Arduino devices have had the option of a GSM linkup for awhile, but getting that cellular link to truly strut its stuff hasn't always been easy, even for those of us who'd be inclined to program ...

I have not read through the entire spec but it seems like it is an Arduino Mega and a custom GSM shield, has an audio input of some kind, and has two relays.

New GSM Shield from Arduino includes global data tariff. Charles Gantt. TweakTown. Published Mar 11, 2013 11:30 AM CDT Updated Nov 3, 2020 12:24 PM CST. 45 seconds read time.

The Arduino GSM shield runs at 5 volts. The designers chose a 6.3V rated capacitor. While this close of a tolerance may be good enough for some types of capacitor, it is a no-go for a Tantalum cap ...

Mellis used the readily available Arduino GSM Shield, which lets Arduino-based machines access the web over cellular networks, as the basis for his project, but greatly expanded upon the component ...

The Arduino FONA 800 is equipped with quad-band 850/900/1800/1900MHz support and can connect to any global GSM network using any 2G SIM, enabling the ability to send and receive SMS messages and ...

Features of the Arduino GSM Shield Cellphone As with any phone, the Arduino GSM Shield cellphone allows you to store names and phone numbers, display the time, and serve as an alarm clock.

The module, or shield, was developed in conjunction with Telefónica’s Physical Internet Laboratory and is available to purchase. The open-source GSM Shield comes with a Telefónica SIM card ready to be ...

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.) ...