Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a 9V battery, resistors, electrolytic capacitors, an Arduino Mega 2560, and an Adafruit DS1841. The circuit is designed to demonstrate basic electronic principles and microcontroller interfacing.

Component List

9V Battery

• Description: Standard 9V battery
• Pins: -, +

Resistor

• Description: 200 Ohm resistor
• Pins: pin1, pin2
• Properties:
  • Resistance: 200 Ohms

Electrolytic Capacitor

• Description: 1 µF electrolytic capacitor
• Pins: -, +
• Properties:
  • Capacitance: 1 µF

Arduino Mega 2560

• Description: Microcontroller board based on the ATmega2560
• Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0-A15, D0-D53, AREF, SDA, SCL

Adafruit DS1841

• Description: I2C Digital Potentiometer
• Pins: GND, RW, RH, VCC, SCL, SDA, A0, A1

Wiring Details

9V Battery

• + Pin:
  • Connected to:
    • Resistor (pin1)
    • Electrolytic Capacitor (+)
    • Adafruit DS1841 (RH)
• - Pin:
  • Connected to:
    • Resistor (pin2)
    • Electrolytic Capacitor (-)
    • Electrolytic Capacitor (-)

Resistor (200 Ohms)

• pin1:
  • Connected to:
    • 9V Battery (+)
    • Electrolytic Capacitor (+)
    • Adafruit DS1841 (RH)
• pin2:
  • Connected to:
    • Resistor (pin1)
    • Electrolytic Capacitor (+)
    • Arduino Mega 2560 (A3)

Electrolytic Capacitor (1 µF)

• + Pin:
  • Connected to:
    • Resistor (pin1)
    • 9V Battery (+)
    • Adafruit DS1841 (RH)
• - Pin:
  • Connected to:
    • Adafruit DS1841 (RW)
    • Electrolytic Capacitor (+)
    • Arduino Mega 2560 (A0)

Arduino Mega 2560

• 5V Pin:
  • Connected to:
    • Arduino Mega 2560 (A5)
    • Arduino Mega 2560 (D0 RX0)
    • Adafruit DS1841 (VCC)
• GND Pin:
  • Connected to:
    • Arduino Mega 2560 (A4)
    • Arduino Mega 2560 (D1 TX0)
    • Adafruit DS1841 (GND)
• A0 Pin:
  • Connected to:
    • Electrolytic Capacitor (-)
    • Adafruit DS1841 (RW)
    • Electrolytic Capacitor (+)
• A3 Pin:
  • Connected to:
    • Resistor (pin2)
    • Resistor (pin1)
    • Electrolytic Capacitor (+)
• D21/SCL Pin:
  • Connected to:
    • Adafruit DS1841 (SCL)
• D20/SDA Pin:
  • Connected to:
    • Adafruit DS1841 (SDA)

Adafruit DS1841

• RH Pin:
  • Connected to:
    • Resistor (pin1)
    • Electrolytic Capacitor (+)
    • 9V Battery (+)
• RW Pin:
  • Connected to:
    • Electrolytic Capacitor (-)
    • Electrolytic Capacitor (+)
    • Arduino Mega 2560 (A0)
• VCC Pin:
  • Connected to:
    • Arduino Mega 2560 (5V)
    • Arduino Mega 2560 (A5)
    • Arduino Mega 2560 (D0 RX0)
• GND Pin:
  • Connected to:
    • Arduino Mega 2560 (GND)
    • Arduino Mega 2560 (A4)
    • Arduino Mega 2560 (D1 TX0)

Documented Code

Arduino Mega 2560 Code

sketch.ino

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

documentation.txt