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import uasyncio async def blink (led, period_ms): while True: led. on await uasyncio. sleep_ms (5) led. off await uasyncio. sleep_ms (period_ms) async def main (led1, led2): uasyncio. create_task (blink (led1, 700)) uasyncio. create_task (blink (led2, 400)) await uasyncio. sleep_ms (10_000) # Running on a pyboard from pyb import LED uasyncio ...

from pyb import LED led = LED(1) # 1=red, 2=green, 3=yellow, 4=blue led.toggle() led.on() led.off() # LEDs 3 and 4 support PWM intensity (0-255) ...

最终pyb会被淘汰，但是目前pyb比machine功能要多。 本教程中，只有I2C使用了machine库。 常用的函数 pyb.delay(50) # 延时 50 毫秒 pyb.millis() # 获取从启动开始计时的毫秒数 LED from pyb import LED led = LED(1) # 红led led.toggle() led.on() #亮 led.off() #灭. LED(1) -> 红LED LED(2) -> 绿LED LED(3 ...

class pyb. LED (id) ¶ Create an LED ... Note: Only LED(3) and LED(4) can have a smoothly varying intensity, and they use timer PWM to implement it. LED(3) uses Timer(2) and LED(4) uses Timer(3). These timers are only configured for PWM if the intensity of the relevant LED is set to a value between 1 and 254.

pyb各种外设 概览. 作为一个单片机，控制IO口，IIC，SPI，CAN，PWM。定时器当然都是可以的。 而且，使用python语言，可以非常简单的调用它们，而不用考虑寄存器。

from pyb import LED led = LED (1) # 1=red, 2=green, 3=yellow, 4=blue led. toggle led. on led. off # LEDs 3 and 4 support PWM intensity (0-255) LED (4). intensity # get intensity LED (4). intensity (128) # set intensity to half

from pyb import LED led = LED (1) # 1=red, 2=green, 3=yellow, 4=blue led. toggle led. on led. off # LEDs 3 and 4 support PWM intensity (0-255) LED (4). intensity # get intensity LED (4). intensity (128) # set intensity to half

Such as we can use import pyb , where is the pyb Python file? Such as we can use from pyb import LED and call the intensity function, ...

30.06.2020 · here is the code: from machine import Pin from pyb import LED from pyb import I2C Pin ('PULL_SCL', Pin.OUT, value=1) Pin ('PULL_SDA', Pin.OUT, value=1) lcd = I2C (1, I2C.MASTER) print (lcd.scan ()) print (lcd.is_ready (39)) lcd.send ('hello', 39) my terminal looks like: [39] True. it seems to be finding the 39 address, is appears to be ready ...

import pyb # MicroPython library allowing access to peripherals (GPIO, LED, etc.) import time # Library allowing system pauses print ("GPIOs with ...

02.02.2020 · Basic operation example 1. LED 2. button 3. GPIO 4. External interruption 5. I2C bus 6. ADC 7. DAC 8. UART 1. LED There are four LEDs in pyBoard, namely LED (1) - led (4). The constructor and calling method of LED are as follows: Example code to illuminate LED(4): from pyb import LED LED(4).onUTF-8...

Jan 06, 2021 · #import time, pyb from time import sleep from pyb import LED led1 = LED(1) led2 = LED(2) led3 = LED(3) # Red LED = 1, Green LED = 2, Blue LED = 3, IR LEDs = 4. #usb = pyb.USB_VCP() # This is a serial port object that allows you to # communciate with your computer. While it is not open the code below runs.

The MicroPython pyboard is a compact electronic circuit board that runs MicroPython on the bare metal, ... import pyb. # turn on an LED pyb.LED(1).on() ...

03.01.2022 · import pyb 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

16.05.2014 · from pyb import DAC from pyb import LED # turn on a led led = LED(4) led.on() # set the trianglewave frequency (Hz) # sample frequency needs to be 2048 bigger to get the correct result frequency = 100 sample_frequency = frequency * 2048 #output to the DAC dac = DAC(1) dac.triangle(sample_frequency)

from pyb import LED led = LED(1) # 1=red, 2=green, 3=yellow, 4=blue led.toggle() led.on() led.off() # LEDs 3 and 4 support PWM intensity (0-255) ...

from pyb import LED led = LED(1) # 1=红, 2=绿, 3=黄, 4=蓝 led.toggle() led.on() led.off() # LEDs 3 和4 支持PWM 调节亮度(0-255) LED(4).intensity() # 获取亮度 ...

from pyb import LED led = LED (1) # 1=赤、2=緑、3=黄色、4=青 led. toggle led. on led. off # LED 3 と 4 は PWM 照度(0-255)をサポートします LED (4). intensity # 照度を得ます LED (4). intensity (128) # 照度を半分に設定します

Quick reference for the pyboard¶. General board control¶. See pyb.. 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, …

import pyb pyb.usb_mode('VCP+MSC', port=-1) # default, auto-detect port ... from pyb import LED led = LED(1) # 1=red, 2=green, 3=blue led.toggle() led.on() ...

def heartbeat(tms): if platform == 'pyboard': # V1.x or D series from pyb import LED led = LED(1) elif platform == 'esp8266': from machine import Pin led ...

LED(4) -> IR LEDs. Pins and GPIO¶. See pyb.Pin. from pyb import ...