“This sensor works really well with a Raspberry Pi Pico. It is well built and very easy to connect up with the supplied cable. It takes a little bit of effort to use with a Pico as this microcontroller is not in the linked Wiki documentation – which is incomplete – no list of pre-programmed key words. I found this video very helpful and it provides some excellent ‘get you started’ code and an excellent Pico library.
https://nerdcave.xyz/docs/raspberry-pi-pico/tutorials/voice-recognition-sensor-module?
_highlight=voice&_highlight=recognition
Teaching the sensor your own works is very easy and I found it to be very accurate in recognising my words. My only regret is that there is not more space for user defined words/phrases as most of the built in ones are of little practical use. It is quick and easy to delete the current set of user defined words and replace them with others.
I’ve found it to be easy to control with a Pi Pico using MicroPython and I2C communication. It is great fun – a great addition to my growing list of sensors.
Tony Goodhew
1 April 2026”
