Buzzer is not working with my MicroPython code - button

Question

I'm working on a buzzer that has to make a simple sound. But I can't figure out about how to make this buzzer work in MicroPython. I've already tried the following code but it is not doing much. I'm a little bit stuck at this.
import pycom
import machine
import time
from machine import Pin
import board
import pulseio
buzzer = pulseio.PWMOut(board.D16, variable_frequency=True)
def main():
buzzer.duty_cycle = ON
buzzer.frequency = 440
buzzer.duty_cycle = OFF
if __name__ == "__main__":
main()
For more information about what I use as materials:
Buzzer:https://datasheet4u.com/datasheet-pdf/Ningbo/KPT-1410/pdf.php?id=868269
The materials for my project is this:
https://pycom.io/product/lopy4/
https://pycom.io/product/expansion-board-3-0/
I think i'm getting close to it, but can't figure it out.

Answer 1

here is similar function to map function that you have used in arduino
def remap(value, leftMin, leftMax, rightMin, rightMax):
# Figure out how 'wide' each range is
leftSpan = leftMax - leftMin
rightSpan = rightMax - rightMin
# Convert the left range into a 0-1 range (float)
valueScaled = float(value - leftMin) / float(leftSpan)
# Convert the 0-1 range into a value in the right range.
return rightMin + (valueScaled * rightSpan)
for example, if your ADC values are between 2000 and 1000 (on purpose i show that higher ADC value mean lower actual value) you can use function above with following call to get percentage value:
percent_value = remap(
adc_pin.read(),
1000, 2200, # these values comes from experiment above when wet and dry
100, 1
)
and look at the samples in documentation how to make buzz
import array
import pulseio
import pwmio
import board
# 50% duty cycle at 38kHz.
pwm = pwmio.PWMOut(board.D13, frequency=38000, duty_cycle=32768)
pulse = pulseio.PulseOut(pwm)
# on off on off on
pulses = array.array('H', [65000, 1000, 65000, 65000, 1000])
pulse.send(pulses)
# Modify the array of pulses.
pulses[0] = 200
pulse.send(pulses)