Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with various sensors and actuators, including multiple micro servos, a soil moisture interceptor, a soil moisture sensor, a rain/snow sensor, a Bluetooth module, and an LDR module. The Arduino UNO serves as the central control unit, reading sensor data and controlling the servos and Bluetooth module.

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. Micro servo 9G

   • Description: A small servo motor used for precise control of angular position.
   • Pins: GND, +5V, PWM

3. Soil Moisture Interceptor

   • Description: A sensor module used to measure soil moisture levels.
   • Pins: AO, DO, GND, VCC

4. SparkFun Soil Moisture Sensor

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

5. Rain/Snow Sensor - Board

   • Description: A sensor board used to detect rain or snow.
   • Pins: 1, 2, A0 (Analog), D0 (Digital), GND, VCC (5V)

6. YL-83 Rain Sensor - Detection Board

   • Description: A detection board used in conjunction with the rain/snow sensor.
   • Pins: POS, NEG

7. HC-05 Bluetooth Module

   • Description: A Bluetooth module used for wireless communication.
   • Pins: Key, VCC, GND, TXD, RXD, State

8. Module LDR

   • Description: A light-dependent resistor module used to measure light intensity.
   • Pins: VCC, GND, DO, AO

Wiring Details

Arduino UNO

• 3.3V connected to VCC of HC-05 Bluetooth Module
• 5V connected to:
  • +5V of all Micro servo 9G motors
  • VCC (5V) of Rain/Snow Sensor - Board
  • VCC of Soil Moisture Interceptor
  • VCC of Module LDR
• GND connected to:
  • GND of Soil Moisture Interceptor
  • GND of HC-05 Bluetooth Module
  • GND of Rain/Snow Sensor - Board
  • GND of all Micro servo 9G motors
  • GND of Module LDR
• A0 connected to DO of Soil Moisture Interceptor
• D13 connected to DO of Module LDR
• D12 connected to D0 (Digital) of Rain/Snow Sensor - Board
• D11 connected to TXD of HC-05 Bluetooth Module
• D10 connected to RXD of HC-05 Bluetooth Module
• D9 connected to PWM of Micro servo 9G
• D6 connected to PWM of Micro servo 9G
• D5 connected to PWM of Micro servo 9G
• D3 connected to PWM of Micro servo 9G

Micro servo 9G

• +5V connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• PWM connected to:
  • D9 of Arduino UNO
  • D6 of Arduino UNO
  • D5 of Arduino UNO
  • D3 of Arduino UNO

Soil Moisture Interceptor

• VCC connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• DO connected to A0 of Arduino UNO

SparkFun Soil Moisture Sensor

• VCC connected to VCC of Soil Moisture Interceptor
• GND connected to GND of Soil Moisture Interceptor

Rain/Snow Sensor - Board

• VCC (5V) connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• D0 (Digital) connected to D12 of Arduino UNO
• 1 connected to POS of YL-83 Rain Sensor - Detection Board
• 2 connected to NEG of YL-83 Rain Sensor - Detection Board

YL-83 Rain Sensor - Detection Board

• POS connected to 1 of Rain/Snow Sensor - Board
• NEG connected to 2 of Rain/Snow Sensor - Board

HC-05 Bluetooth Module

• VCC connected to 3.3V of Arduino UNO
• GND connected to GND of Arduino UNO
• TXD connected to D11 of Arduino UNO
• RXD connected to D10 of Arduino UNO

Module LDR

• VCC connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• DO connected to D13 of Arduino UNO

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 Documentation (documentation.txt)