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how to make an emergency traffic light prototype? and did anybody know about traffic lights sequence when at 'cross junction'.And what system is best for me to use; maybe PLC or Programmable Microprocessor? How does it work on the system? and how's the circuit diagram?Lastly i hope answer will be the cheapest on its' budget.

2007-04-03 06:11:04 · 1 answers · asked by anasthrash 1 in Science & Mathematics Engineering

1 answers

Depends on if it needs to be variable or timed.

The cheapest would be using TTL
A 555 timer
J/K flip flops or a binary counter.

Although a PLC or a Upc would be the easiest, but not cheap.

2007-04-03 06:30:29 · answer #1 · answered by uisignorant 6 · 0 0

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