Problem is the smirf doesn't seem to be doing anything useful. I can't get it to respond to the +++<cr> sequence or any of the AT commands (using Hyper Terminal), and my remote device isn't able to send or receive data. I have jumpered the CTS/RTS terminals, but with a wire on the terminals, not solder.
Does anybody have an idea here? Or even a reliable way of testing the whole rig to see if it's operating properly or isolating any problems?
Any thoughts will be gratefully appreciated.