Pico使用

Posted 2022-11-18 勾小芬

这里写自定义目录标题

UART
https://blog.csdn.net/weiqifa0/article/details/114696022

from machine import UART, Pin
import utime
uart = UART(0, baudrate=115200, bits=8, parity=None, stop=1, tx=Pin(0), rx=Pin(1))
sendStr = ""
receiveStr = ""
if uart.any:
	uart.write(sendStr.encode())
	receivestr = uart.readline().decode()

ADC：读取Pico芯片内部温度

from machine import ADC
import utime

sensor_temp = machine.ADC(4)
conversion_factor = 3.3/65535

while True:
	read = sensor_temp.read_u16() * conversion_factor
	temperature = 27 - (read - 0.706) / 0.001721
	print(temperature)
	utime.sleep(2)

PWM驱动板载LED

form machine import Pin, PWM
import time

pwm = PWM(pin(25))
pwm.freq(1000)
duty = 0
direction = 1

for _ in range(16*255):	
	duty += direction
	if duty > 255:
		duty = 255
		direciton = -1
	elif duty < 0:
		duty = 0
		direction = 1

pwm.duty_u16(duty*duty)
time.sleep(0.001)