# Basic Example to read and write from AT24MACx02 EEPROM Devices # Written by FACTS Engineering # Copyright (c) 2023 FACTS Engineering, LLC # Licensed under the MIT license. # import board import busio import at24mac_eeprom # Create EEPROM Object i2c = busio.I2C(board.ATMAC_SCL, board.ATMAC_SDA) # i2c = busio.I2C(board.SCL, board.SDA) # For external I2C devices eeprom = at24mac_eeprom.AT24MAC(i2c) # Address lines default to 0b100. They can be specified if needed. # eeprom = at24mac_eeprom.AT24MAC(i2c, 0b101) # Print out MAC address and serial number print(eeprom.mac) # Format for use with Wiznet5k print([hex(val) for val in eeprom.mac]) # Readable format print(eeprom.serial_number) print() # Write and read to address 0 using the device object like an array eeprom[0] = 76 print(eeprom[0]) print() # Write and read to address 100 using array slices eeprom[100] = [6, 7, 8, 9, 10] print([val for val in eeprom[100:105]]) print() while True: pass