PS2 Controller - Simple Outline

The PlayStation brand is a series of video game consoles created and developed by Sony Computer Entertainment. In this post we concentrate on how the (playstation 2) PS2 controller functions. The PS2 controller consists of 4 main select buttons ‘Triangle’, ‘Circle’, ‘Cross’ and square, start, select, a D-pad, shoulder buttons ( L1, L2, R1, R2 ) and 2 analog sticks with Dual shock feature. All the buttons are pressure-sensitive except start and select. How is pressure-sensitivity achieved? Whenever a button is pressed, a small disc attached to the bottom of the button is pushed against the conductive strip mounted on the circuit board...

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Monostable Multivibrator- 555 timer

             It is a electronic circuitry (more specifically a relaxation oscillator), that maintains a HIGH or LOW at the output terminal for a fixed period of time interval (determined by  resistor capacitor pair), when a trigger is being given at the input. Other name is One-shot multivibrator.        What the name indicates, is that the output has only one stable state. When triggered it goes to unstable state, remains there for some time and get back to stable state.         We'll construct the circuit first with OpAmp and then with 555-timer IC. 555...

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