Circuit Documentation

Summary

This circuit involves an ESP8266 microcontroller, two HC-SR04 ultrasonic sensors, and a Micro Servo 9G. The ESP8266 serves as the central controller, interfacing with the ultrasonic sensors to measure distance and controlling the servo motor based on the sensor readings.

Component List

1. ESP8266

   • Description: A Wi-Fi enabled microcontroller used for various IoT applications.
   • Pins: 3V, G, D8, D7, D6, D5, D4, D3, D2, D1, D0, A0, S3, S2, S1, SC, S0, SK, EN, VIN, RST, VU

2. Micro Servo 9G

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

3. HC-SR04 Ultrasonic Sensor (Two units)

   • Description: A sensor used to measure distance by using ultrasonic waves.
   • Pins: VCC, TRIG, ECHO, GND

Wiring Details

ESP8266

• 3V is connected to:

  • VCC of HC-SR04 Ultrasonic Sensor 1
  • VCC of HC-SR04 Ultrasonic Sensor 2

• G is connected to:

  • GND of HC-SR04 Ultrasonic Sensor 1
  • GND of HC-SR04 Ultrasonic Sensor 2
  • GND of Micro Servo 9G

• D4 is connected to:

  • PWM of Micro Servo 9G

• D3 is connected to:

  • ECHO of HC-SR04 Ultrasonic Sensor 1

• D2 is connected to:

  • ECHO of HC-SR04 Ultrasonic Sensor 2

• D1 is connected to:

  • TRIG of HC-SR04 Ultrasonic Sensor 2

• D0 is connected to:

  • TRIG of HC-SR04 Ultrasonic Sensor 1

• VU is connected to:

  • +5V of Micro Servo 9G

Micro Servo 9G

• GND is connected to:

  • G of ESP8266

• +5V is connected to:

  • VU of ESP8266

• PWM is connected to:

  • D4 of ESP8266

HC-SR04 Ultrasonic Sensor 1

• VCC is connected to:

  • 3V of ESP8266

• TRIG is connected to:

  • D0 of ESP8266

• ECHO is connected to:

  • D3 of ESP8266

• GND is connected to:

  • G of ESP8266

HC-SR04 Ultrasonic Sensor 2

• VCC is connected to:

  • 3V of ESP8266

• TRIG is connected to:

  • D1 of ESP8266

• ECHO is connected to:

  • D2 of ESP8266

• GND is connected to:

  • G of ESP8266

Code

No code is provided for this circuit.