Flowchart:
The LCD will display 'SWITCH ON' as soon the power supply is attaches to the circuit. So when there are movement the LCD will display 'SPEED km/h'. The movement of vehicle is detect by sensor. The speed display on LCD is depend on the movement distance of vehicle. As the vehicle is move the LCD will display 'HAVE A NICE DAY'.
Block Diagram:
Based o the diagram above, a DC power supply of 5V is need to turn on the circuit including an 7805 IC and micro controller IC. So the switch button is used to control the speed as the sensor is not used. All the 4 switch buttons has different amount of speed when is pressed on. The speed number will be display by LCD.
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