KTACMD jordan@cosmicpenguin.net 'ktacmd' is a command line program for controlling a KTA-223 USB/RS485 Relay IO Board from Ocean Controls (oceancontrols.com.au). I got mine from Sparkfun: http://www.sparkfun.com/products/9526. The KTA-223 has 8 output relays, 4 analog inputs and 4 digital inputs useful for many nefarious purposes. The KTA-223 uses a FTDI USB controller to set up a serial port, so make sure you have the FTDI driver loaded and working (it come standard with Ubuntu and most other reasonably new distributions. In 99% of the cases, if you plug in the controller USB controller, stuff just works. If it doesn't, google ftdi and do what it says). There are three commands for ktacmd: ./ktacmd status <n> - return the status of the relay. N can be a number between 0 and 8. Specify no number or 0 to see the status of all 8 relays, any other number shows just the status of that relay. ./ktacmd on <n> - turn on a relay, N can be an number between 1 and 8. Note that the KTA-223 does have a command to turn on all relays at the same time - that is purposely not supported here to avoid accidently turning them all on and blowing someting out. ./ktacmd off <n> - turn off a relay. N can be a number between 1 and 8. Specify no number of 0 to turn all relays off at the same time. Todo: Lots of things left to do, this is a partial list: * Add commands for input status * Ccontrollable addressing * Specify serial port via cmdline and config file * Turn on multiple relays with the WR command * Autotools so that it can be compiled for other architectures (ARM)