烽火社区
标题:
MicroPython 快速入门
[打印本页]
作者:
emmaxie
时间:
2016-5-26 02:31 PM
标题:
MicroPython 快速入门
[attach]31637[/attach]
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
作者:
csc57
时间:
2016-5-26 02:40 PM
都很有兴趣啊!
作者:
duzj111
时间:
2016-5-26 02:48 PM
gtrjolin1986 发表于 2016-5-26 14:40
都很有兴趣啊!
是啊,要不搞个活动吧
作者:
huangna
时间:
2016-5-26 06:10 PM
shaoziyang 发表于 2016-5-26 14:48
是啊,要不搞个活动吧
什么活动????
作者:
zhanzifei
时间:
2016-5-26 06:11 PM
gtrjolin1986 发表于 2016-5-26 14:40
都很有兴趣啊!
老大,一起来玩,,。。
作者:
oneside
时间:
2016-6-7 10:30 AM
不错,感谢楼主的分享,学习了。。。
欢迎光临 烽火社区 (http://bbs.cnecport.com/)
Powered by Discuz! X3.2