A DIY E-bike Conversion on the Cheap - IEEE Spectrum
Ebike binary throttle conversion for bikes with pedal assist only. Allows you to push a button to activate pedal assist rather than pedal. Uses $5 Arduino and $3 relay. Tested and works
TapLock uses tinyML on Arduino to protect your bike from thieves | Arduino Blog
New Electric Bicycle. MKIII | jacklithium's blog
EBike / EScooter motor controller, easy to DIY build and repair, with room for custom electronics board - applications - SimpleFOC Community
Digital Bike Speedometer (Arduino) by AngelR | Download free STL model | Printables.com