2B-ELECTRONIC ROVLETTE (TOUCH TYPE)
Coin,playing cards,passa or any other methods are used to play Roulette but there is possibility of frand/trichery. The special feature of this project is that if it is touched switch operates.
TECHNICAL DESCRIPTION AND WORKING
This project has been developed on successfully tested O.K at TV Engineers Technical Lab.
In this circuit a counter IC CD 4017 is employed. The IC is a 16 pin CMOS IC. Pin No14 of IC is the input pin which is to be connected with atouch plate. The size of the touch plate should be the exact size of a 50 paisa coin. It should not exceed. When we touch pin No 14 with
the help of our finger tip,it catches the 50 HZ hum of our body and the IC starts counting and all the LEDs glow. When we remove the finger from the touch plate any in of the LEDS keeps glowing. The circuit works on 3-15V DC but in case of low input voltage,the LEDS emit low light.
PRECAUTIONS WHILE ASSEMBLING
1.Pay attention to the anode and cathode of Diodes while connecting.
2.Avoid short circuit while soldering clean the surface properly
3.Use IC base for mounting IC
LIST OF COMPONENTS
Type from TIOU ED Vol -II page 23