def __init__(self, clk=23, dt=24, sw=25):
self.dt = dt
self.clk = clk
self.sw = sw
# variables needed to make the rotary encoder work
self.clkLastState = 0
self.counter = 0
self.switchState = 0
# setup gpio pins, event callbacks
self.setup_pins()
# Initialize I2C bus.
i2c = busio.I2C(board.SCL, board.SDA)
# Initialize amplifier.
self.__amp = adafruit_max9744.MAX9744(i2c)
self.__amp.volume = 0
self.__volume = 0
def __init__(self,
i2c_bus,
mute_pin=None,
name="amp0",
interval=0.1,
*args,
**kwargs):
Device.__init__(self, name=name, interval=interval, *args, **kwargs)
import adafruit_max9744
self.amp = adafruit_max9744.MAX9744(i2c_bus)
self.amp.volume = 0
self.mute = None
if mute_pin:
import digitalio
self.mute = digitalio.DigitalInOut(mute_pin)
self.mute.direction = digitalio.Direction.OUTPUT
# amp.volume_up()
# print("volume up")
# def down(pin):
# for i in range(5):
# amp.volume_down()
# print("volume up")
# io.add_event_detect(23, io.FALLING, up, bouncetime=200)
# io.add_event_detect(24, io.FALLING, down, bouncetime=200)
# Initialize I2C bus.
i2c = busio.I2C(board.SCL, board.SDA)
# Initialize amplifier.
amp = adafruit_max9744.MAX9744(i2c)
# Optionally you can specify a different addres if you override the AD1, AD2
# pins to change the address.
# amp = adafruit_max9744.MAX9744(i2c, address=0x49)
# Setting the volume is as easy as writing to the volume property (note
# you cannot read the property so keep track of volume in your own code if
# you need it).
amp.volume = 0 # Volume is a value from 0 to 63 where 0 is muted/off and
# 63 is maximum volume.
# In addition you can call a function to instruct the amp to move up or down
# a single volume level. This is handy if you just have up/down buttons in
# your project for volume:
# amp.volume_up() # Increase volume by one level.