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Velleman VMP403 User Manual
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Velleman VMP403 User Manual

Velleman VMP403 User Manual

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VMP403
USER MANUAL
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Summary of Contents for Velleman VMP403

  • Page 1 VMP403 USER MANUAL...

  • Page 2: Safety Instructions

    • Nor Velleman nv nor its dealers can be held responsible for any damage (extraordinary, incidental or indirect) – of any nature (financial, physical…) arising from the possession, use or failure of this product.

  • Page 3: Operation

    VMP403 Overview General ReSpeaker 2-mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for AI and voice applications. It allows you to build a powerful and flexible voice product that integrates services like Amazon Alexa Voice Service, Google Assistant, etc.
  • Page 4 VMP403 Programming 1. Connect the ReSpeaker to your Raspberry Pi 4. 2. Download and install the drivers for the ReSpeaker by entering following commands into the Command Prompt: sudo apt-get update sudo apt-get upgrade git clone cd seeed-voicecard sudo .*install.sh This may take a couple of minutes.
  • Page 5 VMP403 sudo reboot 3. Now, let’s check if the name of the ReSpeaker matches with the name of the source. Open the Command Prompt and enter following commands: cd speed-voicecard aplay arecord V. 01 – 15/04/2020 ©Velleman nv...
  • Page 6 VMP403 4. Now, it’s time to set the sound. Enter following command: alsamixer Press F6 and select the correct board (option 1). Set following values: Lower ‘ADC PCM’ to ± 25 or you will hear a loud beep. Set the recording’s volume with ‘Capture’.
  • Page 7 VMP403 5. Time to test. Connect a speaker or headphones, open a new Command Prompt and enter following command: arecord -f cd -Dhw:1 │ aplay -Dhw:1 Now, you should hear your own voice through the speaker/headphones. Activating the On-Board RGB LEDs...
  • Page 8 VMP403 3. Save the code with CTRL+S. 4. Execute with python userbutton.py. Check the terminal to see if the button is pressed. V. 01 – 15/04/2020 ©Velleman nv...
  • Page 9 © COPYRIGHT NOTICE The copyright to this manual is owned by Velleman nv. All worldwide rights reserved. No part of this manual may be copied, reproduced, translated or reduced to any electronic medium or otherwise without the prior written consent of the copyright holder.
  • Page 10 • Velleman® can decide to replace an article with an equivalent article, or to refund the retail value totally or partially when the complaint is valid and a free repair or replacement of the article is impossible, or if the expenses are out of proportion.