def getTemper(self):
"""
获取温度
:return: 温度,单位摄氏度
"""
_pin = MPythonPin(self.pin, PinMode.ANALOG)
val = _pin.read_analog()
return val / 4 * (3 / 10.24)
def getTemper(self):
"""
获取温度
:return: 温度,单位摄氏度
"""
_pin = MPythonPin(self.pin, PinMode.ANALOG)
val = _pin.read_analog()
return 1 / (math.log(4095 / val - 1) / 3935 + 1 / 298) - 273
def getVal(self):
"""
获取按键
:return: 返回按键,值可以是'A','B','C','D',无按键按下'None'.
"""
_pin = MPythonPin(self.pin, PinMode.ANALOG)
val = _pin.read_analog()
btn = None
if val < 100:
btn = 'A'
elif val > 600 and val < 1023:
btn = 'B'
elif val > 1700 and val < 2048:
btn = 'C'
elif val > 2700 and val < 3200:
btn = 'D'
return btn
class Servo:
def __init__(self, pin, min_us=750, max_us=2250, actuation_range=180):
self.min_us = min_us
self.max_us = max_us
self.actuation_range = actuation_range
self.servoPin = MPythonPin(pin, PinMode.PWM)
def write_us(self, us):
if us < self.min_us or us > self.max_us:
raise ValueError("us out of range")
duty = round(us / 20000 * 1023)
self.servoPin.write_analog(duty, 50)
def write_angle(self, angle):
if angle < 0 or angle > self.actuation_range:
raise ValueError("Angle out of range")
us_range = self.max_us - self.min_us
us = self.min_us + round(angle * us_range / self.actuation_range)
self.write_us(us)
class MicroBitPin:
IN = 1
OUT = 2
PWM = 3
ANALOG = 4
def __init__(self, id):
self.id = id
self.current_mode = None
self.mpython_pin = None
def __change_pin_mode(self, pinmode):
if self.current_mode is not pinmode:
self.mpython_pin = MPythonPin(self.id, mode=pinmode)
if pinmode == MicroBitPin.ANALOG:
self.mpython_pin.adc.width(ADC.WIDTH_10BIT)
self.current_mode = pinmode
def read_digital(self):
self.__change_pin_mode(MicroBitPin.IN)
return self.mpython_pin.read_digital()
def write_digital(self, value):
self.__change_pin_mode(MicroBitPin.OUT)
self.mpython_pin.write_digital(value)
def read_analog(self):
self.__change_pin_mode(MicroBitPin.ANALOG)
return self.mpython_pin.read_analog()
def write_analog(self, value):
self.__change_pin_mode(MicroBitPin.PWM)
self.mpython_pin.write_analog(value)
def set_analog_period(period):
#TODO
pass
def set_analog_period_microseconds(period):
#TODO
pass
def __change_pin_mode(self, pinmode):
if self.current_mode is not pinmode:
self.mpython_pin = MPythonPin(self.id, mode=pinmode)
if pinmode == MicroBitPin.ANALOG:
self.mpython_pin.adc.width(ADC.WIDTH_10BIT)
self.current_mode = pinmode
def __init__(self, pin, min_us=750, max_us=2250, actuation_range=180):
self.min_us = min_us
self.max_us = max_us
self.actuation_range = actuation_range
self.servoPin = MPythonPin(pin, PinMode.PWM)