|Recent Trends in Electronics and Communication 2013
|Foundation of Computer Science USA
|RTEC - Number 1
|Authors: Vikrant Verma, Vivek Kumar, Naveen Yadav
Vikrant Verma, Vivek Kumar, Naveen Yadav . PC Configurable P89V51RD2 based Digital Clock Displaying the Day, Date, Time, and Temperature on a 128x64 Graphical LCD Module. Recent Trends in Electronics and Communication 2013. RTEC, 1 (December 2013), 26-30.
This study discusses about the designing of a real time, PC configurable standalone digital clock implemented on a 128x64 graphical LCD and built around an eight bit microcontroller. The graphical LCD is interfaced with an 8051 core microcontroller. Also a temperature sensor LM35 via ADC and a serial Real Time Clock chip DS1307 via I2C protocol are interfaced to the microcontroller to display the day, date, time and temperature with variable font size onto the graphical LCD module. The digital clock implemented here is provided a power backup facility through a CMOS battery for time updating during power cut. The clock can be configured by connecting it to the COM port of PC and writing in a particular format into the HyperTerminal. The digital clock can be implemented as a subsystem and fits into many real time switching applications just like biometric attendance system, etc.