Circuit Documentation

Summary of the Circuit

This circuit integrates a set of sensors and a buzzer module with an ESP32 Devkit V1 microcontroller. The purpose of the circuit is not explicitly stated, but based on the components used, it can be inferred that the circuit is designed to monitor environmental conditions such as humidity and vibrations. When certain conditions are met, the buzzer may be activated as an alert system. The ESP32 serves as the central processing unit, reading sensor data and controlling the buzzer output.

Component List

Humidity Sensor (YL-69)

• Pins: A0 (Analog Output), D0 (Digital Output), GND (Ground), VCC (Power Supply)
• Description: This sensor is used to measure the humidity in the environment.

ESP32 Devkit V1

• 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
• Description: The ESP32 is a microcontroller with Wi-Fi and Bluetooth capabilities, serving as the brain of the circuit.

Buzzer Module

• Pins: GND (Ground), Vcc (Power Supply), I/O (Input/Output)
• Description: This module emits a sound when it receives a signal, potentially used here as an alert mechanism.

SW-420 Vibration Sensor

• Pins: vcc (Power Supply), Ground, Digital output
• Description: This sensor detects vibrations and outputs a digital signal when a certain threshold is exceeded.

Wiring Details

Humidity Sensor (YL-69)

• VCC: Connected to the ESP32's VIN
• GND: Connected to the ESP32's GND
• A0: Connected to the ESP32's D34

ESP32 Devkit V1

• VIN: Connected to the VCC of Humidity Sensor, Buzzer Module, and Vibration Sensor
• GND: Connected to the GND of Humidity Sensor, Buzzer Module, and Vibration Sensor
• D19: Connected to the I/O of the Buzzer Module
• D34: Connected to the A0 of the Humidity Sensor
• D35: Connected to the Digital output of the Vibration Sensor

Buzzer Module

• Vcc: Connected to the ESP32's VIN
• GND: Connected to the ESP32's GND
• I/O: Connected to the ESP32's D19

SW-420 Vibration Sensor

• vcc: Connected to the ESP32's VIN
• Ground: Connected to the ESP32's GND
• Digital output: Connected to the ESP32's D35

Documented Code

No code has been provided for the microcontroller. To fully utilize the circuit, embedded code for the ESP32 Devkit V1 is required. The code should initialize the sensor readings, process the input data, and control the buzzer based on predefined conditions. Since the code is not available, this section cannot be completed at this time.