(Voice Activated Home Control System)

Project Summary

• Control any IR activated device– Via voice command

• Learnable– Learn IR Code– Learn Voice Command

• Learn Multiple IR Commands Voice command

• User interface

Project Description

8051 Microprocessor Based System

IR input

Voice Commands

Keypad

IR output

Speaker

LCD

Input & Outputs

Project DescriptionModes of Operation

• Continuous Voice Recognition

• Command Recognized– IR Transmit

• Keypad Initiated Learn Mode– Learn Voice Command

– Learn IR Command(s)

Project DescriptionSub-systems

8051 Microprocessor

SensoryVoice Direct II

(Voice -recognition chip)

LCD(liquid crystal display)

Keyboard

IR Receiver

IR Transmitter

Microphone

Speaker

Project DescriptionSoftware Flowchart

yes

yes

Display:“Press Learn button

or Speak ”

Learn Button

Pressed?

VoiceCaptured

Recognized?

START

no

no

Retrieve corresponding IR command from External

Memory

Output IR command via IR transmitter interrupts

Capture Voice Input save to Ext. memory

Capture TTL IR pulses save to corresponding Ext. memory location

Project DescriptionDatasheet

• IR is TTL Level Controlled

• Communication with Voice Direct II Board is Serial Bit Stream

• Signal from microphone in mV

• IR receivers biased at 10 mA

• System programmed in assembly code

Project Description

• Test IR equipment

• Test IR commands

preliminary Lab work

IR Bit Stream

IR Modulated Bit

Bill of Materials

• Voice Direct II kit- RSC-300

- Speaker

- Microphone

• Micro Pac Evaluation Board

• IR hardware

- TSO-17(1,3,5)

- Dependent on frequency (will have 34,36,40 KHz)

Equipment List

• Remote Control

• IR test reception equipment

• Tektronix Scope

Schedule

• Troy• January

• Re-introduction to Emac Board

• February

• IR capture

• March

• IR transmit

• User interface

• April

• Integrate w/ Kyle’s software

• May

• Prepare for student expo and presentations

Schedule

• Kyle• January

• Re-introduction to Emac Board

• Learn Slave Mode of Voice Direct II

• February

• User Interface

• Voice Activation control software

• March

• Integrate User Interface with Voice Activation control software

• April

• Integrate w/ Troy’s software

• May

• Prepare for student expo and presentations