Title :
Illuminance Test System Based on MSP430
Author :
Ding Yanchuang ; Yao Yingying
Author_Institution :
Sch. of Mech. Eng., Dalian Jiaotong Univ., Dalian, China
Abstract :
In order to test the illuminance indoor, we use 16-bit MCU msp430f449, silicon photo cell BPW34 and clock chip DS12C887 to design an indoor illuminance test system with calendar function. Voltage signal is collected by BPW34, and it goes through the amplifier to be enlarged. Then it is transferred to the 12 bit AD of MSP430. Finally the outputs are displayed in the LCD display module. The clock chip DS12C887 controls the real-time display, which can be modified through the buttons. Illuminance measuring range is 0.5lx-2000lx and the accuracy is 0.5lx.
Keywords :
clocks; lighting; liquid crystal displays; 16-bit MCU; BPW34; DS12C887; LCD display module; MSP430; calendar function; clock chip; illuminance test system; silicon photo cell; voltage signal; Algorithms; Clocks; Keyboards; Lighting; Random access memory; Registers; Silicon;
Conference_Titel :
Information Engineering and Computer Science (ICIECS), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7939-9
Electronic_ISBN :
2156-7379
DOI :
10.1109/ICIECS.2010.5678322
