Hi, I'm working on a tachometer for my RC car and it appears that there's no other way to do it than using small DC motor as a dynamo. Arduino will read generated voltage and convert it to speed. But I ran into some potential problems. What will happen when there's a small voltage applied to the gro…

Making tachometer using arduino

kubajz22 April 30, 2018, 9:12am 4

I've just run a test and Arduino survived.
SOLVED

Topic		Replies	Views
Motor as Generator Interfacing	2	1040	May 6, 2021
Blocking -VDC General Guidance	35	8155	May 5, 2021
DC motor as tachometer - reading negative voltages Sensors	13	5606	May 6, 2021
Simple rotary encoder using a DC motor Exhibition	4	3760	May 6, 2021
Entrada Analogica y voltaje Español	4	1377	May 6, 2021