/* DHCP-based IP printer for the ENC28J60 This sketch uses the DHCP extensions to the Ethernet library to get an IP address via DHCP and print the address obtained. using an Arduino Wiznet Ethernet shield. Circuit: Circuit modified by Brian Patton for use with the Teensy and a ENC28J60 Ethernet adapter. Teensy ENC28J60 pin 10 CS pin 11 ST (I concluded it was a poorly translated SI) pin 12 SO pin 13 SCK if using 5 volts... 5V 5V GND GND if using 3.3 volts... 3.3 Q3 (I have no idea why...it just is) GND GND UPIEthernet.h library downloaded from: https://github.com/ntruchsess/arduino_uip created 12 April 2011 modified 9 Apr 2012 by Tom Igoe */ #include <SPI.h> #include <UIPEthernet.h> //Changed from original for the ENC28j60Chip // Enter a MAC address for your controller below. // Newer Ethernet shields have a MAC address printed on a sticker on the shield byte mac[] = { 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; // Initialize the Ethernet client library // with the IP address and port of the server // that you want to connect to (port 80 is default for HTTP): EthernetClient client; void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); // this check is only needed on the Leonardo: while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } // start the Ethernet connection: if (Ethernet.begin(mac) == 0) { Serial.println("Failed to configure Ethernet using DHCP"); // no point in carrying on, so do nothing forevermore: for(;;) ; } // print your local IP address: Serial.print("My IP address: "); for (byte thisByte = 0; thisByte < 4; thisByte++) { // print the value of each byte of the IP address: Serial.print(Ethernet.localIP()[thisByte], DEC); Serial.print("."); } Serial.println(); } void loop() { }