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# Motor controller connections

In this video we show you how to attach and wire the L-298 motor controller board to Bit-zee's frame. Created by Karl Wendt.

## Want to join the conversation?

• How do you know if there are any problems with short circuits on the solder joints? Is there an efficient way to test it before it's installed and the robot is otherwise ready to go? If you missed a short circuit and went ahead and installed the motor controller, how would you troubleshoot that and realize that the problem is a short circuit on the motor controller?
• I found a multimeter for 16\$ online. You can use them to test if you circuit is working.
(1 vote)
• How difficult will it be to change out the batteries when they wear out?
• what i think is, all you have to do is undo the zip-ties then you can change them out with ease.
• How did you assemble the the machine you showed in the beginning of "Motor controller connections"?
(1 vote)
• I am creating a bitzee and using 4 motors with wheels to run it. But, I am only using one motor controller. So, I am using output of motor terminals 1 from motor controller to give to it 2 motors (1 and 2 on left side) and output of motor terminals 2 to other 2 motors 3 and 4 on right side. I am observing that my motors are running very slow. Could it be because the power is getting divided into 2 motors? Also, my bot is pretty heavy, especially due to 12v battery pack and other compenents.. Could this be the reason that it is slow? Can you please help / suggest on how to make it more faster?
(1 vote)
• HI Aryan,

Do you happen to know the specification for your motors. Specifically, what is the rated voltage and "speed? "

You could use math (C = 2πr) and a stopwatch to determine if the robot is traveling at an appropriate speed.

Do the motors get hot?

Regards,

APD
(1 vote)
• When you connecting two green wires do you need to heat and tape it
(1 vote)
• You completely skipped the explanation for what the wires for the 3 blue input terminals are... I'm assuming that's for the power supply, but does that mean the the motor controllers 5 green wires connecting to the micro-controller are also for powering the micro-controller?
(1 vote)
• how did you get so many energy piots!
(1 vote)
• how can I get all of the parts? it will be too expensive, and where can I get the Arduino?
(1 vote)
• What is Karl using to take off the green insulation around the wire when he discovers it's a tad too long?