Voice Based Speed Control of DC Motor

Project Description:

1. AT89S52: The AT89S52 is a low power, high performance CMOS 8-bit microcontroller with 8k bytes of in-system programmable flash memory. This is a powerful microcontroller which provides high flexibility and cost-effective solution to many embedded control applications. It has the following standard features: 8K bytes of flash, 256 bytes of RAM, 32 I/O lines, watchdog timer, 2 data pointers, 3 16-bit timers/counters, on-chip oscillator and clock circuitry.
2. Relay: A relay is an electrically operated switch. It can handle the high power required to directly control an electric motor or other loads is called relay or contractor.
3. Voice Recognition: The carbon mice are also as carbon button microphone, button microphone, or carbon transmitter, is a type of microphone, a transducer that converts sound to an electrical audio signal. It consists of two metal plates separated by granules of carbon.
4. DC Motor: A DC Motor is a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. The most common types rely on the forces produced by magnetic fields, nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current flow in part of the motor.

Project Implementation:

1. You need to program for the voice recognition when the input is from carbon mice as given like 1 for some speed, 2 for speed so PWM need set at the program to the DC Motor.
2. Connect the Carbon Mice to the input of the Microcontroller
3. The output port connects the DC Motor so the speed is controlled by Controller.
4. Connect the buzzer to the controller and it sounds ON while it attains a high speed of the motor

Software requirements:

1. Keil Uvision 3: Keil Software makes C compilers, macro assemblers, real-time kernels, debuggers, simulators, integrated environments and evaluation boards for the 8051, 251, ARM and XC16x/C16x/ST10 microcontroller families
2. Programming language: Embedded C language

• Micro controller
• Relay
• DC motor
• Buzzer

• Voice Control
• Microcontroller
• Embedded Systems