Sam Clarke
An SMS based GPS tracker using the Adafruit Ultimate GPS module http://www.adafruit.com/products/746 and the Seeed Studio GPRS shield (Sim900 chipset) http://www.seeedstudio.com/depot/gprs-shield-p-779.html?cPath=132_134
Dependencies: GPS MODSERIAL mbed-rtos mbed
SMS based GPS tracker
This is an SMS based GPS tracker using using the Adafruit Ultimate GPS module and the Seeed studio GPRS arduino shield [SIM900 chipset]. The idea of this project is to leverage the free SMS between Virgin mobile prepaid SIM cards in Australia for long distance communication.
Currently the GPRS shield is switched on manually, and should be done about 10 seconds before powering the mbed/GPS in order to disable echo properly during start up. This could easily be fixed by switching the GPRS shield with the mbed at start up, waiting the 10 seconds, set the echo then flush the buffer.
The mbed can read all 160 ASCII chars sent in a message for control.
The Seeed GPRS shield http://www.seeedstudio.com/depot/gprs-shield-p-779.html?cPath=132_134
The Adafruit Ultimate GPS http://www.adafruit.com/products/746
History
Added cardinal directions (N,NNE,ENE,E,ESE,SSE,S etc)
2012-10-21, by SamClarke [Sun, 21 Oct 2012 09:30:17 +0000] rev 14
Added cardinal directions (N,NNE,ENE,E,ESE,SSE,S etc)
changed the large float gps.time into the variables int gps.hours; int gps.minutes; float gps.seconds allowing for hh:mm:ss formatting
2012-10-13, by SamClarke [Sat, 13 Oct 2012 04:28:51 +0000] rev 13
changed the large float gps.time into the variables int gps.hours; int gps.minutes; float gps.seconds allowing for hh:mm:ss formatting
Now has the ability to receive 160 chars for control
2012-10-13, by SamClarke [Sat, 13 Oct 2012 02:09:33 +0000] rev 12
Now has the ability to receive 160 chars for control
2012-10-12, by SamClarke [Fri, 12 Oct 2012 04:58:17 +0000] rev 11
Even cleaner! ; plus replaced some 'for loops' with other higher level functions
2012-10-12, by SamClarke [Fri, 12 Oct 2012 04:53:58 +0000] rev 10
Even cleaner! ; plus replaced some 'for loops' with other higher level functions
cleaned up :)
2012-10-09, by SamClarke [Tue, 09 Oct 2012 18:48:48 +0000] rev 9
cleaned up :)
2012-10-09, by SamClarke [Tue, 09 Oct 2012 06:37:57 +0000] rev 8
Returns Tracking information to sender instead of a hard coded number.; Ability to receive a 4 character message (use for software triggers)
2012-10-09, by SamClarke [Tue, 09 Oct 2012 06:20:57 +0000] rev 7
Returns Tracking information to sender instead of a hard coded number.; Ability to receive a 4 character message (use for software triggers)
Added an incoming call as a trigger for the SMS.; ; you call, it hangs up and messages you it's coordinates :)
2012-10-08, by SamClarke [Mon, 08 Oct 2012 06:34:31 +0000] rev 6
Added an incoming call as a trigger for the SMS.; ; you call, it hangs up and messages you it's coordinates :)
Added an incoming call as another trigger for the SMS notification.; You call, it hangs up and sends you its coordinates :)
2012-10-08, by SamClarke [Mon, 08 Oct 2012 06:32:46 +0000] rev 5
Added an incoming call as another trigger for the SMS notification.; You call, it hangs up and sends you its coordinates :)