a few days ago I bought some of the Grove - Vibration Motor and a Grove Base-Shield 1.3.
Now, after I put all together, I had to realize that by default it is not possible to control the intensity of the vibration motors.
After some research I saw that I have to use a transistor or a h-bridge to control the input voltage of the vibration motors.
Is there another way to control the intensity (voltage) of the motors by using only the Grove Shield or the Arduino??
If not, is there another Grove Shield that will enable me to control the speed of the vibration motors?
Please help me. I need this motors for an university-project.
Thank you very much!