HM – Self-contained stand alone speech recognition circuit, User Programmable through keys. 2 No’s of 7-Segment Display (To Display Voice Recognize. The heart of the circuit is the HM speech recognition IC. AVR SELF LEARNING KIT–Interfacing 16 x 2 LCD in 8 bit ModeIn “AVR. Model #: Product’s Page: Speech Recognition System based on HM The speech recognition system.

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An 8 kB external RAM is needed to store data.

This can then be later connected to a microcontroller for further functions. The heart of the circuit is the HM speech recognition IC. To stop the motor decimal 08 is assigned. The calculation of arriving at these values are shown in table above.

To rotate LEFT a decimal value of 18 is assigned. Speech samples are acquired by a Microphone on board. Check out the table recogition to see how to achieve a number for a Word. Blog Stats 1, hits Follow Blog via Email Enter your email address to follow this blog and receive notifications of new posts by email.

Let us test the board by connecting to recotnition Motor through a motor driver board L Email required Address never made public. You are commenting using your Facebook account.


It is used in Robotics to control motors according to voice commands. Leave a Reply Cancel reply Enter your comment here Training Words for Recognition: As the RAM is volatilea 3v button battery is used to backup stored data.

Notify me of new comments via email. The board requires 5v DC supply. In the training process user trains the IC by speaking words into the microphone and. Fill in your details below or click an icon to log in: It is not necessary to train all word spaces.

If the system has to work under noisy environments, background noise may corrupt recognigion original data and leads to malfunctioning. Motor Control by Voice Recognition. Take care to avoid using this board in Noisy places.

This L can drive 2 motors at reccognition time. Before starting the training process we can erase the previous memory.

In the training process user trains the IC by speaking words into the microphone and assigning a particular value for that word. The 8 bit data is passed through an octal latch IC 74HC You are commenting using your WordPress. To display the command numbers 2 common cathode 7 segment displays are provided.



Thanks for dropping by alselectro! The IC can recognize 20 words, each word a length of 1. Say the target word into the onboard microphone near LED clearly. May 16, at You are commenting using your Twitter account.

Voice Recognition board HM – How to control a motor using voice commands | alselectro

This site uses cookies. Provide a separate 12v DC power source to L board. By continuing to use this website, you agree reckgnition their use.

To find out more, including how to control cookies, see here: Functioning of L can be understood from this post. RoboticsUncategorized — 1 Comment. This 8 bit data can be directly connected to a port of Microcontroller for further action.

The circuit will accept and recognize up to 20 words numbers 01 through You may continue training new words in the circuit. A 12v adapter can be used as a power source, as the board has inbuilt 5v regulator with heat sink.

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