Thermostat Project using DS18B20 and P89V51RD2 Microcontroller. Compiler used is SDCC. Schematic Included. Main file is "09.C". The code is written for turning the relay on and off at particular temperature thresholds.
This is a PCI to USB bridge schematic that i was draw by hand from a PCI to USB card, the schematic use VT6212L to make bridge, the idear is that we can use microcontroler interface to PC through PCI slot by USB, ha ha it is too easy.
