I purchased another gadget to use with this robot. I want the robot to be able to call for help if the person being cared for were having trouble.

I purchased one of Adafruit's FONA boards and a TING SIM card.

I want to use the FONA with a Propeller microcontroller so I wrote a program to eavesdrop on the communication going on between the Terminal and the Arduino and the Arduino and FONA. I posted some details about this in the Parallax Forum.

Adafruit's software is opensource and available on their GitHub, but the code was not easy for me to follow. I decided it would be easier for me to figure out how to use the various FONA features by watching the data exchanged between the Arduino and the FONA.

For now I just have the code to monitor the communication running on the Propeller. I'm presently working on getting the Propeller to control the FONA directly.

The FONA has been a lot of fun to work with.