Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes various sensors, a microcontroller, and other electronic components. The primary controller in the circuit is an Arduino UNO, which interfaces with sensors like the GP2Y1010AU0F dust sensor, DS18B20 temperature sensor, a voltage sensor, and an ACS712 current sensor. Additionally, the circuit includes an RTC DS3231 for real-time clock functionality, a micro SD card module for data storage, and an ESP32 CAM module for camera functionalities. The circuit is powered by a solar panel, and an FTDI programmer is used for programming the ESP32 CAM. An LED and a resistor-capacitor pair are also part of the circuit for indicating status and signal conditioning, respectively.

Component List

Arduino UNO

A microcontroller board based on the ATmega328P. It has digital input/output pins, analog inputs, a USB connection for programming, and power management features.

GP2Y1010AU0F

An optical air quality sensor designed to detect dust particles in the air.

Electrolytic Capacitor

A polarized capacitor with a capacitance value of 0.00025 Farads, used for filtering and energy storage in circuits.

Resistor

A passive two-terminal electrical component with a resistance of 200 Ohms, used to limit current and divide voltages.

DS18B20 Temperature Sensor

A digital temperature sensor that provides 9-bit to 12-bit Celsius temperature measurements.

Voltage Sensor

A device that measures the voltage between two points in an electric circuit.

Solar Panel

A photovoltaic panel that converts sunlight into electrical energy, used to power the circuit.

ACS712 Current Sensor

A hall-effect-based linear current sensor that can measure AC or DC currents.

LED: Two Pin (red)

A red light-emitting diode used as an indicator light in the circuit.

RTC DS3231

A real-time clock module that maintains accurate timekeeping with a temperature-compensated crystal oscillator.

Micro SD Card Module

A module that allows micro SD cards to be interfaced with a microcontroller for data storage purposes.

ESP32 CAM

A small-sized camera module with Wi-Fi and Bluetooth capabilities, based on the ESP32 chip.

FTDI Programmer

A USB to serial converter used to program devices like the ESP32 CAM.

Wiring Details

Arduino UNO

• D7 connected to GP2Y1010AU0F (LED)
• GND connected to GP2Y1010AU0F (S-GND), RTC DS3231 (GND), DS18B20 (GND), Micro SD Card Module (gnd), Voltage Sensor (Gnd), ACS712 Current Sensor (GND)
• A0 connected to GP2Y1010AU0F (Vout)
• 5V connected to GP2Y1010AU0F (VCC), RTC DS3231 (VCC), Micro SD Card Module (vcc), DS18B20 (VCC), Voltage Sensor (Vcc), ACS712 Current Sensor (VCC)
• SCL connected to RTC DS3231 (SCL)
• SDA connected to RTC DS3231 (SDA)
• D13 connected to Micro SD Card Module (sck)
• D12 connected to Micro SD Card Module (miso)
• D11 connected to Micro SD Card Module (mosi)
• D10 connected to Micro SD Card Module (cs)
• D2 connected to DS18B20 (OUT)

GP2Y1010AU0F

• V-LED connected to Electrolytic Capacitor (+) and Resistor (pin1)
• LED-GND connected to Electrolytic Capacitor (-)
• LED connected to Arduino UNO (D7)
• S-GND connected to Arduino UNO (GND)
• Vout connected to Arduino UNO (A0)
• VCC connected to Resistor (pin2)

Electrolytic Capacitor

• + connected to GP2Y1010AU0F (V-LED) and Resistor (pin1)
• - connected to GP2Y1010AU0F (LED-GND)

Resistor

• pin1 connected to Electrolytic Capacitor (+) and GP2Y1010AU0F (V-LED)
• pin2 connected to GP2Y1010AU0F (VCC)

DS18B20 Temperature Sensor

• GND connected to Arduino UNO (GND)
• VCC connected to Arduino UNO (5V)
• OUT connected to Arduino UNO (D2)

Voltage Sensor

• Ground connected to LED (cathode) and Solar Panel (-)
• Phase connected to ACS712 Current Sensor (2) and Solar Panel (+)
• Vcc connected to Arduino UNO (5V)
• Out connected to Arduino UNO (A1)
• Gnd connected to Arduino UNO (GND)

Solar Panel

• + connected to Voltage Sensor (Phase) and ACS712 Current Sensor (2)
• - connected to LED (cathode)

ACS712 Current Sensor

• 1 connected to LED (anode)
• 2 connected to Voltage Sensor (Phase) and Solar Panel (+)
• GND connected to Arduino UNO (GND)
• OUT connected to Arduino UNO (A2)
• VCC connected to Arduino UNO (5V)

LED: Two Pin (red)

• cathode connected to Voltage Sensor (Ground) and Solar Panel (-)
• anode connected to ACS712 Current Sensor (1)

RTC DS3231

• SCL connected to Arduino UNO (SCL)
• SDA connected to Arduino UNO (SDA)
• VCC connected to Arduino UNO (5V)
• GND connected to Arduino UNO (GND)

Micro SD Card Module

• sck connected to Arduino UNO (D13)
• miso connected to Arduino UNO (D12)
• mosi connected to Arduino UNO (D11)
• cs connected to Arduino UNO (D10)
• vcc connected to Arduino UNO (5V)
• gnd connected to Arduino UNO (GND)

ESP32 CAM

• 5V connected to FTDI Programmer (VCC)
• GND connected to FTDI Programmer (GND) and ESP32 CAM (GPIO0)
• GPIO3 / RX connected to FTDI Programmer (TX)
• GPIO1 / TX connected to FTDI Programmer (RX)

FTDI Programmer

• VCC connected to ESP32 CAM (5V)
• TX connected to ESP32 CAM (GPIO3 / RX)
• RX connected to ESP32 CAM (GPIO1 / TX)
• GND connected to ESP32 CAM (GND)

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Additional Notes

The code provided for the Arduino UNO is a template with empty setup() and loop() functions. Actual implementation details should be added based on the specific requirements of the circuit's operation.