I wish to build an OceanObserver-like system using the AudioMoth Dev devices. I can get the hydrophones, the acrylic enclosures and most of the components. Comparing the base boards in the OceanObserver to that of the AudioMoth Dev, it looks as though much of the functionality is all together in the AMDev board. The OceanObserver has a main board containing a Zynq XC7Z020 chip with dual core ARM and "FPGA fabric" and it would be nice to compare/contrast these chips/boards with that of the Gecko chip/board in the AMDev.
There are so-called "daughter boards" to add on to the main board of the OceanObserver to add functionality. I am wondering if the AMDev needs any enhancements/add-ons?
I appreciate any responses to the above build project, especially from Alex.
It depends what use case and specification you need. A free-floating AudioMoth Dev with some sort of LoRa, VHF or satellite beacon for recovery would be reasonably straightforward. Adding onboard processing and live communication of results would need a more powerful processor and probably quite a lot of engineering.