Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP32 microcontroller, a temperature sensor, a buzzer, a TDS sensor, a SparkFun soil moisture sensor, and a soil moisture interceptor. The circuit is designed to monitor environmental parameters such as temperature, soil moisture, and water quality, and it can provide alerts using a buzzer.

Component List

ESP32 (30 pin)

• Description: A versatile microcontroller with Wi-Fi and Bluetooth capabilities.
• 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

Temperature Sensor

• Description: A sensor used to measure temperature.
• Pins: Temp GND Black, Temp VDD Red, Temp DQ Data Yellow

Buzzer

• Description: An audio signaling device.
• Pins: PIN, GND

TDS Sensor

• Description: A sensor used to measure the total dissolved solids in water.
• Pins: AI, GND, 5V

SparkFun Soil Moisture Sensor

• Description: A sensor used to measure the moisture content in the soil.
• Pins: VCC, GND, SIG

Soil Moisture Interceptor

• Description: A device used to interface with the soil moisture sensor.
• Pins: AO, DO, GND, VCC

Wiring Details

ESP32 (30 pin)

• Vin is connected to:

  • Temp VDD Red (Temperature Sensor)
  • 5V (TDS Sensor)
  • VCC (Soil Moisture Interceptor)

• GND is connected to:

  • Temp GND Black (Temperature Sensor)
  • GND (TDS Sensor)
  • GND (Soil Moisture Interceptor)
  • GND (Buzzer)

• D27 is connected to:

  • PIN (Buzzer)

• EN is connected to:

  • AO (Soil Moisture Interceptor)

• VP is connected to:

  • AI (TDS Sensor)

• D26 is connected to:

  • Temp DQ Data Yellow (Temperature Sensor)

• D13 is connected to:

  • DO (Soil Moisture Interceptor)

Temperature Sensor

• Temp VDD Red is connected to:

  • Vin (ESP32)

• Temp GND Black is connected to:

  • GND (ESP32)

• Temp DQ Data Yellow is connected to:

  • D26 (ESP32)

Buzzer

• PIN is connected to:

  • D27 (ESP32)

• GND is connected to:

  • GND (ESP32)

TDS Sensor

• 5V is connected to:

  • Vin (ESP32)

• GND is connected to:

  • GND (ESP32)

• AI is connected to:

  • VP (ESP32)

SparkFun Soil Moisture Sensor

• VCC is connected to:

  • VCC (Soil Moisture Interceptor)

• GND is connected to:

  • GND (Soil Moisture Interceptor)

Soil Moisture Interceptor

• VCC is connected to:

  • Vin (ESP32)

• GND is connected to:

  • GND (ESP32)

• AO is connected to:

  • EN (ESP32)

• DO is connected to:

  • D13 (ESP32)

Code

No code is provided for this circuit.

This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and code documentation. Each component is described, and the wiring connections are detailed to ensure proper assembly and functionality of the circuit.