# Project objective: To test a passive buzzer to play an alarm sound at one second interval
#
# Hardware and connections used:
#   Passive buzzer GND to Raspberry Pi Pico GND
#	Passive buzzer + Pin to GPIO Pin 15
#
# Programmer: Adrian Josele G. Quional

# if passive buzzer is used, import the Speaker class from picozero
from picozero import Speaker
from time import sleep
import machine
from machine import Pin

# creating a Speaker object
speaker = Speaker(15)
redled = Pin(16, mode=Pin.OUT)                  # enable GP16 as output to drive the LED
greenled = Pin(17, mode=Pin.OUT) 

def test(timer1):
    print("Test print timer1")
    redled.toggle()
def test2(timer2):
    print("Test print timer2")
    greenled.toggle()
#tim = machine.Timer(0)                                   # create a timer object using timer 3
#tim.init(mode=Timer.PERIODIC)                    # initialize it in periodic mode
#tim_ch = tim.channel(Timer.A, freq=5)            # configure channel A at a frequency of 5Hz
#tim_ch.irq(handler=lambda t:led.toggle(), trigger=Timer.TIMEOUT)        # toggle a LED on every cycle of the timer

timer1 = machine.Timer()
delta_time = 500  # Time in milliseconds
timer1.init(period=delta_time, mode=machine.Timer.PERIODIC,  callback=test)
timer2 = machine.Timer()
delta_time = 1000  # Time in milliseconds
timer2.init(period=delta_time, mode=machine.Timer.PERIODIC,  callback=test2)

# continuously beep at 1 sec interval while the board has power
# note: a passive buzzer can also be used to play different tones
while True:
    speaker.on()
    sleep(1)
    speaker.off()
    sleep(1)