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A DVD Player Hack

Vacuum fluorescent displays (VFD) make any consumer device looking eye-catching, compelling and unusual. A VFD emits a very bright light with high contrast and can support display elements of various colors, some of them are capable of rendering not only seven-segment numerals but characters and even graphical information. VFDs are equally great for anything from […]

Beware: uCAM-TTL from 4DSystems

If you decide to buy a uCAM JPEG module from Australian company 4d Systems then be extra careful because you may end up with faulty module without any chance to get your money back. The trick is simple: you buy, let’s say, two modules from them. In a couple of weeks your shipment arrives undamaged […]

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 […]