Circuit Documentation

Summary

This circuit is designed to control two DC motors using an L298N motor driver, interfaced with an Arduino 101 microcontroller. The circuit also includes a servo motor, two IR sensors, and an HC-SR04 ultrasonic sensor for distance measurement. The power supply for the motor driver is provided by a 12V battery. The Arduino 101 controls the motors and reads signals from the sensors to perform various tasks based on the programmed logic. The circuit is suitable for applications such as robotics, where motor control and environmental sensing are required.

Component List

Arduino 101

• Microcontroller board based on the Intel Curie
• Provides PWM outputs and digital I/O pins
• Analog inputs for sensor interfacing
• I2C and SPI communication
• 3.3V and 5V power output

L298N DC Motor Driver

• Dual H-bridge motor driver
• Capable of driving two DC motors or one stepper motor
• Provides 5V output for external components
• Supports PWM for speed control

Servo

• Standard servo motor for precise angular control
• Requires PWM signal for operation

HC-SR04 Ultrasonic Sensor

• Ultrasonic distance measuring sensor
• Uses echo and trigger pins for distance calculation

DC Motor (x2)

• Standard DC motors for rotational motion
• Driven by the L298N motor driver

IR Sensor (x2)

• Infrared sensors for object detection
• Outputs a digital signal when an object is detected

Battery 12V

• Provides power to the L298N motor driver and motors

Wiring Details

Arduino 101

• D11 PWM/MOSI connected to L298N IN1
• D10 PWM/SS connected to L298N IN2
• D9 PWM connected to L298N IN3
• D8 connected to L298N IN4
• D5 PWM connected to Servo PWM
• 5V connected to Servo VCC, both IR sensors vcc, and HC-SR04 VCC
• GND connected to Servo GND, both IR sensors gnd, and HC-SR04 GND
• A0 connected to HC-SR04 ECHO
• A1 connected to HC-SR04 TRIG
• A2 connected to first IR sensor out
• A3 connected to second IR sensor out

L298N DC Motor Driver

• IN1 to IN4 controlled by Arduino 101
• OUT1 and OUT2 connected to first DC Motor
• OUT3 and OUT4 connected to second DC Motor
• 12V and GND connected to 12V Battery

Servo

• PWM signal from Arduino 101
• VCC and GND connected to Arduino 101 power outputs

HC-SR04 Ultrasonic Sensor

• VCC and GND connected to Arduino 101 power outputs
• ECHO and TRIG connected to Arduino 101 analog inputs

DC Motors

• Each motor connected to two outputs from L298N

IR Sensors

• out connected to Arduino 101 analog inputs
• vcc and gnd connected to Arduino 101 power outputs

Battery 12V

• Provides power to L298N 12V and GND

Documented Code

No code was provided for the microcontroller. The expected code should handle the initialization of the pins, setup of PWM for motor and servo control, and reading of sensor inputs to make decisions based on sensor data.

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Please note that the actual functionality of the circuit will depend on the specific code uploaded to the Arduino 101. The code should be written to initialize the pins according to the wiring details, generate PWM signals for motor and servo control, and read the sensor outputs to perform the desired actions.