I want to drive a DC motor with a L9110 H bridge IC using an Arduino UNO with an external 12V power supply like this
The breadboard for the L9110 he is using is the following :
If VCC is 12V and IB and IA of the L9110 are conected to 12V and the connected to the 5V pins of the Arduino … why the Arduino is not getting fried? I Guess the resistor has something to do with it but what is the reason for that? is there a better design?