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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The IC can recognize 20 words, each word a length of 1. This 8 bit data can be directly connected to a port of Microcontroller for further action. Motor Control by Voice Recognition. As the RAM is volatilea 3v button battery is used to backup reccognition data.

To rotate LEFT a decimal value of 18 is assigned. The board requires 5v DC supply.


Blog Stats 1, hits Follow Blog via Email Enter your email address to follow this blog and receive notifications of new posts by email. Take care spech avoid using this board in Noisy places. May 16, at You are commenting using your WordPress. An 8 kB external RAM is needed to store data.

Say the target word into the onboard microphone near LED clearly.


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

To stop the motor decimal 08 is assigned. To display the command numbers 2 common cathode 7 segment displays are provided. The 8 bit data is passed through an octal latch IC 74HC Before starting the training process we can erase the previous memory. The calculation of arriving at these values are shown in table above. Notify me of new comments via email. Check out the table below to see how to achieve a number for a Word.

Provide a separate 12v DC power source to L board. By continuing to use this website, you agree to their use. Take a look around and grab the RSS feed to stay updated.

You may continue training new words in the circuit. To find out more, including how to control cookies, see here: Email required Address never made public. If the system has to work under noisy environments, background noise may corrupt the original data and leads to malfunctioning. Let hk2007 test the board by connecting to a Motor through a motor driver board L Thanks for dropping by alselectro!

Leave a Reply Cancel reply Enter your comment here In recogition training process user trains the IC by speaking words into the microphone and assigning a particular value for that word. It is used in Robotics to control motors um2007 to voice commands.


You are commenting using your Twitter account. A 12v adapter can be used as a power source, as the board has inbuilt rscognition regulator with heat sink. This can then be later connected to a microcontroller for further functions.

It is not necessary to train all word spaces. The heart of the circuit is the HM speech recognition IC.

Fill in your details below or click an icon to log in: RoboticsUncategorized — 1 Comment. This site uses cookies. In the training process user trains the IC by speaking words into the microphone and. Speech samples are acquired by a Microphone on board. Functioning of L can be understood from this post. Training Words for Recognition: This L can drive 2 motors at a time.

You are commenting using your Facebook account. The circuit will accept and recognize up to 20 words numbers 01 through