SIM900 breakout board

jechavarria writes:

Hi! I want to share with you my last design. It’s a breakout board for the SIM900 GSM module. Fits in a 50×50 mm board, and has an IO connector with many of the signals you need to control it. Also, as the board is designed to work with a battery, it also includes all the necessary components to charge and manage it. The internal power supply is 3.0V, so external controller must be work at this voltage. Here’re a couple of photos of the board

Visit Jechavarria’s website for project details.

Via the forum.