Stacking GPS, GSM, And An SD Card Into An Arduino Shield 18 Comments by: Brian Benchoff October 19, 2012 ...

The Arduino code takes all of the individual dialed numbers and combines them into a phone number. The sketch is set up so that after the 10th digit is read, the phone call is placed using an off ...

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 ...