One of my co-workers is involved with a group that run “code clubs” at local schools teaching high school students how to code.

We got talking about projects which would appeal to the students and I suggested making a mobile phone. This is my prototype

It’s more Nokia 5110 than Nokia Lumia 820

If you want to build your own (the parts list will grow as I add GPS, accelerometer, compass, screen etc..)

• Netduino 2 or Netduino 2 plus
• Seeedstudio GPRS Shield (Link is for V2 I’m using V1)
• Grove- Base Shield V1.2
• Grove – Button x 2
• Grove – Universal 4 Pin Buckled 5cm cables
• Grove – Purple Led

For V0.1 of code one button sends and SMS to my mobile, the other button initiates a voice call to my mobile. The initial version of the code was based on the SeeedStudio GSM Shield Netduino driver on codeplex.

The later versions are based on the CodeFreakout Seeedstudio GPRS Shield drivers which are available via NuGet. I have added some functionality for dialling and hanging up voice calls which I will post for others to use once I have tested it some more.