 2gb RAM > If you need such amount of ram I advise use Wandboard Quads for application and BBB for IO with communication between those two. But first I would suggest running Your app in BBB, because 512 MB of RAM is pretty sufficient for embedded application even doing data processing. regards, T. > I assume a nice cape could also be designed to bring the I/O into nice > screw terminals too. > > I understand the BBB was not intended for this but it seems a pretty good > starting point and I just wanted to know the feasability and potential cost > of doing something like this. > > Mark > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
