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Timed Traffic Light PCB

Timed Traffic Light PCB. Josh Angell June 1, 2011 IME 458. Overview. Function: Emulates UK Traffic Light Requirements: Timing Counting Correct Sequence. Timing. 555 Timer IC Generates pulses with specific frequency Adjustable with Potentiometer (R2 below)

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Timed Traffic Light PCB

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  1. Timed Traffic Light PCB Josh Angell June 1, 2011 IME 458

  2. Overview Function: Emulates UK Traffic Light Requirements: Timing Counting Correct Sequence

  3. Timing 555 Timer IC Generates pulses with specific frequency Adjustable with Potentiometer (R2 below) Provides pulses to counter IC

  4. Counting 4017 Counter IC Decade counter LEDs connected to IC

  5. Schematic

  6. PCB Layout

  7. Assembly • All components through-hole • Soldered to board • Components arranged for alignment and ease of assembly

  8. Functioning Device

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