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2 channels WEB Relay board - BOX

2 channels WEB Relay board - BOX

Price: €44.00
RF433MHz Eight Channel Relay Board BOX, 12V

RF433MHz Eight Channel Relay Board BOX, 12V

List Price: €45.00
Price: €40.50
Discount: €4.50 (10.00%)
RF433MHz USB Wireless Transceiver Module

RF433MHz USB Wireless Transceiver Module

List Price: €20.00
Price: €18.00
Discount: €2.00 (10.00%)

 NEW:  RF 433MHz Relay boards

WEB, Internet , Ethernet controlled relay board: Arduino compatible, RS485, USB

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.
  • Code: SS_DINo_4Relay
  • Manufacturer: KMtronic
  • In stock: 0

Out of stock
Price: €59.00

Arduino IDE compatible

KMTronic LTD


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





Power Voltage


Input Voltage


Ethernet Controller


Digital Input Pins




Flash Memory

32 KB (ATmega328) of which 2 KB used by bootloader


2 KB (ATmega328)


1 KB (ATmega328)

Clock Speed

16 MHz



All in tree steps for beginners

Download and unzip in your Arduino libraries folder "ENC28J60 EtherShield Library"s


Connect board to USB, open "EtherShield_webserver" example, modify if necessary MAC and IP address
and upload to board



Connect to your Router or PC Network Card and check for PING


Now time for fun and guaranty some sleepless nights!

No PING received?
Don't worry, we spend a lot of time and test many examples, so will help you.

What projects you can realize using this board?
Some ideas ...
--- Build a garage door opener with Internet or IPhone ---
--- Control using WEB any high or low voltage equipment ---
--- Build simple home automation and control lamps or other home equipment ---
--- Longing processes and save to WEB server SQL base ---
--- Build long distance 4 lines extender using two board connected directly or using Enthernet ---
and many more ...


When you sure that hardware works is time you to build your "Hello Word" project and learn step by step.

MINIMUM code for PING reply


#include "EtherShield.h"

static uint8_t mymac[6] = {0xCF,0x70,0x7C,0xE4,0x8A,0xB8};
static uint8_t myip[4] = {192,168,1,25};

#define BUFFER_SIZE 550
static uint8_t buf[BUFFER_SIZE+1];

EtherShield es=EtherShield();

void setup(){

void loop(){
uint16_t plen,dat_p;

dat_p=es.ES_packetloop_icmp_tcp(buf,es.ES_enc28j60PacketReceive(BUFFER_SIZE, buf));







Additonal information

  Payment accepted:
Credit Card payments , PayPal, Moneybookers, Bank transfer (Europe bank account, 2.00 EUR fee), Western Union

  Postage is fixed at:
- EUR 2,50 per order (appr. GBP 2.00, US $3.50) via AIR Mail without Tracking Number
- EUR 4.00 per order (appr. GBP 3.50, US $5.50) via AIR Mail with Tracking Number (Signature Request)
no matter how many items you buy at a time!

We ship WORLDWIDE through Bulgarian Posts PLC. The shipping usually takes 7-15 days.

If you need your item in a hurry, we offer express shipping via TNT.
Please contact us for the price -

  Import duties, taxes and charges are not included in the item price or shipping charges. These charges
are the buyer's responsibility. Please check with your country's customs office to determine what these additional
costs before you purchase.

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