|
开发板控制:
- import pyb
- pyb.delay(50) # wait 50 milliseconds
- pyb.millis() # number of milliseconds since bootup
- pyb.repl_uart(pyb.UART(1, 9600)) # duplicate REPL on UART(1)
- pyb.wfi() # pause CPU, waiting for interrupt
- pyb.freq() # get CPU and bus frequencies
- pyb.freq(60000000) # set CPU freq to 60MHz
- pyb.stop() # stop CPU, waiting for external interrupt
复制代码LEDs:
- from pyb import LED
- led = LED(1) # red led
- led.toggle()
- led.on()
- led.off()
复制代码
Pins and GPIO
- from pyb import Pin
- p_out = Pin('X1', Pin.OUT_PP)
- p_out.high()
- p_out.low()
- p_in = Pin('X2', Pin.IN, Pin.PULL_UP)
- p_in.value() # get value, 0 or 1
复制代码伺服电机控制:
- from pyb import Servo
- s1 = Servo(1) # servo on position 1 (X1, VIN, GND)
- s1.angle(45) # move to 45 degrees
- s1.angle(-60, 1500) # move to -60 degrees in 1500ms
- s1.speed(50) # for continuous rotation servos
复制代码外部中断:
- from pyb import Pin, ExtInt
- callback = lambda e: print("intr")
- ext = ExtInt(Pin('Y1'), ExtInt.IRQ_RISING, Pin.PULL_NONE, callback)
复制代码定时器:
- from pyb import Timer
- tim = Timer(1, freq=1000)
- tim.counter() # get counter value
- tim.freq(0.5) # 0.5 Hz
- tim.callback(lambda t: pyb.LED(1).toggle())
复制代码
PWM 脉宽调制
- from pyb import Pin, Timer
- p = Pin('X1') # X1 has TIM2, CH1
- tim = Timer(2, freq=1000)
- ch = tim.channel(1, Timer.PWM, pin=p)
- ch.pulse_width_percent(50)
复制代码ADC 模数转换:
- from pyb import Pin, ADC
- adc = ADC(Pin('X19'))
- adc.read() # read value, 0-4095
复制代码
DAC 数模转换:
- from pyb import Pin, DAC
- dac = DAC(Pin('X5'))
- dac.write(120) # output between 0 and 255
复制代码串口:
- from pyb import UART
- uart = UART(1, 9600)
- uart.write('hello')
- uart.read(5) # read up to 5 bytes
复制代码SPI 总线:
- from pyb import SPI
- spi = SPI(1, SPI.MASTER, baudrate=200000, polarity=1, phase=0)
- spi.send('hello')
- spi.recv(5) # receive 5 bytes on the bus
- spi.send_recv('hello') # send a receive 5 bytes
复制代码
IIC总线:
- from pyb import I2C
- i2c = I2C(1, I2C.MASTER, baudrate=100000)
- i2c.scan() # returns list of slave addresses
- i2c.send('hello', 0x42) # send 5 bytes to slave with address 0x42
- i2c.recv(5, 0x42) # receive 5 bytes from slave
- i2c.mem_read(2, 0x42, 0x10) # read 2 bytes from slave 0x42, slave memory 0x10
- i2c.mem_write('xy', 0x42, 0x10) # write 2 bytes to slave 0x42, slave memory 0x10
复制代码
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?立即注册
x
|