def __init__(self, chan, cs, xdim, ydim):
self.spi = SPI(chan, SPI.MASTER, baudrate=1000000, polarity=0, phase=0, firstbit=SPI.LSB)
self.xdim = xdim
self.ydim = ydim
if not isinstance(cs, Pin):
cs = Pin(cs)
cs.value(0)
cs.init(Pin.OUT_PP)
self.cs = cs
self.usleep = udelay
self.lines = [bytearray(xdim//8) for i in range(ydim)]
self.changed = set()
def declare_channel(self, channel, direction):
try:
self.available_pins.index(channel)
if self._find_channel(channel):
return ;
pin = Pin(channel)
if direction:
pin.init(Pin.OUT_PP)
else:
pin.init(Pin.IN, Pin.PULL_UP)
self.channels += [pin]
except:
pass
class GroveUltrasonic(object):
def __init__(self, pin):
self.dio = Pin(pin)
def value(self):
dt=-1
while dt<0:
self.dio.init(Pin.OUT)
self.dio.value(0)
utime.sleep_us(2)
self.dio.value(1)
utime.sleep_us(10)
self.dio.value(0)
self.dio.init(Pin.IN)
dt = time_pulse_us(self.dio, 1, 100000)
return (dt / 29 / 2) # cm
def write_frame(self):
"""
Send a DMX frame
"""
# DMX needs a 88us low to begin a frame,
# 77uS us used because of time it takes to init pin
dmx_uart = Pin(tx_pins[self.port], Pin.OUT_PP)
dmx_uart.value(0)
udelay(74)
dmx_uart.value(1)
# Now turn into a UART port and send DMX data
dmx_uart = UART(self.port)
dmx_uart.init(250000, bits=8, parity=None, stop=2)
#send bytes
dmx_uart.write(self.dmx_message)
#Delete as its going to change anyway
del (dmx_uart)
class Pushbutton(PushbuttonBase):
def __init__(self,
pin,
pullup=PULL_UP_ENABLED,
defaultState=DEFAULT_STATE_HIGH):
#self._pin = pin
self._pin = Pin("Y7", Pin.IN)
self._pullup = pullup
self._defaultstate = defaultState
initialized = True # This class is always initialised and doens't need to initialised before
# button
if (self._pullup == PULL_UP_ENABLED):
self._pin.init(Pin.IN, Pin.PULL_UP)
else:
self._pin.init(Pin.IN, Pin.PULL_NONE)
time.sleep_us(5)
def isPressed(self):
return (self._pin.value() != self._defaultstate)
def init(timer_id=2, nc_pin='Y3', gnd_pin='Y4', vcc_pin='Y1', data_pin='Y2'):
global nc
global gnd
global vcc
global data
global micros
global timer
# Leave the pin unconnected
if nc_pin is not None:
nc = Pin(nc_pin)
nc.init(Pin.OUT_OD)
nc.high()
# Make the pin work as GND
if gnd_pin is not None:
gnd = Pin(gnd_pin)
gnd.init(Pin.OUT_PP)
gnd.low()
# Make the pin work as power supply
if vcc_pin is not None:
vcc = Pin(vcc_pin)
vcc.init(Pin.OUT_PP)
vcc.high()
# Configure the pid for data communication
data = Pin(data_pin)
# Save the ID of the timer we are going to use
timer = timer_id
# setup the 1uS timer
micros = pyb.Timer(timer, prescaler=83, period=0x3fffffff) # 1MHz ~ 1uS
# Prepare interrupt handler
ExtInt(data, ExtInt.IRQ_FALLING, Pin.PULL_UP, None)
ExtInt(data, ExtInt.IRQ_FALLING, Pin.PULL_UP, edge)
from pyb import Pin
p = Pin('X1', Pin.IN)
print(p)
print(p.name())
print(p.pin())
print(p.port())
p = Pin('X1', Pin.IN, Pin.PULL_UP)
p = Pin('X1', Pin.IN, pull=Pin.PULL_UP)
p = Pin('X1', mode=Pin.IN, pull=Pin.PULL_UP)
print(p)
print(p.value())
p.init(p.IN, p.PULL_DOWN)
p.init(p.IN, pull=p.PULL_DOWN)
p.init(mode=p.IN, pull=p.PULL_DOWN)
print(p)
print(p.value())
p.init(p.OUT_PP)
p.low()
print(p.value())
p.high()
print(p.value())
p.value(0)
print(p.value())
p.value(1)
print(p.value())
p.value(False)
print(p.value())
pin = Pin(pin_map[0], mode=Pin.OPEN_DRAIN, pull=Pin.PULL_UP) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_DOWN) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_NONE) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.LOW_POWER) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.MED_POWER) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.HIGH_POWER) pin = Pin(pin_map[0], mode=Pin.OUT, drive=pin.LOW_POWER) pin = Pin(pin_map[0], Pin.OUT, Pin.PULL_DOWN) pin = Pin(pin_map[0], Pin.ALT, Pin.PULL_UP) pin = Pin(pin_map[0], Pin.ALT_OPEN_DRAIN, Pin.PULL_UP) test_pin_af() # try the entire af range on all pins # test pin init and printing pin = Pin(pin_map[0]) pin.init(mode=Pin.IN) print(pin) pin.init(Pin.IN, Pin.PULL_DOWN) print(pin) pin.init(mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.LOW_POWER) print(pin) pin.init(mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.HIGH_POWER) print(pin) # test value in OUT mode pin = Pin(pin_map[0], mode=Pin.OUT) pin.value(0) pin.toggle() # test toggle print(pin()) pin.toggle() # test toggle again print(pin())
from pyb import Pin
p = Pin('X1')
print(p)
print(p.name())
print(p.pin())
print(p.port())
p = Pin('X1', Pin.IN, Pin.PULL_UP)
#p = Pin('X1', Pin.IN, pull=Pin.PULL_UP)
print(p.value())
p.init(p.IN, p.PULL_DOWN)
#p.init(p.IN, pull=p.PULL_DOWN)
print(p.value())
p.init(p.OUT_PP)
p.low()
print(p.value())
p.high()
print(p.value())
p.value(0)
print(p.value())
p.value(1)
print(p.value())
p.value(False)
print(p.value())
p.value(True)
print(p.value())
class RS485(object):
def __init__(self, uart_num, pin_rw, dev_id):
self.error = []
self.uart = UART(uart_num)
self.uart.init(57600, bits=8, parity=0, timeout=10, read_buf_len=64)
self.pin_rw = Pin(pin_rw)
self.pin_rw.init(Pin.OUT_PP)
self.pin_rw.value(0)
self.dev_id = dev_id
self.file_parts = 0
self.file_parts_i = 1
self.file_is_open = False
def check_lan(self):
res = []
uart = self.uart
try:
buf = uart.readall()
if buf:
buf = buf.decode("utf-8")
LED(2).toggle()
for pack in buf.split(chr(0x0)):
if pack:
try:
data = False
data = loads(pack)
if len(data) > 0 and data[0] == self.dev_id:
if data[2][0] == "SET_CONFIG_FILE":
res = [data]
if data[2][2] == False:
self.file_parts = data[2][1]
self.file_parts_i = 1
self._write_config(True, '')
self.file_is_open = True
else:
if self.file_is_open:
if self.file_parts_i == data[2][1]:
self._write_config(False, data[2][2])
if self.file_parts_i == self.file_parts:
self.file_is_open = False
self.file_parts_i += 1
else:
res = [[self.dev_id, 3]]
self.error += ["Error 3 %s" % (data)]
self.file_is_open = False
break
else:
res = [[self.dev_id, 3]]
self.error += ["Error 4 DATA: %s" % (data)]
break
else:
self.file_is_open = False
res = [data]
except Exception as e:
res = [[self.dev_id, 3]]
if data:
self.error += ["Error 1 {}".format(e.args) + " DATA: %s" % (data)]
else:
self.error += ["Error 1 {}".format(e.args) + " PACK: %s" % (pack)]
LED(4).on()
except Exception as e:
res = [[self.dev_id, 3]]
self.error += ["Error 2 {}".format(e.args)]
LED(4).on()
return res
def send_pack(self, pack_type, pack_data):
pin_rw = self.pin_rw.value
uart = self.uart
pin_rw(1)
try:
buf = [self.dev_id, pack_type, pack_data]
data = dumps(buf).encode("utf-8")
data += bytearray([0x0])
uart.write(data)
except:
#print("Возникла ошибка при отправке пакета")
#print(data)
LED(3).on()
pin_rw(0)
def _write_config(self, is_start, data):
if is_start:
f = open("config.py", "w")
else:
f = open("config.py", "a")
try:
f.write(data)
except:
pass
f.close()
from pyb import ADC, I2S, Timer, I2C, Pin
pot = ADC('Y12')
hpctl = Pin('Y11')
hpctl.init(hpctl.OUT_PP)
hpctl.high()
i2c = I2C(2, I2C.MASTER)
# i2c.init(i2c.MASTER)
# Might do a 'try' here to make sure both i2c devices are working:
l = i2c.scan()
for i in l:
print(i)
#> [26, 96]
# Set Headphone Amp chip registers:
i2c.mem_write(
0xc0, 96, 1
) # control register: enable both amplifier channels, activate stereo mode
i2c.mem_write(0x35, 96,
2) # volume register; unmute both channels, set gain to ~0dB
i2c.mem_write(0x00, 96,
3) # output tri-state register; set both channels to output mode
# Set codec registers:
# THe SSM2604 uses a register addressing scheme that does not map directly to the uPy
# mem_read / mem_write methods.
# There are a total of 11 9-bit registers (R0-R9 and R15) which are selected using a
# 7-bit address. Register writes are constructed using the 'send' method:
# i2c.send('0b<7-bit register address><9-bit register data>', 26)
# Register reads can use 'mem_read' but the register address must be multiplied by 2
pin = Pin(pin_map[0], mode=Pin.OPEN_DRAIN, pull=Pin.PULL_UP) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_DOWN) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_NONE) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.LOW_POWER) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.MED_POWER) pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.HIGH_POWER) pin = Pin(pin_map[0], mode=Pin.OUT, drive=pin.LOW_POWER) pin = Pin(pin_map[0], Pin.OUT, Pin.PULL_DOWN) pin = Pin(pin_map[0], Pin.ALT, Pin.PULL_UP) pin = Pin(pin_map[0], Pin.ALT_OPEN_DRAIN, Pin.PULL_UP) test_pin_af() # try the entire af range on all pins # test pin init and printing pin = Pin(pin_map[0]) pin.init(mode=Pin.IN) print(pin) pin.init(Pin.IN, Pin.PULL_DOWN) print(pin) pin.init(mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.LOW_POWER) print(pin) pin.init(mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.HIGH_POWER) print(pin) # test value in OUT mode pin = Pin(pin_map[0], mode=Pin.OUT) pin.value(0) pin.toggle() # test toggle print(pin()) pin.toggle() # test toggle again print(pin())
class Encoder():
"""
Abstracts a quadrature encoder to give a tick count.
The count is a signed integer starting at zero. It wraps the count from the
attached timer to give a seamless and continuous tick count. Overflows of
the internal timer counter register should be adequatly handled. If
overflows or weird behaviour occurs around the overflow points, try
increasing Encoder.HYSTERESIS.
Note: Only works on pin pairs 'X1' & 'X2', 'X9' & 'X10', or 'Y1', 'Y2'. The
timer will be automatically selected. Both Timer 2 and 5 work for 'X1' &
'X2', but Timer 5 is preferred because Timer 2 is used for LED PWM but both
can be used by changing the values of Encoder.AF_MAP.
"""
# Constant for decoding in single line mode
SINGLE_MODE = Timer.ENC_A
# Constant for decoding in quad mode
DUAL_MODE = Timer.ENC_AB
# Maps alternate pin function descriptions to the required timer number
TIMER_MAP = {'AF1_TIM2': 2, 'AF2_TIM4': 4, 'AF2_TIM5': 5, 'AF3_TIM8': 8}
# Maps pin names to the alternate function to use
AF_MAP = {'X1' : 'AF2_TIM5', 'X2': 'AF2_TIM5', 'X9': 'AF2_TIM4',
'X10': 'AF2_TIM4', 'Y1': 'AF3_TIM8', 'Y2': 'AF3_TIM8'}
# Defines the pin pairs that must be used
PIN_PAIRS = [['X1','X9','Y1'],['X2','X10','Y2']]
# Hysteresis value to overflow detection
HYSTERESIS = 12 # One full rotation of encoder
def __init__(self, pinA, pinB, mode = DUAL_MODE):
"""
Instantiate an Encoder object.
Initalises the Pins, Timer and TimerChannel for use as a quadrature
decoder. Registers an overflow callback to elegantly handle counter
register overflows.
pinA: Any valid value taken by pyb.Pin constructor
pinB: Any valid value taken by pyb.Pin constructor
mode: Mode to use for decoding (Encoder.SINGLE_MODE or
Encoder.DUAL_MODE)
raises: Any exception thrown by pyb.Pin, pyb.Timer, pyb.Timer.channel
or Exception if pins are not compatible pairs
"""
self._chA = Pin(pinA)
self._chB = Pin(pinB)
self._ticks = 0
# Check pins are compatible
self._checkPins(pinA, pinB)
# init pins for alternate encoder function
af = self.AF_MAP[self._chA.names()[1]]
channel = self.TIMER_MAP[af]
af = getattr(Pin, af)
self._chA.init(Pin.AF_PP, pull = Pin.PULL_NONE, af = af)
self._chB.init(Pin.AF_PP, pull = Pin.PULL_NONE, af = af)
# init timer
self._timer = Timer(channel, prescaler = 0, period = 100000)
# init encoder mode
# self._channel = self._timer.channel(1, mode)
self._timer.channel(1, mode)
# setup overflow callback
self._timer.callback(self._overflow)
# init count register to middle of count
self._timer.counter(self._timer.period()//2)
self._lastRead = self._timer.counter()
def _checkPins(self, pinA, pinB):
"""
Check that two pins can be used for a decoding and are on the same
timer.
"""
try:
if pinA in self.PIN_PAIRS[0]:
if self.PIN_PAIRS[0].index(pinA) != self.PIN_PAIRS[1].index(pinB):
raise Exception()
elif pinA in self.PIN_PAIRS[1]:
if self.PIN_PAIRS[0].index(pinB) != self.PIN_PAIRS[1].index(pinA):
raise Exception()
else:
raise Exception()
except:
raise Exception(pinA + ' & ' + pinB + ' are not on the same Timer')
def ticks(self, ticks = None):
"""
Get or set the current tick count.
Ticks is a signed integer.
"""
if ticks is not None: # set ticks to desired value
self._ticks = ticks
else: # retrieve latest count and update internals
count = self._timer.counter()
self._ticks = self._ticks + (count - self._lastRead)
self._lastRead = count
return self._ticks
def _overflow(self, timer):
"""
Timer overflow callback to gracefully handle overflow events. If
weird things are occurring, try increasing the HYSTERESIS value.
"""
count = timer.counter()
if 0 <= count <= self.HYSTERESIS: # overflow
self._ticks = self._ticks + (timer.period() - self._lastRead + count)
self._lastRead = count
elif (timer.period() - self.HYSTERESIS) <= count <= timer.period(): # underflow
self._ticks = self._ticks - (self._lastRead + timer.period() - count)
self._lastRead = count
else: # hysteresis not big enough
#LED(1).on() # turn on inbuilt red led to show error
pass
from pyb import Pin
p = Pin('X1', Pin.IN)
print(p)
print(p.name())
print(p.pin())
print(p.port())
p = Pin('X1', Pin.IN, Pin.PULL_UP)
p = Pin('X1', Pin.IN, pull=Pin.PULL_UP)
p = Pin('X1', mode=Pin.IN, pull=Pin.PULL_UP)
print(p)
print(p.value())
p.init(p.IN, p.PULL_DOWN)
p.init(p.IN, pull=p.PULL_DOWN)
p.init(mode=p.IN, pull=p.PULL_DOWN)
print(p)
print(p.value())
p.init(p.OUT_PP)
p.low()
print(p.value())
p.high()
print(p.value())
p.value(0)
print(p.value())
p.value(1)
print(p.value())
p.value(False)
print(p.value())
class Grove4Digit(object):
def __init__(self, clk,dio):
self.clk = Pin(clk,Pin.OUT,Pin.PULL_UP)
self.dio = Pin(dio,Pin.OUT,Pin.PULL_UP)
def value(self):
return self.button.value()
def start(self):
self.clk.value(1)
self.dio.value(1)
self.dio.value(0)
self.clk.value(0)
def stop(self):
self.clk.value(0)
self.dio.value(0)
self.clk.value(1)
self.dio.value(1)
def writeByte(self,data):
for _ in range(8):
self.clk.value(0)
if data & 0x01:
self.dio.value(1)
else:
self.dio.value(0)
data >>= 1
utime.sleep_us(1)
self.clk.value(1)
utime.sleep_us(1)
self.clk.value(0)
self.dio.value(1)
self.clk.value(1)
self.dio.init(Pin.IN,Pin.PULL_UP)
utime.sleep_ms(50)
ack = self.dio.value()
if (ack == 0):
self.dio.init(Pin.OUT,Pin.PULL_UP)
self.dio.value(0)
utime.sleep_ms(50)
self.dio.init(Pin.OUT,Pin.PULL_UP)
utime.sleep_ms(50)
def display(self,data,brightness=BRIGHT_DEFAULT,colon=False):
self.start()
self.writeByte(ADDR_AUTO)
self.stop()
self.start()
self.writeByte(STARTADDR)
if len(data) < 4:
data = data + ' '
for i in range(4):
self.writeByte(charmap[data[i]] | 0x80 * colon)
self.stop()
if brightness > BRIGHT_HIGHEST:
brightness = BRIGHT_HIGHEST
if brightness < BRIGHT_DARKEST:
brightness = BRIGHT_DARKEST
self.start()
self.writeByte(0x88 + brightness)
self.stop()
def clear(self):
self.display(' ',4,0)
class Encoder():
"""
Abstracts a quadrature encoder to give a tick count.
The count is a signed integer starting at zero. It wraps the count from the
attached timer to give a seamless and continuous tick count. Overflows of
the internal timer counter register should be adequatly handled. If
overflows or weird behaviour occurs around the overflow points, try
increasing Encoder.HYSTERESIS.
Note: Only works on pin pairs 'X1' & 'X2', 'X9' & 'X10', or 'Y1', 'Y2'. The
timer will be automatically selected. Both Timer 2 and 5 work for 'X1' &
'X2', but Timer 5 is preferred because Timer 2 is used for LED PWM but both
can be used by changing the values of Encoder.AF_MAP.
"""
# Constant for decoding in single line mode
SINGLE_MODE = Timer.ENC_A
# Constant for decoding in quad mode
DUAL_MODE = Timer.ENC_AB
# Maps alternate pin function descriptions to the required timer number
TIMER_MAP = {'AF1_TIM2': 2, 'AF2_TIM4': 4, 'AF2_TIM5': 5, 'AF3_TIM8': 8}
# Maps pin names to the alternate function to use
AF_MAP = {
'X1': 'AF2_TIM5',
'X2': 'AF2_TIM5',
'X9': 'AF2_TIM4',
'X10': 'AF2_TIM4',
'Y1': 'AF3_TIM8',
'Y2': 'AF3_TIM8'
}
# Defines the pin pairs that must be used
PIN_PAIRS = [['X1', 'X9', 'Y1'], ['X2', 'X10', 'Y2']]
# Hysteresis value to overflow detection
HYSTERESIS = 12 # One full rotation of encoder
def __init__(self, pinA, pinB, mode=DUAL_MODE):
"""
Instantiate an Encoder object.
Initalises the Pins, Timer and TimerChannel for use as a quadrature
decoder. Registers an overflow callback to elegantly handle counter
register overflows.
pinA: Any valid value taken by pyb.Pin constructor
pinB: Any valid value taken by pyb.Pin constructor
mode: Mode to use for decoding (Encoder.SINGLE_MODE or
Encoder.DUAL_MODE)
raises: Any exception thrown by pyb.Pin, pyb.Timer, pyb.Timer.channel
or Exception if pins are not compatible pairs
"""
self._chA = Pin(pinA)
self._chB = Pin(pinB)
self._ticks = 0
# Check pins are compatible
self._checkPins(pinA, pinB)
# init pins for alternate encoder function
af = self.AF_MAP[self._chA.names()[1]]
channel = self.TIMER_MAP[af]
af = getattr(Pin, af)
self._chA.init(Pin.AF_PP, pull=Pin.PULL_NONE, af=af)
self._chB.init(Pin.AF_PP, pull=Pin.PULL_NONE, af=af)
# init timer
self._timer = Timer(channel, prescaler=0, period=100000)
# init encoder mode
# self._channel = self._timer.channel(1, mode)
self._timer.channel(1, mode)
# setup overflow callback
self._timer.callback(self._overflow)
# init count register to middle of count
self._timer.counter(self._timer.period() // 2)
self._lastRead = self._timer.counter()
def _checkPins(self, pinA, pinB):
"""
Check that two pins can be used for a decoding and are on the same
timer.
"""
try:
if pinA in self.PIN_PAIRS[0]:
if self.PIN_PAIRS[0].index(pinA) != self.PIN_PAIRS[1].index(
pinB):
raise Exception()
elif pinA in self.PIN_PAIRS[1]:
if self.PIN_PAIRS[0].index(pinB) != self.PIN_PAIRS[1].index(
pinA):
raise Exception()
else:
raise Exception()
except:
raise Exception(pinA + ' & ' + pinB + ' are not on the same Timer')
def ticks(self, ticks=None):
"""
Get or set the current tick count.
Ticks is a signed integer.
"""
if ticks is not None: # set ticks to desired value
self._ticks = ticks
else: # retrieve latest count and update internals
count = self._timer.counter()
self._ticks = self._ticks + (count - self._lastRead)
self._lastRead = count
return self._ticks
def _overflow(self, timer):
"""
Timer overflow callback to gracefully handle overflow events. If
weird things are occurring, try increasing the HYSTERESIS value.
"""
count = timer.counter()
if 0 <= count <= self.HYSTERESIS: # overflow
self._ticks = self._ticks + (timer.period() - self._lastRead +
count)
self._lastRead = count
elif (timer.period() -
self.HYSTERESIS) <= count <= timer.period(): # underflow
self._ticks = self._ticks - (self._lastRead + timer.period() -
count)
self._lastRead = count
else: # hysteresis not big enough
#LED(1).on() # turn on inbuilt red led to show error
pass
class Button(object):
'''
This button can handle short and long press
'''
def __init__(self, pin, timerId=6, thresholdTime=1000, lowOnPress=False):
'''
Constructor
@param pin: Pin object where the button is
@param timerId: (default=6) Timer to determine the long press
@param thresholdTime: Waiting time to determine a long press as milliseconds
@param lowOnPress: Indicates whether the value is 0 when the button is pressed (pull-down)
The user (blue) button on the NUCLEO-L476RG board must have this parameter as True,
but for the case of the NUCLEO-F767ZI board, this parameter must be False
'''
self._pin = Pin(pin)
self._pin.init(mode=Pin.IN)
self._pin.irq(handler=self._onPinIrq)
self._lowOnPress = lowOnPress
self._thresholdTime = thresholdTime
self._pressTime = 0
self._timer = Timer(timerId)
self._shortPressHandler = None
self._longPressHandler = None
self._isTimeout = False
def _onPinIrq(self, _):
self._pin.irq(handler=None)
self._timer.callback(None)
self._timer.deinit()
#debounce signal
sleep_ms(50)
if self._pin.value() == (1 if self._lowOnPress else 0):
if not self._isTimeout:
schedule(self._shortPressHandler, self)
else:
self._isTimeout = False
self._timer.init(freq=1000 / self._thresholdTime,
callback=self._onTimeout)
self._pin.irq(handler=self._onPinIrq)
def _onTimeout(self, t):
t.deinit()
self._isTimeout = True
schedule(self._longPressHandler, self)
def setShortPressHandler(self, handler):
'''
Sets the handler for short press
'''
self._shortPressHandler = handler
return self
def setLongPressHandler(self, handler):
'''
Sets the handler for long press
'''
self._longPressHandler = handler
return self
def cleanup(self):
'''
Releases resources
Deinits the timer and removes handler for the pin's IRQ
'''
self._timer.deinit()
self._pin.irq(handler=None)
