私的AI研究会 > RaspiPico
新マイコンボード「Raspberry Pi Pico」を検証する。
import machine
import utime
led = machine.Pin(25, machine.Pin.OUT)
while True:
led.value(1)
utime.sleep(1)
led.value(0)
utime.sleep(1)
引用 → https://www.marutsu.co.jp/pc/static/large_order/zep/m-z-picoled-da1
$ vi blink_pwm.py
from machine import Pin, PWM
import utime, random
pwm = PWM(Pin(25))
pwm.freq(100)
while True:
x = random.random()
pwm.duty_u16(int(65535*x))
utime.sleep(0.1)
print(x)$ vi blink_candle.py
from machine import Pin, PWM
import utime, random
pwm = PWM(Pin(25))
pwm.freq(100)
x = 0.5
while True:
if 0.05 <= x < 0.5:
x = x + 2 * x * x
elif 0.5 <= x < 0.95:
x = x - 2 * (1 - x) * (1 - x)
else:
x = random.random()
pwm.duty_u16(int(65535*x))
utime.sleep(0.1)
print(x)
引用 → https://blog.goo.ne.jp/jh7ubc/e/e31b062f42e221c2b76eb74799c17107
| id | TX | RX | baudrate | parity | stopbit |
| 0 | GPIO0 | GPIO1 | 115200 | なし | 1 |
| 1 | GPIO4 | GPIO5 | 115200 | なし | 1 |
$ vi uart_test.py
from machine import UART,Pin
u = UART(1)
u.write('UART test\n\r')
while True:
if u.any() > 0:
u.write(u.read(1))
$ vi uart_test1.py
from machine import Pin, Timer, UART
uart = UART(1, 115200, tx=Pin(4), rx=Pin(5), timeout=100)
def clear_buf():
while True:
rxData = uart.readline()
if rxData == None:
break
utime.sleep(0.005)
clear_buf()
uart.write('UART test')
while True:
rxData = uart.readline()
if rxData is not None:
print(rxData)
| id | TX | RX |
| UART(0) | GPIO0 | GPIO1 |
| GPIO12 | GPIO13 | |
| GPIO16 | GPIO17 | |
| UART(1) | GPIO4 | GPIO5 |
| GPIO18 | GPIO19 |