Working Principle

When hand detected the soap tank supply the liquide soap and stop, you can]]> This is an automatic water and soap dispenser that uses simple components. The system used two water tanks one for the water and the other one for the liquid soap, both the two tanks connected to a single tap using T-Junction with non return valve. Each tank connected to water pump machine to supply it contents to the tap. The system also used Ultrasonic sensor for the detection of Hands at a specified distance.

Working Principle

When hand detected the soap tank supply the liquide soap and stop, you can then remove and squeezing hands, when you take it back and detected by the sensor again the water tank would then supply water for you to wash your hand. The water stoped immediately as you removed your hands.

Components

1- Arduino Uno

2- Two Water Pump (Wipper Pump)

3- One Ultrasonic Sensor

4- Two Relay

You can Download the code and proteus simulation here for free:

Knowbab Download Link

Lion Stern System Download Link

The meter measures the watt per hour and covert to killo watt per hour to monitor the consumption of the energy and automatically deduct from the recharged unit, when unit exusted supply terminated until the meter recharge again. The recharge could be via sms of manually enter by keypad,]]> The research project aimed to demonstrate the design of advance energy prepaid meter with newly added features. We constructed the circuit using locally available components, both the current and voltage sensor section ware built and tested successfully for the measurement.

The meter measures the watt per hour and covert to killo watt per hour to monitor the consumption of the energy and automatically deduct from the recharged unit, when unit exusted supply terminated until the meter recharge again. The recharge could be via sms of manually enter by keypad, when user intends to tamper the meter, the system cutoff the supply automatically until reactivated by the authority, even when there is no electricity the meter sense attempt of tamper and shutdown means of supply to load when is connected to the supply. The meter design to report situation to authority via sms and only authority can activate via sms.