Circuit Documentation

Summary

This circuit is designed to control a robotic system using an Arduino UNO microcontroller and a DRIVER SHIELD L293D. The system includes various components such as motors, an ultrasonic sensor, a servo, an LED, a toggle switch, and a power supply. The Arduino UNO is programmed to control the motors and servo based on the distance measured by the ultrasonic sensor.

Component List

1. Arduino UNO

   • Description: 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. DRIVER SHIELD L293D

   • Description: Motor driver shield for Arduino.
   • Pins: RESET, 3.3V, 5V, GND, VIN, 9V, A0, A1, A2, A3, A4, A5, M2 (+), M2 GND (-), M1 (+), M1 GND (-), M3 (+), M3 GND (-), M4 GND (-), M4 (+), SERVO_2, SERVO_1, RX/D0, TX/D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, ARef, D13, D12, VCC (External Power Supply), GND (External Power Supply)

3. LED: Two Pin (red)

   • Description: Red LED with two pins.
   • Pins: cathode, anode

4. HC-SR04 Ultrasonic Sensor

   • Description: Ultrasonic distance sensor.
   • Pins: VCC, TRIG, ECHO, GND

5. Toggle Switch

   • Description: Three-pin toggle switch.
   • Pins: L1, COM, L2

6. 3xAABattery

   • Description: Battery pack with three AA batteries.
   • Pins: VCC, GND

7. Resistor

   • Description: 200 Ohms resistor.
   • Pins: pin1, pin2

8. Motor with reducer

   • Description: Motor with a reducer.
   • Pins: 3 - 6 VCC, GND

9. Servo

   • Description: Servo motor.
   • Pins: GND, VCC, PWM

10. DC Motor

    • Description: DC motor.
    • Pins: pin 1, pin 2

Wiring Details

Arduino UNO

• Reset connected to DRIVER SHIELD L293D RESET
• 3.3V connected to DRIVER SHIELD L293D 3.3V
• 5V connected to DRIVER SHIELD L293D 5V
• GND connected to DRIVER SHIELD L293D GND
• Vin connected to DRIVER SHIELD L293D VIN
• A0 connected to DRIVER SHIELD L293D A0
• A1 connected to DRIVER SHIELD L293D A1
• A2 connected to DRIVER SHIELD L293D A2
• A3 connected to DRIVER SHIELD L293D A3
• A4 connected to DRIVER SHIELD L293D A4
• A5 connected to DRIVER SHIELD L293D A5
• AREF connected to DRIVER SHIELD L293D ARef
• D13 connected to DRIVER SHIELD L293D D13
• D12 connected to DRIVER SHIELD L293D D12
• D11 connected to DRIVER SHIELD L293D D11
• D10 connected to DRIVER SHIELD L293D D10
• D9 connected to DRIVER SHIELD L293D D9
• D8 connected to DRIVER SHIELD L293D D8
• D7 connected to DRIVER SHIELD L293D D7
• D6 connected to DRIVER SHIELD L293D D6
• D5 connected to DRIVER SHIELD L293D D5
• D4 connected to DRIVER SHIELD L293D D4
• D3 connected to DRIVER SHIELD L293D D3
• D2 connected to DRIVER SHIELD L293D D2
• D1 connected to DRIVER SHIELD L293D TX/D1
• D0 connected to DRIVER SHIELD L293D RX/D0

DRIVER SHIELD L293D

• RESET connected to Arduino UNO Reset
• 3.3V connected to Arduino UNO 3.3V
• 5V connected to Arduino UNO 5V
• GND connected to Arduino UNO GND
• VIN connected to Arduino UNO Vin
• A0 connected to Arduino UNO A0
• A1 connected to Arduino UNO A1
• A2 connected to Arduino UNO A2
• A3 connected to Arduino UNO A3
• A4 connected to Arduino UNO A4
• A5 connected to Arduino UNO A5
• ARef connected to Arduino UNO AREF
• D13 connected to Arduino UNO D13
• D12 connected to Arduino UNO D12
• D11 connected to Arduino UNO D11
• D10 connected to Arduino UNO D10
• D9 connected to Arduino UNO D9
• D8 connected to Arduino UNO D8
• D7 connected to Arduino UNO D7
• D6 connected to Arduino UNO D6
• D5 connected to Arduino UNO D5
• D4 connected to Arduino UNO D4
• D3 connected to Arduino UNO D3
• D2 connected to Arduino UNO D2
• TX/D1 connected to Arduino UNO D1
• RX/D0 connected to Arduino UNO D0
• A4 connected to HC-SR04 Ultrasonic Sensor ECHO
• A5 connected to HC-SR04 Ultrasonic Sensor TRIG
• GND connected to HC-SR04 Ultrasonic Sensor GND
• 5V connected to HC-SR04 Ultrasonic Sensor VCC
• M3 (+) connected to Motor with reducer 3 - 6 VCC
• M3 GND (-) connected to Motor with reducer GND
• M4 GND (-) connected to Motor with reducer GND
• M4 (+) connected to Motor with reducer 3 - 6 VCC
• GND connected to Servo GND
• 5V connected to Servo VCC
• VCC (External Power Supply) connected to 3xAABattery VCC, DC Motor pin 2, LED: Two Pin (red) anode
• GND (External Power Supply) connected to Toggle Switch COM, Toggle Switch L2, DC Motor pin 1

LED: Two Pin (red)

• cathode connected to Resistor pin1
• anode connected to DRIVER SHIELD L293D VCC (External Power Supply)

HC-SR04 Ultrasonic Sensor

• VCC connected to DRIVER SHIELD L293D 5V
• TRIG connected to DRIVER SHIELD L293D A5
• ECHO connected to DRIVER SHIELD L293D A4
• GND connected to DRIVER SHIELD L293D GND

Toggle Switch

• L1 connected to Resistor pin2
• COM connected to 3xAABattery GND
• L2 connected to DRIVER SHIELD L293D GND (External Power Supply)

3xAABattery

• VCC connected to DRIVER SHIELD L293D VCC (External Power Supply)
• GND connected to Toggle Switch COM

Resistor

• pin1 connected to LED: Two Pin (red) cathode
• pin2 connected to