Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with various components including an LCD screen, RTC module, ultrasonic sensor, micro servo, and an ESP-8266 controller. The circuit is designed to perform various tasks such as displaying information on the LCD, keeping track of time, measuring distance, controlling a servo motor, and enabling Wi-Fi communication.

Component List

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

Micro servo 9G

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

RTC DS3231

• Description: A real-time clock module with an I2C interface.
• Pins: 32K, SQW, SCL, SDA, VCC, GND

LCD screen 16x2 I2C

• Description: A 16x2 character LCD display with an I2C interface.
• Pins: SCL, SDA, VCC, GND

ESP-8266 Controller

• Description: A Wi-Fi module used for wireless communication.
• Pins: A0, RSV, SD3, SD5, SD1, CMD, D0, D1, D2, D3, D4, 3V3, GND, D5, D6, SD0, CLK, RST, EN, D7, D8, RX, TX, Vin, 5V

Ultrasonic Sensor

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

Wiring Details

Arduino UNO

• A4: Connected to SDA of LCD screen and RTC DS3231
• A5: Connected to SCL of LCD screen and RTC DS3231
• 5V: Connected to +VCC of Ultrasonic Sensor, VCC of RTC DS3231, VCC of LCD screen, and +5V of Micro servo
• GND: Connected to GND of Ultrasonic Sensor, GND of RTC DS3231, GND of LCD screen, GND of Micro servo, and GND of ESP-8266 Controller
• 3.3V: Connected to 3V3 of ESP-8266 Controller
• D9: Connected to PWM of Micro servo
• D7: Connected to Trigger of Ultrasonic Sensor
• D6: Connected to Echo of Ultrasonic Sensor
• D1: Connected to RX of ESP-8266 Controller
• D0: Connected to TX of ESP-8266 Controller

Micro servo 9G

• GND: Connected to GND of Arduino UNO
• +5V: Connected to 5V of Arduino UNO
• PWM: Connected to D9 of Arduino UNO

RTC DS3231

• SDA: Connected to A4 of Arduino UNO
• SCL: Connected to A5 of Arduino UNO
• VCC: Connected to 5V of Arduino UNO
• GND: Connected to GND of Arduino UNO

LCD screen 16x2 I2C

• SDA: Connected to A4 of Arduino UNO
• SCL: Connected to A5 of Arduino UNO
• VCC: Connected to 5V of Arduino UNO
• GND: Connected to GND of Arduino UNO

ESP-8266 Controller

• 3V3: Connected to 3.3V of Arduino UNO
• GND: Connected to GND of Arduino UNO
• RX: Connected to D1 of Arduino UNO
• TX: Connected to D0 of Arduino UNO

Ultrasonic Sensor

• +VCC: Connected to 5V of Arduino UNO
• Trigger: Connected to D7 of Arduino UNO
• Echo: Connected to D6 of Arduino UNO
• GND: 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.