Just saw this on sale at DFRobot, $32.
What’s it for:
- Send and receive GPRS data (TCP/IP, HTTP, etc.)
- Receive GPS data and A-GPS data
- Send and receive SMS messages
- Make and receive phone calls
I used a SIM908 with a Atmega1284P to capture GPS and send text location out perioidically, and then used the rest of the 1284 IO to do a bunch of other stuff. Nice having one serial port free to USB comms and having the 2nd for the GPS/GSM interface.
The 908 has the GPS antenna on board, the 808 has it off board.
The 808 has a much bigger GPS antenna, and the larger Power header and extra SCL/SDA pins that are on the Uno now. Also less $, $32 (on sale from $40) vs $89.50 for the 908.
I didn’t use the library, just the raw commands to get GPS data, parse out the parts I wanted, and then text it out periodically.
I haven’t tried the 808 yet. SIM card cover flips up to install the card, vs sliding it in on the 908.
