Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller, a servo motor, a water flow sensor, and a 18650 Li-ion battery. The Arduino UNO serves as the central control unit, interfacing with the servo motor and water flow sensor to perform various tasks. The 18650 Li-ion battery powers the entire circuit.

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. Water Flow Sensor

   • Description: A sensor used to measure the flow rate of water.
   • Pins: Signal, Vcc, GND

4. 18650 Li-ion Battery

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

5. Comment

   • Description: A placeholder for comments or notes.
   • Pins: None

Wiring Details

Arduino UNO

• 5V connected to VCC of Servo
• 5V connected to Vcc of Water Flow Sensor
• GND connected to GND of Water Flow Sensor
• GND connected to - of 18650 Li-ion Battery
• Vin connected to + of 18650 Li-ion Battery
• GND connected to GND of Servo
• D9 connected to PWM of Servo
• D2 connected to Signal of Water Flow Sensor

Servo

• VCC connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• PWM connected to D9 of Arduino UNO

Water Flow Sensor

• Vcc connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• Signal connected to D2 of Arduino UNO

18650 Li-ion Battery

• + connected to Vin of Arduino UNO
• - connected to GND 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:

}

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.