Circuit Documentation

Summary

The circuit in question is designed to interface an ESP-8266 microcontroller with a pair of TCRT 5000 IR sensors and a pair of HC-SR04 ultrasonic sensors. The IR sensors are used to detect the presence and possibly the intensity of light reflecting off nearby objects, while the ultrasonic sensors are used to measure the distance to objects by emitting ultrasonic pulses and measuring the time it takes for the echoes to return.

Component List

TCRT 5000 IR Sensor

• Pins: VCC, GND, DO, AO
• Description: An infrared sensor capable of detecting the presence and intensity of light.
• Purpose: To detect objects and measure the intensity of reflected light.

HC-SR04 Ultrasonic Sensor

• Pins: VCC, TRIG, ECHO, GND
• Description: An ultrasonic distance sensor that can measure distances by emitting ultrasonic waves and detecting the reflected signal.
• Purpose: To measure the distance to objects in the path of the sensor.

ESP-8266 Controller

• 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
• Description: A microcontroller with Wi-Fi capabilities, suitable for IoT projects.
• Purpose: To process signals from the sensors and control the circuit's behavior.

Wiring Details

TCRT 5000 IR Sensor

• VCC: Connected to 3V3 of the ESP-8266 Controller.
• GND: Connected to GND of the ESP-8266 Controller.
• DO: One sensor's DO connected to D0 of the ESP-8266 Controller, and the other's to D7.
• AO: Both sensors' AO pins are connected together and to A0 of the ESP-8266 Controller.

HC-SR04 Ultrasonic Sensor

• VCC: Connected to 3V3 of the ESP-8266 Controller.
• TRIG: One sensor's TRIG connected to D2 of the ESP-8266 Controller, and the other's to D6.
• ECHO: One sensor's ECHO connected to D1 of the ESP-8266 Controller, and the other's to D8.
• GND: Connected to GND of the ESP-8266 Controller.

ESP-8266 Controller

• A0: Connected to AO of both TCRT 5000 IR Sensors.
• D0: Connected to DO of one TCRT 5000 IR Sensor.
• D1: Connected to ECHO of one HC-SR04 Ultrasonic Sensor.
• D2: Connected to TRIG of one HC-SR04 Ultrasonic Sensor.
• D6: Connected to TRIG of the other HC-SR04 Ultrasonic Sensor.
• D7: Connected to DO of the other TCRT 5000 IR Sensor.
• D8: Connected to ECHO of the other HC-SR04 Ultrasonic Sensor.
• 3V3: Provides power to both TCRT 5000 IR Sensors and both HC-SR04 Ultrasonic Sensors.
• GND: Common ground for all sensors and the ESP-8266 Controller.

Documented Code

No code has been provided for the microcontroller. The documentation of the code would typically include a description of the functionality, setup, and main loop, along with comments explaining the purpose of each function and variable. Since no code is available, this section cannot be completed.