ESP32-LyraT Speech Recognition Board Sold for 22 Euros

Just last week, we wrote about Espressif ESP-ADF Audio development framework that can be used to develop smart speakers and other audio applications with ESP32 boards.

There was only one board with documentation at the time however: ESP32-Lyra-T. One tiny problem: it was not for sale just yet, but today Olimex has announced the board is in stock, selling it for 22 Euros.

Click to Enlarge

Main features:

  • Wireless module – ESP32-WROVER module with WiFi and Bluetooth LE
  • Audio
    • Many audio inputs – Wi-Fi, BT-audio, DLNA, 3.5mm audio Line-in
    • 3.5mm headphone jack
    • 2x microphones
    • Speaker connectors
  • Storage – micro SD slot
  • Debugging – JTGA header, USB UART
  • Misc  – Touch sense buttons, function/boot/reset keys,  DIP switch for configuration
  • Power – 5V via micro USB port; battery header + charger chip

You’ll find documentation on Espressif website (user guide) as well as on Github’s ESP-ADF (getting started guide).

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crashoverride
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crashoverride

“Display – LCD connector”
“Camera – Camera connector”

Neither of these appear to be present on the board.

Jon Smirl
Member

Those are SPI connected, so you would change the mode of the JTAG connector. This is a tiny $1 SOC, it does not have full blown camera and LCD support.

If you want a video capable camera and display this is not the right chip for you.