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 ...

Yes, you can actually make cell phone calls with your Arduino now. The real star of this build is the new GSM Shield library.

Building Your Own Cellphone The awesome DIY cellphone is capable of connecting to GSM networks in North America and uses a regular SIM card to make and receive phone calls and SMS messages.

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 ...

If you're looking to make yourself somewhat more productive on this lazy weekend, and you've got an Arduino or two collecting dust, we've got just the thing to add line after line to your ...

An Arduino is a popular open-source single-board microcontroller. Learn how to program one and let the possibilities take shape.

The Arduino MKR series of boards - aimed at the IoT - has two new members, aimed at LoRa and GSM connectivity.