Portable Speaker
One day I was browsing reichelt.de and saw a small speaker on sale. A thought stuck me. Why not build a small portable speaker without bluetooth using cheap components? I quickly put together a list of design goals for my project:
- cheap speaker as audio source
- cheap powerbank as powersupply
- cheap audio amplifier as... amplifier
- unergonomic case with sharp edges and corners
- loud obnoxious clicking sound (always on)
- clicking frequency adjustable by two RC circuits hot-glued on top of the case
- hot-glue massacre inside™
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Needless to say it met all of the design goals mentioned above.
10/10 would build again.