New GSM Shield from GrikerTech

Community Products and Services
7

popegg:
hi grikertech,

some question,

  1. can I use pre paid sim card ?
  2. Do I need to buy another antenna for this Shield?

  1. Yes, you can use a pre-paid SIM card for the shield. The GrikerTech GSM shield supports Quad-band GSM network.

  2. The GrikerTech GSM shield has a high performance design on board antenna. The external antenna is applicable only if you install the shield in a metal box.