树莓派pico vscodecode micropython 环

vscode code的micropython开发环境推荐安装扩展 micropico

• 参考链接: https://randomnerdtutorials.com/raspberry-pi-pico-vs-code-micropython/

板载led闪烁示例

from machine import Pin
from time import sleep

led = Pin('LED', Pin.OUT)
print('Blinking LED Example')

while True:
  led.value(not led.value())
  sleep(0.5)
  

执行步骤如下:

gpio触发中断, 读取数据gpio高低电平示例:

from machine import Pin
from time import sleep

cs1 = Pin('GP20', Pin.IN) #设置GPIO20输入
pin1 = Pin('GP21', Pin.IN) #设置GPIO21输入

def cs1_callback(pin: Pin): #中断回调函数
    val = pin1.value() #获得GPIO21的电平值
    if val:
        print("high")
    else:
        print("low")
    sleep(1)

cs1.irq(trigger=Pin.IRQ_FALLING, handler=cs1_callback) #设置GPIO20的回调出发函数, 下降沿触发

while True: #设置死循环, 防止程序退出
    pass