Ethernut 2 AVR Ethernet Microcontoller Board

Ethernut 2.1 is a low-cost microcontroller board with 100Mbps Ethernet, open source RTOS & TCP/IP stack and embedded web server. It is based on the Atmel ATmega128 AVR RISC MCU and the LAN91C111 100 Mbit/s Ethernet controller.

Key Features

• ATmega128 8-bit RISC microcontroller with up to 16 MIPS throughput.
• Full duplex IEEE 802.3 compliant 10/100 Mbps Ethernet controller with on-board RJ-45 connector.
• Two serial ports, RS232 at DB-9 connector and half duplex RS485 at screw terminal.
• 128 kByte in-system programmable Flash ROM and 512 kByte serial Dataflash.
• 4 kByte in-system programmable EEPROM.
• 32 kByte SRAM plus 480 kByte banked SRAM.
• 22 programmable digital I/O lines.
• 8-channel, 10-bit analog/digital converter.
• Two 8-bit and two 16-bit timers/counters.
• Watchdog timer for enhanced reliability.
• LED indicators for power supply and Ethernet activity.
• Single power supply DC 8-12V.
• Board size: 78 x 98 mm (3.1" x 3.9").

Block Diagram

Documentation

Manuals & Datasheets
Ethernut 2 Hardware Manual	Ethernut Version 2.1 Hardware User's Manual (Rev. 2.0)
Nut/OS Software Manual	Introduction to the Nut/OS operating system (November 2005)