Circuit Documentation

Summary

This circuit involves an Arduino Nano microcontroller interfacing with an OLED display, a photocell (LDR), an LED, and resistors. The Arduino Nano reads the light intensity from the photocell and controls the LED and OLED display accordingly.

Component List

1. Arduino Nano

   • Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
   • Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

2. Photocell (LDR)

   • Description: A light-dependent resistor that changes its resistance based on the light intensity.
   • Pins: pin 0, pin 1

3. Resistor (10k Ohms)

   • Description: A resistor with a resistance of 10k Ohms.
   • Pins: pin1, pin2

4. LED: Two Pin (white)

   • Description: A white LED with two pins.
   • Pins: cathode, anode

5. Resistor (10 Ohms)

   • Description: A resistor with a resistance of 10 Ohms.
   • Pins: pin1, pin2

6. OLED Display (128x32)

   • Description: A 128x32 pixel OLED display.
   • Pins: SDA, SCL, VCC, GND

Wiring Details

Arduino Nano

• GND is connected to:

  • GND of the OLED Display
  • pin1 of the 10k Ohm Resistor
  • cathode of the LED

• 5V is connected to:

  • VCC of the OLED Display
  • pin 1 of the Photocell (LDR)

• A5 is connected to:

  • SCL of the OLED Display

• A4 is connected to:

  • SDA of the OLED Display

• A6 is connected to:

  • pin 0 of the Photocell (LDR)
  • pin2 of the 10k Ohm Resistor

• 3V3 is connected to:

  • pin2 of the 10 Ohm Resistor

Photocell (LDR)

• pin 0 is connected to:

  • A6 of the Arduino Nano
  • pin2 of the 10k Ohm Resistor

• pin 1 is connected to:

  • 5V of the Arduino Nano

Resistor (10k Ohms)

• pin1 is connected to:

  • GND of the Arduino Nano
  • GND of the OLED Display

• pin2 is connected to:

  • pin 0 of the Photocell (LDR)
  • A6 of the Arduino Nano

LED: Two Pin (white)

• cathode is connected to:

  • GND of the Arduino Nano

• anode is connected to:

  • pin1 of the 10 Ohm Resistor

Resistor (10 Ohms)

• pin1 is connected to:

  • anode of the LED

• pin2 is connected to:

  • 3V3 of the Arduino Nano

OLED Display (128x32)

• GND is connected to:

  • GND of the Arduino Nano
  • pin1 of the 10k Ohm Resistor

• VCC is connected to:

  • 5V of the Arduino Nano
  • pin 1 of the Photocell (LDR)

• SCL is connected to:

  • A5 of the Arduino Nano

• SDA is connected to:

  • A4 of the Arduino Nano

Documented Code

Arduino Nano Code (sketch.ino)

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

}

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

}

Additional Documentation (documentation.txt)

This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the microcontroller.