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Arduino EEPROM Read/Write

Arduino Board Ethernet

This is an implementation for reading/writing IP related information (IP Address, Subnet, Gateway and DNS) from/to Arduino EEPROM. Tested on Arduino Ethernet board which has 1k of EEPROM but can be adapted to other Arduino boards.

API Structure:

COMMAND:PARAM:VALUE

Available serial API:

  • WRITE:IP:192.168.1.50
  • WRITE:SUBNET:255.255.255.0
  • WRITE:GATEWAY:192.168.1.254
  • WRITE:DNS:192.168.1.254
  • READ:IP
  • READ:SUBNET
  • READ:GATEWAY
  • READ:DNS
  • RESTART:NET

Assigned EEPROM Addresses:

  • IP : 0-3
  • SUBNET : 4-7
  • GATEWAY : 8-11
  • DNS : 12-15

Example:

<< Serial port COM6 opened
>> READ:IP
<< IP : 192.168.1.100
>> WRITE:IP:192.168.1.50
<< WRITE OK
>> RESTART:NET
<< RESTART OK
>> READ:IP
<< IP : 192.168.1.50