Microphone Module I2S Interface Case

Last crawled date: 4 years, 4 months ago

I made this to house this microphone module...
https://www.ebay.com/itm/Omnidirectional-Microphone-Module-I2S-Interface-INMP441-MEMS-Low-Power-for-ESP32/274119515372
I'll be putting it underneath a bee hive to listen for swarm indications. See here...
https://www.thingiverse.com/groups/raspberry-pi564/forums/general/topic:40633
Use thin plastic from a grocery bag to shield the module from the elements. Of course trim off the excess, maybe put a wrap of electric tape on the seam. The stem is made for a 3/8" hole (10mm).
Here's some Pi enclosures to use it with.
https://www.thingiverse.com/thing:3970641
https://www.thingiverse.com/thing:3894010
Follow the adafruit tutorial (I didn't do the rpi-update)....
https://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout/raspberry-pi-wiring-and-test
Then you can use the command
cvlc -vvv alsa://dmic_sv --sout '#transcode{acodec=ulaw}:rtp{sdp=rstp://:8554}'
to stream audio available at
vlc rtsp://your.Pi.IP.address:8554/
You will need to install VLC media player on the Pi. This module will not work if Pigpio is running. I think it can be fixed to where they will work together, but I haven't tested it yet. See here....
http://abyz.me.uk/rpi/pigpio/faq.html#Sound_isnt_working