from machine import Pin, I2C, mem32
import utime

class I2C_SlaveSender:
    def __init__(self, i2c, address):
        self.i2c = i2c
        self.address = address

    def read_pins_state(self):
        return (Pin(2).value(), Pin(3).value(), Pin(4).value(), Pin(5).value())

    def send_data(self, data):
        self.i2c.writeto(self.address, bytes([data]))

i2c = I2C(0, sda=Pin(0), scl=Pin(1), freq=100000)  # I2Cインスタンスを作成
sender = I2C_SlaveSender(i2c, 0x41)  # I2Cスレーブのアドレスを0x41に設定

try:
    while True:
        pins_state = sender.read_pins_state()  # ピンの状態を読み取る
        data = (pins_state[0] << 3) | (pins_state[1] << 2) | (pins_state[2] << 1) | pins_state[3]
        sender.send_data(data)  # ピンの状態をI2Cで送信
        utime.sleep(0.1)  # 0.1秒待機して状態を送信
except KeyboardInterrupt:
    pass