Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano, a light sensor, a heart pulse sensor, an MPU-6050 accelerometer and gyroscope, an OLED display, an ESP8266 Wi-Fi module, and a battery. The circuit is designed to interface various sensors and display data on the OLED screen, with potential for wireless communication via the ESP8266.

Component List

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

Light Sensor

• Description: A sensor used to detect light intensity.
• Pins: VCC, SCL, SDA, ADD, GND

Heart Pulse Sensor

• Description: A sensor used to measure heart rate.
• Pins: GND, VCC, SIGNAL

MPU-6050

• Description: A 6-axis motion tracking device that combines a 3-axis gyroscope and a 3-axis accelerometer.
• Pins: VCC, GND, SCL, SDA, XDA, XCL, AD0, INT

Battery

• Description: A power source for the circuit.
• Pins: -, +

OLED Display 2.42"

• Description: A small display used to show information.
• Pins: GND, VCC, SCK, SDA, RES, DC, CS

ESP8266

• Description: A Wi-Fi module used for wireless communication.
• Pins: 3V, G, D8, D7, D6, D5, D4, D3, D2, D1, D0, A0, S3, S2, S1, SC, S0, SK, EN, VIN, RST, VU

Wiring Details

Arduino Nano

• D8: Connected to OLED Display DC
• D9: Connected to OLED Display RES
• D10: Connected to OLED Display CS
• D11/MOSI: Connected to OLED Display SDA
• A7: Connected to Light Sensor SDA
• A6: Connected to Light Sensor SCL
• A5: Connected to MPU-6050 SCL
• A4: Connected to MPU-6050 SDA
• A0: Connected to Heart Pulse Sensor SIGNAL
• D13/SCK: Connected to OLED Display SCK

Light Sensor

• VCC: Connected to Battery +
• GND: Connected to Battery -
• SDA: Connected to Arduino Nano A7
• SCL: Connected to Arduino Nano A6

Heart Pulse Sensor

• VCC: Connected to Battery +
• GND: Connected to Battery -
• SIGNAL: Connected to Arduino Nano A0

MPU-6050

• VCC: Connected to Battery +
• GND: Connected to Battery -
• SCL: Connected to Arduino Nano A5
• SDA: Connected to Arduino Nano A4

Battery

• +: Connected to Light Sensor VCC, Heart Pulse Sensor VCC, MPU-6050 VCC, OLED Display VCC
• -: Connected to Light Sensor GND, Heart Pulse Sensor GND, MPU-6050 GND, OLED Display GND

OLED Display 2.42"

• VCC: Connected to Battery +
• GND: Connected to Battery -
• SCK: Connected to Arduino Nano D13/SCK
• SDA: Connected to Arduino Nano D11/MOSI
• RES: Connected to Arduino Nano D9
• DC: Connected to Arduino Nano D8
• CS: Connected to Arduino Nano D10

ESP8266

• Not connected in this circuit

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 document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and documented code.