Below are their specifications.
Its’ rated current is 410mA but if it is stalled, it requires a whopping 1.8A. Stall current is the highest current that the motor will consume when the load is too much (causing the motor shaft to stop turning).
When choosing a suitable motor driver, the user have to take account of the highest current consumption and not the normal load current. In this case, the popular L293D will not be suitable for these motors.
Below are the comparison between L293 and L298 motor drivers.
Clearly L293D is not up to the job if the motor is under heavy load. Moreover the DIP package doesn’t dissipate heat as well as the MultiWatt15 package.
Because of the unusual pin configuration of the L298N, it is not suitable to be used on breadboards and donut boards. Therefore, I need to draw and make a PCB for it.
The schematic is as below.
Printed the layout on an A4 paper and cut to size.
Iron the layout onto the PCB.
I’m using a new type of copper etchant. It is clear in colour unlike the brownish ferric chloride.
Apparently it says that it’s environmentally friendly in the chinese text.
The solution will slowly turn blue when it’s dissolving the copper.
The finished product.