The assignment is to make a pseudo-random number generator. Its output will be interpreted by 4 LED's. It will be controlled by a clock signal given by the 555 timer chip.
Connect the timer chip (555), buzzer, 500 k-ohms and 100 k-ohms resistor, 1 microfarad capacitor so as to produce a clock signal.
Pass the clock signal, after it has been inverted to the 74LS194.
Set S0 (High) and S1 (Low) to force a shift-right register, and set Clear to high.
To produce a "random" output for the LED's, X-OR QA with QD and invert the result.
Connect the output to DA (shift right serial input).
Connect the LED's to QA, QB, QC, QD.
Optional:
Connect QA, QB, QC, and QD to the four inputs on the 7447 driver chip to act as a four digit binary number with QA as 1, QB as 2, QC as 4, and QD as 8.
Connect the driver chip to the seven segment display.
| Color | Used For |
| Black | Ground |
| Red | Power |
| White | Clock |
| Yellow | QA |
| Green | QB |
| Blue | QC, connections for 555 timer |
| Grey | QD |
| Brown | All other connections |