Asked by Amanda
I need help drawing the diagram
A three car race track has sensors in each lane at the finish line. As the cars cross the finish line their respective sensors respond and send a signal to a digital circuit. The three "finish" signals occur in the same order that the cars finish in. The digital circuit has a 3x3 matrix of nine LED's which indicate the placement of each car.
You're hired by the race track committee to design and build a digital circuit that will operate as described above.
The LED indicators must be laid out as shown on the picture.
A push button resets the circuit and extinguishes all lit LED's.
Design Hints:
*The signals from the track sensors are 10mS HIGH pulses. One pulse per race.
*Each LED is lit by an R.S. flip-flop.
*A two bit binary counter will start at zero and be incremented every time any track pulse occurs.
*Gating circuits are advised
*remember, each track signal only appears for every race
Chips Needed:
3 monostable multivibrators
97474 RS Flip-Flops
1 7476 gating chip
A three car race track has sensors in each lane at the finish line. As the cars cross the finish line their respective sensors respond and send a signal to a digital circuit. The three "finish" signals occur in the same order that the cars finish in. The digital circuit has a 3x3 matrix of nine LED's which indicate the placement of each car.
You're hired by the race track committee to design and build a digital circuit that will operate as described above.
The LED indicators must be laid out as shown on the picture.
A push button resets the circuit and extinguishes all lit LED's.
Design Hints:
*The signals from the track sensors are 10mS HIGH pulses. One pulse per race.
*Each LED is lit by an R.S. flip-flop.
*A two bit binary counter will start at zero and be incremented every time any track pulse occurs.
*Gating circuits are advised
*remember, each track signal only appears for every race
Chips Needed:
3 monostable multivibrators
97474 RS Flip-Flops
1 7476 gating chip
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