I bought a shield based on the L298N dual H-bridge chip (full disclosure...it was NOT from a well-known source and was poorly documented). It has several switches that allow you to change configuration in terms of where the motor is getting power and where the L298N is getting +5v logic voltage from…

Voltage/current interaction between Arduino and motor driver shield

MarkT October 16, 2012, 6:45pm 2

Does the shield use the Vin pin? That gets the input voltage to the Arduino regulator.

Topic		Replies	Views
Regulated power on Arduino shield Interfacing	3	1652	May 6, 2021
Power issues powering multiple arduinos Troubleshooting	11	4574	May 6, 2021
Driving a motor shield from external power Motors, Mechanics, Power and CNC	5	3139	May 6, 2021
Low-currrent regulator and high-current motor driver in parallel Motors, Mechanics, Power and CNC	7	1739	May 6, 2021
L298n, 24v motor and miss arduino Interfacing	19	12181	May 6, 2021