SunFounder GalaxyRVR Kit for Arduino, Release 1.0
As the motor spins, the gears translate this spin to the wheels of our rover. The use of gears provides a crucial benefit
- it increases torque, enabling the motor to move larger, heavier loads.
Isn’t it fascinating to see how science and engineering principles come to life? Motors are a perfect example of these
principles in action. By understanding how motors work, we can dream up and invent a wide array of machines. Let’s
dive deeper into the world of motors and unleash our creativity!
Step 2: Exploring Motor Functioning and Operation
Having understood what a motor is and its broad spectrum of applications, it’s time we venture into the heart of motor
operation.
In essence, a motor works on the principle of electromagnetism. When an electric current passes through a wire, it
generates a magnetic field around it. This magnetic field can interact with other magnetic fields, causing motion.
Consider a simple experiment where we connect a motor directly to a battery. The current from the battery flows into
the motor, triggering the internal mechanism of the motor to start spinning. This spinning action is due to the magnetic
forces inside the motor.
Interestingly, if you reverse the connections to the battery, the motor spins in the opposite direction! This happens
because the direction of current flow changes, altering the direction of the magnetic field and consequently the direction
of the motor’s spin.
Now we know that connecting the motor directly to a battery can make it spin, but often we want to control its movement
with code, so we include an Arduino board between them. But what would happen if we tried to connect the motor
directly to the signal pins on the Arduino board?
3.4. Lesson 4: Mastering the TT Motor 35
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