August 11, 2009

TRAFFIC LIGHTS

9:09 PM  Sabarish  No comments

TRAFFIC LIGHTS

  • As well as the 4017 chip you will need a Hex (6) INVERTER and a Quad (4) AND gate chip.
  • Don't forget that all three chips need power connected to the correct pins.
  • The six diodes are Light Emitting Diodes (LED's).
  • The 470k and 4.7 uF control the speed at which the lights change

Posted in:

0 comments:

Post a Comment

DOOR BELL FOR DEAF CLICK HERE

Electronics is the study and use of electrical that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves. and semiconductors. The pure study of such devices is considered as a branch of physics, while the design and construction electronic circuits to solve practical problems is called electronic engineering.

Popular article

  • Nodal Analysis
    Introduction Kirchoff discovered this: the total current entering a node equals the total current leaving a node ! And, these cur...
  • Laser Activated Switch
    Laser Activated Switch This circuit is built around a 555 timer using very few components. Since the circuit is very simple, even a novice c...
  • Standard color codes
    Resistor Color Code Chart A handy ...
  • Transformer
    In real this is how an TRANSFORMER looks like.. the transformer is a device that transfers electrical energy from one end of the coil to th...