I have a complete design. 4 channel, optically isolated, and accurate. I need help writing the driver. loop power is totally isolated to protect the beagle.
On Tuesday, July 9, 2013 at 12:10:44 PM UTC-4, [email protected] wrote: > > Hi, did anything ever come of this? > > On Thursday, July 22, 2010 1:15:46 AM UTC-4, Yann Ramin wrote: >> >> >> I have been working on scratching a personal itch with the BeagleBoard >> and thought I would make an announcement to see if there are any other >> people interested or with the same problem. >> >> The expansion board (dubbed the Hardhat) is an industrial analog I/O >> board, for interfacing with various "process control" pieces of >> equipment (RTD transmitters, VFDs, etc). Its an all-inclusive board >> with 4-20mA and 0-10V inputs and outputs (sourcing 4-20mA >> transmitters), an RS485 half duplex port (for MODBUS) as well as >> accepting a 24V power input to run the whole thing (BeagleBoard >> included). >> >> I'm busy documenting the design as is and awaiting prototype boards. >> The design will be under an Open Source Hardware license (likely CC-SA- >> A). >> >> More information can be found here: >> >> http://stackfoundry.com/beagle_hardhat/ >> >> -- 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/d/optout.
