{"id":16,"date":"2023-06-27T08:57:20","date_gmt":"2023-06-27T08:57:20","guid":{"rendered":"https:\/\/learnlearn.uk\/stemrobotics\/?page_id=16"},"modified":"2024-10-21T15:01:59","modified_gmt":"2024-10-21T15:01:59","slug":"topic-3-dc-motors","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/stemrobotics\/topic-3-dc-motors\/","title":{"rendered":"Topic 3 \u2013 DC Motors & Servo Motors"},"content":{"rendered":"
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DC Motors<\/h2>\n
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Controlling a DC Motor<\/h3>\n

A DC 6V hobby motor is a type of direct current motor commonly used in hobbyist and DIY projects. These motors are popular among hobbyists due to their simplicity, affordability, and versatility.<\/p>\n

Hobby motors can be controlled using various methods, including adjusting the voltage applied to the motor, using PWM (Pulse Width Modulation) signals.<\/p>\n

Hobby motors are commonly used to drive wheels, propellers, and other moving parts in RC cars, boats, airplanes, and drones.<\/p>\n

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6V Motor with wheel<\/p><\/div>\n

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Lego DC Servo Motor<\/p><\/div>\n

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Single Motor<\/h2>\n
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Controlling a Single Motor<\/h3>\n
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Wiring Diagram<\/h3>\n

This is the wiring diagram for both DC Motors and Servo Motors for a single motor.<\/p>\n

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Click to enlarge<\/p><\/div>\n<\/div>

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Test Code<\/h3>\n

The code below alternates which Pin is high (either pin o or pin 1). This has the effect of reversing the current, which reverses the direction of rotation of the motor.<\/p>\n

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Two Motors<\/h2>\n
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Controlling two motors<\/h3>\n
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You can control two motors with a single motor control board. You simply wiring the the other motor to the opposite side and wiring the two more signal wires in from Pin 2 and Pin 8<\/p>\n

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Two Motor Test Code<\/h3>\n

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DFR05 Board<\/h2>\n
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Using motors with the DFR05 MotorBoard<\/h3>\n

The DFR05 is a breakout board for the Microbit the features a dedicated motor board driver which connects using the I2C protocol, meaning that most of the Microbits ports are left free for other purposes, such as for servos or sensors.<\/p>\n

Step 1 – Connect up the hardware<\/strong><\/p>\n

Setting up and coding the DFR05<\/a> is pretty straight forward.<\/p>\n

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Connecting motors to your Microbit is super easy with the DFR05 Motorboard.<\/p><\/div>\n

Points to note:<\/p>\n