Friday, 19 February 2016

WATER TANK INDICATOR






























IT IS very simple and cheap circuit . which indicate the tank water level . when tank will fill the buzzer will beep . BC548 transistor will use here.







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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 ...