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Teensy 4.1-Based Multi-Channel Analog Input System with Potentiometer Control

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Circuit Documentation

Summary

This document provides a detailed overview of a circuit design that includes various components such as capacitors, voltage regulators, potentiometers, multiplexers, and a microcontroller. The circuit is designed to manage power distribution, signal multiplexing, and user input through potentiometers.

Component List

  1. Electrolytic Capacitor

    • Description: Electrolytic capacitors are used for filtering and energy storage.
    • Pins: +, -
    • Properties:
      • Capacitance: 10 µF

  2. ams1117 3.3

    • Description: A voltage regulator that outputs a stable 3.3V.
    • Pins: VIN, OUT, GND

  3. Ceramic Capacitor

    • Description: Ceramic capacitors are used for high-frequency filtering.
    • Pins: pin0, pin1
    • Properties:
      • Capacitance: 100 nF

  4. Rotary Potentiometer

    • Description: A variable resistor used for adjusting voltage levels.
    • Pins: leg1, wiper, leg2
    • Properties:
      • Resistance: 10 kΩ

  5. SparkFun-74HC4051-8-Channel-Mux-Breakout

    • Description: An 8-channel multiplexer for signal routing.
    • Pins: Y7, Y6, Y5, Y4, Y3, Y2, Y1, Y0, GND, VCC, VEE, !E!, S2, S1, S0, Z

  6. Teensy 4.1

    • Description: A microcontroller for managing the circuit's logic and control.
    • Pins: Ground, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 3v, 24, 25, 26, 27, 28, 29, 30, 31, 32, 5V/Input, 3V, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 41, 40, 39, 38, 37, 36, 35, 34, 33

  7. 16 channel analog multiplexer bob

    • Description: A 16-channel multiplexer for analog signal routing.
    • Pins: GND, VCC, EN, S0, S1, S2, S3, SIG, C0, C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15

Wiring Details

Electrolytic Capacitor

ams1117 3.3

Ceramic Capacitor

Rotary Potentiometer

SparkFun-74HC4051-8-Channel-Mux-Breakout