Circuit Documentation

Summary of the Circuit

This circuit integrates a microcontroller with multiple sensors to monitor environmental conditions. The core of the circuit is an ESP32 Devkit V1 microcontroller, which is connected to a DHT11 temperature and humidity sensor, a YL-69 soil moisture sensor, and an MQ-6 LPG gas sensor. The sensors are powered by the microcontroller and send their data back to it for processing. The ESP32 Devkit V1 can then use this data for various applications, such as environmental monitoring or home automation systems.

Component List

ESP32 Devkit V1

• Description: A popular microcontroller with Wi-Fi and Bluetooth capabilities, suitable for a wide range of IoT applications.
• Pins: 3V3, GND, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, VIN

DHT11 Sensor V2

• Description: A basic, low-cost digital temperature and humidity sensor.
• Pins: GND, DAT, VCC

Humidity YL-69

• Description: A soil moisture sensor that can help in determining the moisture content of the soil.
• Pins: A0, D0, GND, VCC

MQ-6 SENSOR LPG GAS

• Description: A gas sensor designed for detecting LPG (liquefied petroleum gas) concentrations in the air.
• Pins: VCC, GND, A0, D0

Wiring Details

ESP32 Devkit V1

• 3V3: Not connected
• GND: Connected to GND pins of DHT11 Sensor V2, Humidity YL-69, and MQ-6 SENSOR LPG GAS
• D15: Not connected
• D2: Not connected
• D4: Not connected
• RX2: Not connected
• TX2: Not connected
• D5: Not connected
• D18: Not connected
• D19: Not connected
• D21: Not connected
• RX0: Not connected
• TX0: Not connected
• D22: Not connected
• D23: Not connected
• EN: Not connected
• VP: Not connected
• VN: Not connected
• D34: Not connected
• D35: Not connected
• D32: Not connected
• D33: Connected to D0 of Humidity YL-69
• D25: Not connected
• D26: Connected to DAT of DHT11 Sensor V2
• D27: Not connected
• D14: Connected to D0 of MQ-6 SENSOR LPG GAS
• D12: Not connected
• D13: Not connected
• VIN: Connected to VCC pins of DHT11 Sensor V2, Humidity YL-69, and MQ-6 SENSOR LPG GAS

DHT11 Sensor V2

• GND: Connected to GND of ESP32 Devkit V1
• DAT: Connected to D26 of ESP32 Devkit V1
• VCC: Connected to VIN of ESP32 Devkit V1

Humidity YL-69

• A0: Not connected
• D0: Connected to D33 of ESP32 Devkit V1
• GND: Connected to GND of ESP32 Devkit V1
• VCC: Connected to VIN of ESP32 Devkit V1

MQ-6 SENSOR LPG GAS

• VCC: Connected to VIN of ESP32 Devkit V1
• GND: Connected to GND of ESP32 Devkit V1
• A0: Not connected
• D0: Connected to D14 of ESP32 Devkit V1

Documented Code

No code has been provided for the microcontroller. To fully utilize the circuit, embedded code should be written and uploaded to the ESP32 Devkit V1. The code should initialize the sensors, read data from their respective pins, and handle the data accordingly (e.g., display, store, or transmit the data).

Please note that the documentation above is based on the provided information. For a complete and functional circuit, additional details such as power supply specifications, sensor calibration, and code implementation are required.