project 120 spedometer and LED bike controller with yellow PCB printed at pcbway.com

at least my package arrived. this my story about unboxing package I ordered since oct 2019

https://www.youtube.com/watch?v=OsjlAVPtYdU

okey this time focus to build my project number 120. We create arduino nano project. This devide able to show the speedometer and controling LED bike.

well lets discuss abaut the schemes





thats it?  so go ahead buy the parts here the part list :



you must have completed parts, otherwise pending your project.

start build.

put the small part First.. and bigger next.

you must also inject the code into your nano. failed to do this session then you project die.

finnaly put the cord and watch..  any weird behaveiour



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