KevsRobots Learning Platform
By Kevin McAleer, 2 Minutes
Test the motors are working correctly by touching the positive and negative wires to the battery. They should spin enthusiastically!
If the motors do not spin when connecting to the battery, check that the wires are still soldered to the motor and haven’t come free when fitting (they are quite delicate). Also check the 9V battery is charged: a multimeter set to DC volts should read close to 9V. A flat battery is the most common reason a SMARS won’t move.

Quick quiz 1 of 2
What’s the difference between the powered and unpowered wheels?
Quick quiz 2 of 2
Your motors don’t spin when you test them. What should you check first?
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