Question

3- Traffic Light Controller The diagram of figure 4 represents an intersection of a main road (North-South) and a side road (East-West). The simplified traffic light controller cycles the light (Red, Yellow, and Green) every one minutes for the side road and every three minutes for the main road. Also, the controller ensures that the Red (N-S) and Red (EW) lasts for three minutes. Assuming that a 1 minute clock source is available, then EWRED EWYELLOW EWGREEN NSRED NSYELLOW NSGREEN NSRED NSYELLOW NSGREEN EWRED EWYELLOW EWGREEN Figure 4, traffic light controller 1- Draw a block diagram showing all the inputs and outputs 2- Draw a state transition diagram 3- Design a sequential circuit to implement the controller and choose components as desired). 4- Compute the components cost using commercial catalogs (e.g. Digi-Key) 5- If the cost of a printed circuit board is one dollar per square inch, what is the total circuit cost 6- Estimate the total selling cost per quantity of 100.

          3- Traffic Light Controller
The diagram of figure 4 represents an intersection of a main road (North-South) and a side road (East-West). The
simplified traffic light controller cycles the light (Red, Yellow, and Green) every one minutes for the side road and
every three minutes for the main road. Also, the controller ensures that the Red (N-S) and Red (EW) lasts for three
minutes. Assuming that a 1 minute clock source is available, then
EWRED
EWYELLOW
EWGREEN
NSRED
NSYELLOW
NSGREEN
NSRED
NSYELLOW
NSGREEN
EWRED
EWYELLOW
EWGREEN
Figure 4, traffic light controller
1- Draw a block diagram showing all the inputs and outputs
2- Draw a state transition diagram
3- Design a sequential circuit to implement the controller and choose components as desired).
4- Compute the components cost using commercial catalogs (e.g. Digi-Key)
5- If the cost of a printed circuit board is one dollar per square inch, what is the total circuit cost
6- Estimate the total selling cost per quantity of 100.

3- Traffic Light Controller
The diagram of figure 4 represents an intersection of a main road (North-South) and a side road (East-West). The
simplified traffic light controller cycles the light (Red, Yellow, and Green) every one minutes for the side road and
every three minutes for the main road. Also, the controller ensures that the Red (N-S) and Red (EW) lasts for three
minutes. Assuming that a 1 minute clock source is available, then
EWRED
EWYELLOW
EWGREEN
NSRED
NSYELLOW
NSGREEN
NSRED
NSYELLOW
NSGREEN
EWRED
EWYELLOW
EWGREEN
Figure 4, traffic light controller
1- Draw a block diagram showing all the inputs and outputs
2- Draw a state transition diagram
3- Design a sequential circuit to implement the controller and choose components as desired).
4- Compute the components cost using commercial catalogs (e.g. Digi-Key)
5- If the cost of a printed circuit board is one dollar per square inch, what is the total circuit cost
6- Estimate the total selling cost per quantity of 100.

Added by Alejandro R.

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