Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with a Servo motor, an Ultrasonic Sensor, and a SparkFun Soil Moisture Sensor. The circuit is powered by a 18650 Li-ion Battery. The Arduino UNO controls the Servo motor and reads data from the Ultrasonic Sensor and Soil Moisture Sensor.

Component List

1. Arduino UNO

   • Description: A microcontroller board based on the ATmega328P.
   • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

2. Servo

   • Description: A motor that can be controlled to rotate to a specific angle.
   • Pins: GND, VCC, PWM

3. Ultrasonic Sensor

   • Description: A sensor used to measure distance by using ultrasonic waves.
   • Pins: +VCC, Trigger, Echo, GND

4. SparkFun Soil Moisture Sensor

   • Description: A sensor used to measure the moisture level in the soil.
   • Pins: VCC, GND, SIG

5. 18650 Li-ion Battery

   • Description: A rechargeable lithium-ion battery.
   • Pins: -, +

Wiring Details

Arduino UNO

• 5V is connected to:

  • Servo (VCC)
  • Ultrasonic Sensor (+VCC)
  • SparkFun Soil Moisture Sensor (VCC)

• GND is connected to:

  • Servo (GND)
  • Ultrasonic Sensor (GND)
  • SparkFun Soil Moisture Sensor (GND)
  • 18650 Li-ion Battery (-)

• Vin is connected to:

  • 18650 Li-ion Battery (+)

• A0 is connected to:

  • SparkFun Soil Moisture Sensor (SIG)

• D10 is connected to:

  • Servo (PWM)

• D9 is connected to:

  • Ultrasonic Sensor (Trigger)

• D8 is connected to:

  • Ultrasonic Sensor (Echo)

Servo

• VCC is connected to:

  • Arduino UNO (5V)

• GND is connected to:

  • Arduino UNO (GND)

• PWM is connected to:

  • Arduino UNO (D10)

Ultrasonic Sensor

• +VCC is connected to:

  • Arduino UNO (5V)

• GND is connected to:

  • Arduino UNO (GND)

• Trigger is connected to:

  • Arduino UNO (D9)

• Echo is connected to:

  • Arduino UNO (D8)

SparkFun Soil Moisture Sensor

• VCC is connected to:

  • Arduino UNO (5V)

• GND is connected to:

  • Arduino UNO (GND)

• SIG is connected to:

  • Arduino UNO (A0)

18650 Li-ion Battery

• + is connected to:

  • Arduino UNO (Vin)

• - is connected to:

  • Arduino UNO (GND)

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:

}

Documentation (documentation.txt)

This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino UNO microcontroller.