Circuit Documentation

Summary

This document provides a detailed overview of a circuit design that includes various sensors, a microcontroller, and power management components. The circuit is designed to interface multiple sensors with an ESP32 Devkit V1 microcontroller, which processes the sensor data. The power management is handled by a 7805 voltage regulator, which steps down the voltage from a 7.4V power source to a stable 5V supply.

Component List

1. ADXL345: A 3-axis digital accelerometer.
2. INA219: A current sensor for measuring voltage and current.
3. IR Sensor: An infrared sensor for object detection.
4. BMP280: A barometric pressure sensor.
5. ESP32 Devkit V1: A microcontroller with Wi-Fi and Bluetooth capabilities.
6. 7.4V Battery: A power source for the circuit.
7. 7805 Voltage Regulator: A regulator to step down the voltage from 7.4V to 5V.

Wiring Details

ADXL345

• GND: Connected to the common ground.
• VCC: Connected to the 3.3V supply from the ESP32 Devkit V1.
• SDA: Connected to D21 on the ESP32 Devkit V1.
• SCL: Connected to D22 on the ESP32 Devkit V1.

INA219

• GND: Connected to the common ground.
• VCC: Connected to the 3.3V supply from the ESP32 Devkit V1.
• SDA: Connected to D21 on the ESP32 Devkit V1.
• SCL: Connected to D22 on the ESP32 Devkit V1.

IR Sensor

• GND: Connected to the common ground.
• VCC: Connected to the 3.3V supply from the ESP32 Devkit V1.
• OUT: Connected to D5 on the ESP32 Devkit V1.

BMP280

• GND: Connected to the common ground.
• VCC: Connected to the 3.3V supply from the ESP32 Devkit V1.
• SDA: Connected to D21 on the ESP32 Devkit V1.
• SCL: Connected to D22 on the ESP32 Devkit V1.

ESP32 Devkit V1

• GND: Connected to the common ground.
• 3V3: Provides 3.3V supply to sensors.
• D21: Connected to SDA of ADXL345, INA219, and BMP280.
• D22: Connected to SCL of ADXL345, INA219, and BMP280.
• D5: Connected to OUT of the IR Sensor.
• VIN: Connected to Vout of the 7805 Voltage Regulator.

7.4V Battery

• +: Connected to Vin of the 7805 Voltage Regulator.
• -: Connected to the common ground.

7805 Voltage Regulator

• Vin: Connected to the + terminal of the 7.4V Battery.
• Gnd: Connected to the common ground.
• Vout: Connected to VIN of the ESP32 Devkit V1.

Code

No code is provided for this circuit.

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This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and code documentation. The wiring details section ensures that each component is clearly described with its respective connections, making it easier to understand and replicate the circuit.