1.1. Pico 记录

1.1.1. 资料

• https://www.waveshare.net/wiki/Raspberry_Pi_Pico
• https://pico.wiki/index.php/2021/04/06/getting-started-with-raspberry-pi-pico-gpio.html

1.1.2. 点灯

import machine
import utime
led_onboard = machine.Pin(25, machine.Pin.OUT)

while True:
    led_onboard.value(1)
    utime.sleep(2)
    led_onboard.value(0)
    utime.sleep(2)

1.1.3. 开关+ led + 蜂鸣器

import machine
import utime
from machine import Pin, PWM

pwm = PWM(Pin(11))
pwm.freq(1000)
button = machine.Pin(14, machine.Pin.IN, machine.Pin.PULL_DOWN)
led_external = machine.Pin(15, machine.Pin.OUT)
led_green = machine.Pin(13, machine.Pin.OUT)
i = 30
while True:
    if button.value() == 1:
        i = i+1;
        print("You pressed the button!")
        print(i)
        led_external.toggle()
        utime.sleep(0.5)
        led_green.toggle()
        pwm.duty_u16(i)
        i = i+1
        utime.sleep(0.5)
        pwm.duty_u16(i-5)
        utime.sleep(0.5)
        pwm.duty_u16(0)