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# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
import busio
import board
from adafruit_bus_device.i2c_device import I2CDevice
DEVICE_ADDRESS = 0x68 # device address of DS3231 board
A_DEVICE_REGISTER = 0x0E # device id register on the DS3231 board
# The follow is for I2C communications
comm_port = busio.I2C(board.SCL, board.SDA)
device = I2CDevice(comm_port, DEVICE_ADDRESS)
with device as bus_device:
bus_device.write(bytes([A_DEVICE_REGISTER]))
result = bytearray(1)
bus_device.readinto(result)
print("".join("{:02x}".format(x) for x in result))
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