WellDone/MoMo-Firmware — pull request #56 by amcgee (2014-03-26 02:16:41+00:00)
Title: Robustify gsm module

There are still a number of issues, but this should facilitate testing (see gsmtool python executable) and make the gsm module slightly more robust. As an example, AT+CPIN? will no longer cause the module to hang forever since this change adds a 2000-tick timeout when waiting for a character from the GSM module.

The main remaining issue is that sending a GSM message could fail (i.e. if there isn't signal, the sim card isn't registered, etc.) but will do so silently. I spent a little time trying to tackle this but XC8 got in my way, will revisit shortly.