Presumably, the core phone module will have regulatory acceptance ... Of course, we’ve seen GSM and cell phone shields for Arduino before. Difficult to imagine sticking those in a dog collar ...

Arduino Home Security GSM Alarm * An Arduino + SIM900A Project ... (3,4); // RX and TX pins to communicate with GSM module #define msg_key 7 #define call_key 8 #define end_key 9 String number ...

The module, or shield, was developed in conjunction with Telefónica ... Shield can be adapted for this shield by changing just a few lines of code. The Arduino GSM Shield will be available in two ...

Adafruit has this week made available the Arduino FONA 800 that has been designed to provide Arduino development boards with the ability to enable Arduino cellular GSM via both voice and data.

He decided to go with the low-cost SIM800L GSM modem, but as it only works on 2G networks, provisions have been made in the board design to swap it out for a more modern module should you desire.

If you are looking for a compact GSM/GPRS module, you can get the SIM800L from most eBay traders. It is not the most judicious choice, but you can build your own basic GSM projects with a cheap modem ...

The device can be shipped along with Arduino’s Uno, MEGA, and Leonardo boards, and the GSM Shield itself comes with a SIM card. (You can, however, use whatever SIM card you like.) ...

Today Arduino released its next official product, the GSM Shield. Arduino has paved the way for things such as cheap, easy to use development boards, all the way to DIY gaming controllers ...