Recent content by Allan C.

  1. A

    Multiplexer as a Position Sensor: How?

    Solved. Thanks.
  2. A

    Multiplexer as a Position Sensor: How?

    Yes, Thank You. I wasn't really sure where this needed to be posted. Here are a few photos to give an idea of what is to happen. The LEDs will constantly be transmitting. They look for a blocked path. When it moves to the right it will produce a square wave from 0% - 100% duty cycle. When...
  3. A

    Multiplexer as a Position Sensor: How?

    Purpose: Create a position sensor using LEDs. Goal: Increase or decrease a pulse width in response to direction of movement. Chips Involved: 1) Clock. 2) 2x DM74150 (16×1 Multiplexers.) 3) 2x SN74193 (4-bit Binary Counters.) 4) 1x SN74LS112 (Negative Edge Master Slave JK Flip-Flop.) 5) 1x...