A fully open source portable recorder. Its main use case is for recording bird song and also having a few other birding related features - creating lists (patch list, day list etc.), recording verbal field notes (very useful in the event of discovering a rarity or possible rarity), a counting feature (for example for WeBS counts - https://www.bto.org/volunteer-surveys/webs), conditions logging (temperature, humidity and pressure using the BME388 and SHT35-D) and if the user decides to solder one on a u-blox CAM-M8 GPS which comes with an integrated antenna for location logging used to log where certain birds were seen. I also plan on having a BNO005 nine axis absolute orientation sensor as I like cramming on sensors =D. All sensors will be optional, with footprints that can be populated if desired.
Also, in the future, I plan on adding a function for easy sea watching with which you can log each bird of a certain species you see and which direction via a few buttons - for example, one button for Guillemot, one for Common Scoter, one for East and one for West.