Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to interface various sensors with an ESP32 microcontroller. The circuit includes a temperature sensor, pH meter, dissolved oxygen sensor, turbidity sensor, and a GPS module. The ESP32 microcontroller collects data from these sensors and processes it accordingly.

Component List

Temperature Sensor

• Component Name: Temperature Sensor
• Pins: Temp GND Black, Temp VDD Red, Temp DQ Data Yellow
• Description: Measures temperature.
• Purpose in Circuit: Provides temperature data to the ESP32.

PH Meter

• Component Name: PH Meter
• Pins: Signal, VCC, GND
• Description: Measures pH levels.
• Purpose in Circuit: Provides pH data to the ESP32.

Dissolved Oxygen Sensor

• Component Name: Dissolved Oxygen Sensor
• Pins: ground, vcc, a
• Description: Measures dissolved oxygen levels.
• Purpose in Circuit: Provides dissolved oxygen data to the ESP32.

ESP32 (30 pin)

• Component Name: ESP32 (30 pin)
• Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3
• Description: Microcontroller with Wi-Fi and Bluetooth capabilities.
• Purpose in Circuit: Central processing unit that collects data from all sensors and processes it.

DFRobot Gravity Analog Turbidity Sensor

• Component Name: DFRobot Gravity Analog Turbidity Sensor
• Pins: VCC, GND, SIG
• Description: Measures water turbidity.
• Purpose in Circuit: Provides turbidity data to the ESP32.

ATGM336H

• Component Name: ATGM336H
• Pins: VCC, GND, TX, RX, PPS
• Description: GPS module.
• Purpose in Circuit: Provides GPS data to the ESP32.

Wiring Details

Temperature Sensor

• Temp GND Black: Connected to GND (ESP32)
• Temp VDD Red: Connected to Vin (ESP32)
• Temp DQ Data Yellow: Connected to VP (ESP32)

PH Meter

• GND: Connected to GND (ESP32)
• VCC: Connected to Vin (ESP32)
• Signal: Connected to D21 (ESP32)

Dissolved Oxygen Sensor

• ground: Connected to GND (ESP32)
• vcc: Connected to Vin (ESP32)
• a: Connected to VN (ESP32)

ESP32 (30 pin)

• GND: Connected to GND (Temperature Sensor, PH Meter, Dissolved Oxygen Sensor, Turbidity Sensor, ATGM336H)
• Vin: Connected to VCC (Temperature Sensor, PH Meter, Dissolved Oxygen Sensor, Turbidity Sensor, ATGM336H)
• VP: Connected to Temp DQ Data Yellow (Temperature Sensor)
• VN: Connected to SIG (Turbidity Sensor), a (Dissolved Oxygen Sensor)
• D21: Connected to Signal (PH Meter)
• D23: Connected to TX (ATGM336H)
• D22: Connected to RX (ATGM336H)

DFRobot Gravity Analog Turbidity Sensor

• GND: Connected to GND (ESP32)
• VCC: Connected to Vin (ESP32)
• SIG: Connected to VN (ESP32)

ATGM336H

• GND: Connected to GND (ESP32)
• VCC: Connected to Vin (ESP32)
• TX: Connected to D23 (ESP32)
• RX: Connected to D22 (ESP32)

Documented 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