I'm using an Arduino as ISP to flash the webserver to the AVR-NET-IO. See my previous post Dump ATMEGA32 on AVR-NET board using avrdude for how to convert the Arduino to a programmer and how to wire the connections between the Arduino (programmer) and the AVR-NET-IO. Do not connect AVR-NET-IO's own power source when it is connected to the Arduino (programmer).
The AVR-NET-IO uses the ATmega32 microcontroller about which the Arduino IDE does not know anything. Thankfully, Eric Conner has written a definition file for the ATmega32 needed by the Arduino IDE.
1.1. Download definitions from https://github.com/eaconner/ATmega32-Arduino and follow the instructions to install the mega32 variant files.
1.2. Patch the
pins_arduino.h file to contain the following additional lines:
static const uint8_t SS = 4; // D4 static const uint8_t MOSI = 5; // D5 static const uint8_t MISO = 6; // D6 static const uint8_t SCK = 7; // D7
I have the file in the following directory:
2. ENC28J60 network chip
The Pollin board also contains an ENC28J60 network chip. This cannot be addressed by the Arduino Ethernet library directly but there is a wonderful replacement library available from Norbert Truchsess at
Install the library as described in the installation instructions on the above link.
I have the library files in the following directory:
e.g. the file
3.1. Start Arduino IDE, open from the menu Examples / Ethernet / WebServer .
3.2. Change the include directive
4. Compile and Upload
4.1. In Arduino IDE menu select: Tools / Programmer / Arduino as ISP
4.2. Select Tools / Board / ATmega32-External 16MHz
4.3. File / Upload using Programmer (this sometimes aborts with error message "Not int sync". Simply give it a second try.
4.4. Make sure to disconnect the Arduino (programmer) from the AVR-NET-IO before you connect AVR-NET-IO's own power source.