AudioMoth

I plan to buy such a board:

• https://www.openacousticdevices.info/
• https://github.com/OpenAcousticDevices/AudioMoth-Project source code

Hardware

See https://circuithub.com/projects/OpenAcoustics/AudioMoth

• microphone is SPM0408LE5H, datasheet
• processor is EFM32WG380F256

Software

My fork on github: https://github.com/bertrik/AudioMoth-Project

Compiling

platformio

Use this platformio.ini file:

 [platformio]
 src_dir = src,fatfs_src
 include_dir = inc,fatfs_inc
 [env:default]
 framework = zephyr
 platform = siliconlabsefm32
 board = efm32wg_stk3800

Install platformio:

 sudo apt install python3-pip
 sudo pip3 install platformio
 sudo pip3 install -U PyYAML

Compile it:

 pio run