The main aim of this project is to design a voice-based speed control of DC motor using wireless Bluetooth technology. User can control the speed of DC motor using android based voice commands through Bluetooth. This project makes a use of voltage sensor to measure voltage of DC motor. This project makes use of PIC Microcontroller, which is programmed, with the help of embedded C instructions. This Microcontroller is capable of communicating with input and output modules. If the user can send the voice command from Bluetooth application this data received by HC-05 Bluetooth module and fed as same to the microcontroller. Based on the received command microcontroller will control the speed of DC motor. Also, microcontroller will measure the voltage of the DC motor through voltage sensor will be display on LCD. The microcontroller is loaded with a program written in embedded ‘C’ language to perform the task.        

The major features of this project are:

1. Design a voice-based speed control of DC motor.
2. Monitoring the DC motor voltage on LCD.
3. Using Bluetooth application to control the DC motor.
4. To achieving this tsk using PIC microcontroller.

         

Main blocks in this project:

1. Regulated power supply.
2. PIC Microcontroller.
3. HC-05 Bluetooth.
4. Bluetooth application.
5. DC motor with driver.
6. Voltage Sensor.
7. LCD display.
8. Crystal oscillator.
9. LED indicators.
10. Reset Button

             

Software’s used in this project:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

            Block Diagram:        

video: