Atmega328 Pro Module 16MHz 25mm to prevent the battery from

to prevent the battery from constantly charging / discharging

detection angle: 360°(spherical) no dead ends

Forward Current (If): 25 mA

The SIM900 / hardware is completely still in the design when the manual design

Atmega328 Pro Module 16MHz 25mm to prevent the battery fromThe ATmega328 board compatible For Arduino Pro Mini. It has 14 digital input output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on board resonator, a reset button, and holes for mounting pin headers. We increased VCC and GND leads, you can easily connect by Dupont line with other applications, it is not very convenient? A 10 pin header can be connected to an FTDI cable board to provide USB power and communication to the board.