On the 3G shield, by default the power pin is on D8 and reset pin is on D9. Make it HIGH then it works. if you want to play this 3G shield using SoftwareSerial on Arduino, Try this code: /* Change UART control ports from Tx0 / Rx1 to Tx2 / Rx3 using
This is an old arduino 3G module bought half years ago. Its wiki: http://wiki.iteadstudio.com/ITEAD_3G_Shield Its mall: http://imall.itead.cc/itead-3g-shield.html But as you can see that, the download link does not exist anymore. But after googling a