I've just bought an RPI SIM800 GSM/GPRS ADD-ON V2.0 (http://wiki.iteadstudio.com/RPI_SIM800_GSM/GPRS_ADD-ON_V2.0) for raspberry pi and I ned to open and close PPP gprs connection, looked for a script able to do that but I didn't find. I tried with AT commands but I wasn't able, maybe I don't know all the commands that need to be set. In alternative, I tried to use wvdial but I was not able to configurate it, and the command "sudo wvdialconf" failed, finding the modem busy.
Do you have a solution? can you provide a list of AT commands that must be used to set and then open/close gprs connection, or a script doing that, or a sample of a working wvdial.conf file?
I calling/answer some one by rpi but i didn't use grps connection.
Is there a python library available for this board?
I want send sms messages to the pie to switch apparatus on/off