Tuesday, 22 December 2015

STREET LIGHT

                                AUTOMATIC LIGHT SWITCH 

IT is very useful circuit for home or building light . some time you forget to turn off light in morning and when you come home in evening then you see that light is on . so that circuit will turn on light in night and turn off in day time
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Storing the long number(16bits / 32bits) in external flash of arduino or STM32 .

 #include <Wire.h> #define flashaddress 0x50 int liters = 10058 , add1=10 , add2,time1=55; // value of liters save in flash byte data ...