Description: P1 port single-chip computer control of six traffic lights, and use the timer/counter T0 to time, traffic signal control. Crossroads in the road all over East and West set the red, yellow, green three kinds of lights. Controlled by the north-south direction of P1.0 ~ P1.2, P1.0 which is red, P1.1 for the yellow light, P1.2 for the green light. P1.3 ~ P1.5 control the east-west direction, which is red, P1.3, P1.4 to yellow, P1.5 for the green light.
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JT 21-3.c.doc
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