Circuit Documentation

Summary

This circuit integrates an IR sensor, an ESP32 microcontroller, and a SparkFun Soil Moisture Sensor, all powered by a DC Power Source. The IR sensor is used to detect the presence of objects or motion, while the soil moisture sensor measures the moisture level in the soil. The ESP32 microcontroller serves as the central processing unit, reading sensor data and potentially controlling other devices or communicating with a remote server. The DC Power Source provides the necessary power to all components in the circuit.

Component List

IR Sensor

• Pins: out, gnd, vcc
• Description: An infrared sensor capable of detecting object presence or motion.

ESP32

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

SparkFun Soil Moisture Sensor

• Pins: VCC, GND, SIG
• Description: A sensor designed to measure the volumetric content of water in soil.

DC Power Source

• Pins: Ground, Positive
• Description: Provides the electrical power required to operate the circuit.

Wiring Details

IR Sensor

• out: Connected to ESP32 (D15)
• gnd: Connected to ESP32 (GND) and DC Power Source (Ground)
• vcc: Connected to DC Power Source (Positive)

ESP32

• D15: Connected to IR Sensor (out)
• GND: Connected to IR Sensor (gnd) and SparkFun Soil Moisture Sensor (GND)
• VIN: Connected to DC Power Source (Positive)
• D34: Connected to SparkFun Soil Moisture Sensor (SIG)
• Other Pins: Not connected in this circuit

SparkFun Soil Moisture Sensor

• VCC: Connected to DC Power Source (Positive)
• GND: Connected to ESP32 (GND)
• SIG: Connected to ESP32 (D34)

DC Power Source

• Ground: Connected to IR Sensor (gnd) and SparkFun Soil Moisture Sensor (GND)
• Positive: Connected to IR Sensor (vcc), ESP32 (VIN), and SparkFun Soil Moisture Sensor (VCC)

Code Documentation

No code has been provided for the microcontroller. For this circuit to function, embedded code needs to be written and uploaded to the ESP32 microcontroller. The code should initialize the appropriate GPIO pins, set up communication protocols (if necessary), and implement logic for reading sensor data and responding to sensor inputs.