this is very useful device for new generation.

1. Poornima University
Department of Electrical Engineering
Presentation
on
Put Coin Draw Power
2016-2017
Submitted To: Submitted By:
Purushottam Kumawat Devanshu Lama
Amarnath
Amit Kumar
Sunil Kumar

2. Contents
 Introduction
 Components use
 Circuit diagram
 Block diagram
 Working of components
 Working principle
 Application
 Scope of work
 Limitation
 References

3. Introduction
Importance of power
Power availability
Alternative of portable of power

4. Working Principle
 Microcontroller based device. In this device we make a system
which is collect the coins and give electricity equivalent the
coins.
 Use of coin detecting sensor which is detecting the coins.
 When you close the load switch provided in the circuit, the
energies to connect the load and the coin count on display
starts decrementing. When the count decrements to zero, the
relay de-energies to disconnect the load.

5. Components
Components Specification
IC1 NE556 DUAL TIMER
IC2 AT89C2051
MICROCONTROLER
IC3 CD45117-SEGMENT
DECORDER/DRIVER
IC4 7805 5V REGULATOR
IC5 7806 6V REGULATOR
T1, T2 1N4007 RECTIFIER DIOD
LED1-LED5 5mm LED
RESISTOR (ALL ¼-WATT, +-5% CARDON)
R1 220-Ohm
R2 33kilo-ohm

6. Components
Components Specification
R3 220-kilo-ohm
R4, R7, R9, R225 330-ohm
R5, R8 1kilo-ohm
R6 10 kilo-ohm
R10- R16 270-kilo-ohm
R17- R24 4.7 kilo-ohm

7. Circuit Diagram
Figure 1:Put Coin Draw Power Circuit Diagram

8. Block Diagram
figure no 2: Put Coin Draw Power Block Diagram

9. Applications
 Use in Hotels, Lodges, Guest House, Rest House.
 Use in Game Consoles.
 Public Services such as cyber café, music stations, automatic
mobile charging points.

10. Scope For Advancement:
 Using pre-paid card in place of token/coin to make more
advanced system.

11. Features
 This system uses a sensor for detecting the coin or token
 Microcontroller counts the number of coins/token and shows
the count on a seven segment display.
 When load switch is closed the relay connects the load and the
coin count on display, starts decrementing.
 When the count decrement to zero the relay de-energies to
disconnects the load
 Easy to Install.
 Any metal token can be used.

12. Reference
melodyprojects.com/b-tech-m.../89c2051-02-
put-coin-and-draw-power.html
www.dkdynamics.com/index.../electrical/311-
prepaid-power-or-put-coin-a-draw-po...
www.instructables.com/answers/put-coin-draw-
power/
Techpedia.sristi.org/projects/put-coin-and-
draw-power/187688

14. THANK
YOU