MicroPython 快速入门

emmaxie

开发板控制：

1. import pyb
   
2. 
   
3. pyb.delay(50) # wait 50 milliseconds
   
4. pyb.millis() # number of milliseconds since bootup
   
5. pyb.repl_uart(pyb.UART(1, 9600)) # duplicate REPL on UART(1)
   
6. pyb.wfi() # pause CPU, waiting for interrupt
   
7. pyb.freq() # get CPU and bus frequencies
   
8. pyb.freq(60000000) # set CPU freq to 60MHz
   
9. pyb.stop() # stop CPU, waiting for external interrupt

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LEDs：

1. from pyb import LED
   
2. 
   
3. led = LED(1) # red led
   
4. led.toggle()
   
5. led.on()
   
6. led.off()

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Pins and GPIO

1. from pyb import Pin
   
2. 
   
3. p_out = Pin('X1', Pin.OUT_PP)
   
4. p_out.high()
   
5. p_out.low()
   
6. 
   
7. p_in = Pin('X2', Pin.IN, Pin.PULL_UP)
   
8. p_in.value() # get value, 0 or 1

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伺服电机控制：

1. from pyb import Servo
   
2. 
   
3. s1 = Servo(1) # servo on position 1 (X1, VIN, GND)
   
4. s1.angle(45) # move to 45 degrees
   
5. s1.angle(-60, 1500) # move to -60 degrees in 1500ms
   
6. s1.speed(50) # for continuous rotation servos

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外部中断：

1. from pyb import Pin, ExtInt
   
2. 
   
3. callback = lambda e: print("intr")
   
4. ext = ExtInt(Pin('Y1'), ExtInt.IRQ_RISING, Pin.PULL_NONE, callback)

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定时器：

1. from pyb import Timer
   
2. 
   
3. tim = Timer(1, freq=1000)
   
4. tim.counter() # get counter value
   
5. tim.freq(0.5) # 0.5 Hz
   
6. tim.callback(lambda t: pyb.LED(1).toggle())

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PWM 脉宽调制

1. from pyb import Pin, Timer
   
2. 
   
3. p = Pin('X1') # X1 has TIM2, CH1
   
4. tim = Timer(2, freq=1000)
   
5. ch = tim.channel(1, Timer.PWM, pin=p)
   
6. ch.pulse_width_percent(50)

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ADC  模数转换：

1. from pyb import Pin, ADC
   
2. 
   
3. adc = ADC(Pin('X19'))
   
4. adc.read() # read value, 0-4095

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DAC 数模转换：

1. from pyb import Pin, DAC
   
2. 
   
3. dac = DAC(Pin('X5'))
   
4. dac.write(120) # output between 0 and 255

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串口：

1. from pyb import UART
   
2. 
   
3. uart = UART(1, 9600)
   
4. uart.write('hello')
   
5. uart.read(5) # read up to 5 bytes

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SPI 总线：

1. from pyb import SPI
   
2. 
   
3. spi = SPI(1, SPI.MASTER, baudrate=200000, polarity=1, phase=0)
   
4. spi.send('hello')
   
5. spi.recv(5) # receive 5 bytes on the bus
   
6. spi.send_recv('hello') # send a receive 5 bytes

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IIC总线：

1. from pyb import I2C
   
2. 
   
3. i2c = I2C(1, I2C.MASTER, baudrate=100000)
   
4. i2c.scan() # returns list of slave addresses
   
5. i2c.send('hello', 0x42) # send 5 bytes to slave with address 0x42
   
6. i2c.recv(5, 0x42) # receive 5 bytes from slave
   
7. i2c.mem_read(2, 0x42, 0x10) # read 2 bytes from slave 0x42, slave memory 0x10
   
8. i2c.mem_write('xy', 0x42, 0x10) # write 2 bytes to slave 0x42, slave memory 0x10

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csc57

都很有兴趣啊！

duzj111

gtrjolin1986 发表于 2016-5-26 14:40
都很有兴趣啊！

是啊，要不搞个活动吧

huangna

shaoziyang 发表于 2016-5-26 14:48
是啊，要不搞个活动吧

什么活动？？？？

zhanzifei

gtrjolin1986 发表于 2016-5-26 14:40
都很有兴趣啊！

老大，一起来玩，，。。

oneside

不错，感谢楼主的分享，学习了。。。