raspberry pi pico by micopython(aqm0802)

 http://jh7ubc.web.fc2.com/Raspberry_Pi/Raspberry_Pi_Pico/Pi_Pico_AQM0802A.htmlを参考に結線した　やはりmpyは事例豊富、mmbasicとかkalumajsは英語サイトだけ

from machine import Pin, I2C

import utime

# I2C

i2c = I2C(

    0,

    freq=100000,

    scl=Pin(17),

    sda=Pin(16)

)

addr = 0x3e

buf = bytearray(2)

# コマンド送信

def write_cmd(cmd):

    buf[0] = 0x00

    buf[1] = cmd

    i2c.writeto(addr, buf)

# 文字送信

def write_char(char):

    buf[0] = 0x40

    buf[1] = char

    i2c.writeto(addr, buf)

# 文字列表示

def lcd_print(text):

    for c in text:

        write_char(ord(c))

# カーソル位置

def LCD_cursor(x, y):

    if y == 0:

        write_cmd(0x80 + x)

    if y == 1:

        write_cmd(0xc0 + x)

# LCDクリア

def LCD_clear():

    buf[0] = 0x00

    buf[1] = 0x01

    i2c.writeto(addr, buf)

    utime.sleep(0.002)

# LCDホーム

def LCD_home():

    buf[0] = 0x00

    buf[1] = 0x02

    i2c.writeto(addr, buf)

    utime.sleep(0.002)

# LCD初期化

def LCD_init():

    orders = [

        0x38,

        0x39,

        0x14,

        0x73,

        0x56,

        0x6c,

        0x38,

        0x0c,

        0x01

    ]

    utime.sleep(0.04)

    for order in orders:

        write_cmd(order)

        utime.sleep(0.002)

# =========================

# メイン

# =========================

LCD_init()

LCD_clear()

LCD_home()

lcd_print("JH7UBC")

num = 0

while True:

    LCD_cursor(0, 1)

    lcd_print(str(num))

    num = num + 1

    utime.sleep(1)