Arduino compatible, fully assembled and tested. Complete Internet/Ethernet board with 4 Optically-Isolated Digital Inputs and 4 Relays. Arduino is an open-source physical computing platform based on a simple i/o board and a user friendly development environment that implements the Processing/Wiring language.

Required power:
12VDC /  minimum 1000 mA.

Features:
- ATMEGA328 Microcontroller
- ENC28J60 Ethernet Controller
- Built-in USB FTDI USB to Serial COM port converter
- Built-in RS-485 converter
- 4 Opto Isolated Digital Inputs
- 4 Relays 220VAC/10Am
- Reset Button
- Code upload via USB with the Bootloader

Specifications:

Relays have Normally Open (NO) and Normally Closed (NC) Contacts each capable of switching max:
- 12VDC/15A
- 24VDC/15A
- 125VAC/15A
- 250VAC/10A

- Microcontroller: ATmega328
- Power Voltage: 12VDC
- Input Voltage: 5-24VDC
- Ethernet Controller: ENC28J60
- Digital Input Pins: 4
- Relays: 4
- Flash Memory: 32 KB (ATmega328) of which 2 KB used by bootloader
- SRAM: 2 KB (ATmega328)
- EEPROM: 1 KB (ATmega328)
- Clock Speed: 16 MHz