GPS/GSM Module. Software support

Module software support includes GSM module library and an example of its typical usage for ATMega microprocessor family written in C/C++. The logic of interaction with SIM900D modem is enclosed in SIM900Modem.c, SIM900Modem.h files and relies on enhanced version of HardwareSerial class originally designed for Arduino project. As SIM900Modem.c does not depend on AVR specific […]

GPS/GSM Module. PCB Component Layout

Components are soldered on both sides of the PCB. Only components that need to provide the required functionality should be soldered. Depending on your situation, some components such as CONN1, CONN2, CONN4, CONN5, L1 etc can be soldered on either side of the board. There is no strict sequence for soldering but U1 should be […]