Circuit Documentation

Summary

This circuit is designed to interface various sensors and actuators with an Arduino UNO microcontroller. The circuit includes temperature and water level sensors, a soil moisture module, a water pump, a fan, LED indicators, and relay modules for controlling high-power devices. The Arduino UNO serves as the central processing unit, reading sensor data and controlling the actuators based on programmed logic.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P
• It has 14 digital input/output pins, 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button.

TEMP (Temperature Sensor)

• Measures ambient temperature
• Typically has a digital output that interfaces with a microcontroller.

Water Pump

• An electromechanical device used to move water through the system.

Water Sensor

• Detects the presence of water in the environment.

Water Level Sensor

• Measures the level of water in a container or environment.

Fan

• An electric device used to create airflow.

LED: Two Pin (red)

• A red light-emitting diode used as an indicator.

LED Board

• A board with one or more LEDs, used for indication or illumination.

Soil Moisture Module

• Measures the moisture content in the soil.

Relay Module 5v-30v (Two instances)

• An electrically operated switch that allows a low-power circuit to control a high-power circuit.

5v Battery

• Provides a 5V power supply to the circuit.

Wiring Details

Arduino UNO

• 5V: Connected to the 5V power bus
• GND: Connected to the ground bus
• A1: Connected to TEMP sensor
• A2: Connected to Soil Moisture Module (Analog)
• A3: Connected to Water Level Sensor (SIG)
• D5: Connected to LED (anode)
• D4: Connected to LED Board (VCC)
• D3: Connected to Relay Module (trigger)
• D2: Connected to another Relay Module (trigger)

TEMP (Temperature Sensor)

• 5V: Connected to the 5V power bus
• D3: Connected to Arduino UNO (A1)
• GND: Connected to the ground bus

Water Pump

• Positive: Connected to Relay Module (common contact)
• Negative: Connected to the ground bus

Water Sensor

• +: Connected to Soil Moisture Module (positive)
• -: Connected to Soil Moisture Module (negative)

Water Level Sensor

• SIG: Connected to Arduino UNO (A3)
• VCC: Connected to the 5V power bus
• GND: Connected to the ground bus

Fan

• 5V: Connected to Relay Module (common contact)
• GND: Connected to the ground bus

LED: Two Pin (red)

• Cathode: Connected to the 5V power bus
• Anode: Connected to Arduino UNO (D5)

LED Board

• VCC: Connected to Arduino UNO (D4)
• GND: Connected to the ground bus

Soil Moisture Module

• Positive: Connected to Water Sensor (+)
• Negative: Connected to Water Sensor (-)
• Analog: Connected to Arduino UNO (A2)
• Digital: Not connected
• Ground: Connected to the ground bus
• VCC: Connected to the 5V power bus

Relay Module 5v-30v

• Common Contact: Connected to Water Pump (positive) and Fan (5V)
• Normally Open: Connected to 5v Battery (positive)
• Normally Closed: Not connected
• Trigger: Connected to Arduino UNO (D3 or D2)
• V-: Connected to the ground bus
• V+: Connected to the 5V power bus

5v Battery

• Positive: Connected to Relay Modules (normally open)
• Negative: Connected to the ground bus

Documented Code

Arduino UNO Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Additional Notes (documentation.txt)

No additional code documentation was provided.