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05/12/2013
Control and Monitoring from a Smartphone

In the past we've had a tutorial for controlling our KTA-223 USB relay controller over Bluetooth and Wi-Fi, and even directly connected to your Android Device but now we'll take a look at our KTA-323 device and controlling it from a wireless web enabled smartphone, using the newly added, mobile optimised web page.

The KTA-323 is similar to the popular, Arduino compatible KTA-223 but also includes a built in ethernet chip, the end result is the KTA-323 is essentially a KTA-223 but has a built in Ethernet Shield and is enclosed in a DIN Rail mountable enclosure.

Features of the KTA-323

  • 8 relay outputs 5A, 250 VAC
  • DIN rail mountable
  • 4 bi-directional, opto-isolated inputs 5 to 30 VDC
  • 3 Analog inputs (10 bit), jumper selectable for 0 to 5 VDC or 0 to 20 mA
  • Connections via screw terminals
  • Power Indicator, relay status, TX and RX LEDs (serial and ethernet)
  • All enclosed in professional looking plastic case
  • Arduino compatible
  • Accepts XBee form factor expansion modules
  • Communicates via USB (virtual serial port), RS-485, or Ethernet
  • Easily connect multiple units far apart by RS-485
  • Monitor and control I/O remotely on the internet

Recently we have added a mobile optimised web page to the built in firmware which can be modified to suit your needs and then loaded into the device using the Arduino environment, (or used as is out of the box).

Relays (Mobile Version)
Inputs (Mobile Version)


Demo Setup

To get to these pages, use your browser to navigate to the IP address of the KTA-323 (192.168.1.100 by default) and include the suffix /demo/mobile for the relay page and /demo/mobileI for the inputs. With suitable port forwarding or use of a VPN you could access and monitor the device on the go, from anywhere in the world using your smartphone.

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-GR

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