Bluetooth Air Horn

As a long time lurker I finally decided this project was worthy of a write up (also I’m killing for an instructables tshirt). I love this site and hope you enjoy this project.
IMPORTANT!Just a quick heads up, there are optional steps in this build. Your horn will be fully functional by step6 however I have included further options to monitor battery levels, change your Bluetooth device name and more!
Also if anything isnt clear please let me know! I’ll amend this write up with anything I may have missed.”


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