3.5 Small Fan¶
Now we use the TA6586 to drive the DC motor to make it rotate clockwise and counterclockwise. Since the DC motor requires a relatively large current, for safety reasons, here we use a power module to supply power to the motor.
Since DC motors require a high current, we use a Li-po Charger module to power the motor here for safety reasons.
Make sure your Li-po Charger Module is connected as shown in the diagram. Otherwise, a short circuit will likely damage your battery and circuitry.
3.5_small_fan.pyfile under the path of
kepler-kit-main/micropythonor copy this code into Thonny, then click “Run Current Script” or simply press F5 to run it.
Don’t forget to click on the “MicroPython (Raspberry Pi Pico)” interpreter in the bottom right corner.
For detailed tutorials, please refer to Open and Run Code Directly.
import machine import utime motor1A = machine.Pin(14, machine.Pin.OUT) motor2A = machine.Pin(15, machine.Pin.OUT) def clockwise(): motor1A.high() motor2A.low() def anticlockwise(): motor1A.low() motor2A.high() def stopMotor(): motor1A.low() motor2A.low() while True: clockwise() utime.sleep(1) stopMotor() utime.sleep(1) anticlockwise() utime.sleep(1) stopMotor() utime.sleep(1)
Once the program is running, the motor will rotate back and forth in a regular pattern.
If the motor is still spinning after you click the Stop button, you need to reset the RUN pin on the Pico W with a wire to GND at this time, and then unplug this wire to run the code again.
This is because the motor is operating with too much current, which may cause the Pico W to disconnect from the computer.