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IP controller with Web, 32 I/O, HTTP API, SMTP - DAEnetIP3-ET

DAEnetIP3-Ex is IP module for remote monitoring and control in Ethernet based networks. It includes 16 digital outputs, 8 analog inputs, 8 digital inputs and one UART port. It can be configurated via Web browser, TCP/IP, Virtual Serial Port, HTTP requests, Telnet and serial commands. It can send emails based on inputs events, and can control another DAEnetIP3 controller over the ethernet network (box-to-box mode). Supported by DRMv3 Software. Works with Home Assistant, Domoticz and OpenHAB home automation systems as well as with Node-RED IoT platform. Now with FREE Android and iOS App!

Price: $126.00
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DAEnetIP3-ET specifications

  • 10/100 Mbit Ethernet interface with Link Led. Auto MDIX
  • UART interface for RS232/RS485 serial connection with other such controllers. UART can be used also for configuration of the parameters
  • Extended supply voltage range (7.5V - 25V) DC (for series after 06 Nov 2017)
  • Power consumption: 12VDC / 90mA
  • 1 x 16 digital outputs. Levels: 0 – 3.3V
  • 1 x 8 digital inputs. Levels: 0 – 3.3V
  • 1 x 8 analog inputs. Referent voltage: 2.048 V, resolution: 10 bits (for series after 06 Nov 2017)
  • On boot the outputs are set with states before reset
  • Built in RTC (Real Time Clock). It can be synchronized via NTP manually or automatically each 6 hours
  • Capacitor power backup keeps time for days during power failure
  • Virtual Serial Port - it may be accessed with Serial RS232 commands over TCP/IP network
  • Integrated WEB server with password and features like Ajax parameters reading
  • Configuration utility software DAEnetIP3 Manager available - here
  • Telnet commands
  • HTTP API commands
  • TCP/IP ASCII protocol with optional RC4 encryption
  • All the network ports can be defined by the user
  • Supports ICMP (ping)
  • 19 modes for I/O lines such as inverting, timer, pulses, setting output via input and switch ON/OFF according particular time (scheduling)
  • Any input may be referred to control any output of this or another controller in the TCP/IP network
  • Linearization for the analog inputs
  • Box-to-Box (distributed) mode
  • SMTP with authentication (SSL is not supported)
  • E-mail notifications for various events
  • IP address protection
  • Size: 108mm x 45mm x 24mm
  • Supported by DRMv3 Software - New;
  • Software by Denkovi - DRM Software (Windows/Linux), DAEnetIP3 Configuration utility, Command Line Tool, DAE-iModules App for iOS and DAE-aModules App for Android;
  • Third party software - more info here;
  • Supported by Home Assistant home automation software - New;
  • Supported by openHAB home automation software;
  • Supported by Domoticz home automation software;
  • Supported by Node-RED IoT platform;
  • Various software examples - here;
  • Documentation: DAEnetIP3 user's manual  







When purchase this controller, you will receive:

  • 1 x DAEnetIP3-ET controller. User manual - here
  • 3 x plastic spacers (legs for DAEnetIP3)


Application examples

Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - control elctrical devices
Controlling electrical devices remotely
Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - monitor sensors
Sensor monitoring (Various sensors for temperature, humidity or distnace can be connected - schematics in the user manual)
Access many controllers from single IP address (TCP/IP Serial bridge) 
Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - thermostat
Web based thermostat
Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - TCP/IP Serial bridge
Simple PLC applications
Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - alarm


Distributed systems (Box-to-Box, M2M)


E-mail alerts on event


Typical connection


Power Supply

Please pay attention that:

  • The middle pin of the power jack is +12VDC
  • There is not protection against reverse voltage.
  • We recommend to use power supply adaptor that outputs 12 VDC stabilized.
  • Inproper power supply voltage will damage the device!


We recommend to use this 12VDC Power Supply Adaptor (SYS1357-2412) that may be found also in our store. Please contact with us if you have questions. We sell the adaptor with one of the AC plugs for: USA, UK, EU, AUS. It is sold separately !


Access via Virtual Serial Port

DAEnetIP3 and all devices that are based on it may be accessed/controlled via Virtual Serial Port. In other words the the device in this auction may be accessed via COM Port RS232 commands from your computer because it will apear as COM Port:

  • DAEnetIP3 appears as VSP (COM Port) on your PC
  • It may be accessed with any Serial Terminal (for exaple HyperTerminal)
  • The only thing the user has to do is to send and receive commands via the COM Port. All the TCP/IP commnucation is done by the driver.
  • There is not matter if your DAEnetIP3 device is connected to your PC over LAN cable or Wireless Wi-Fi network, it will appear as VSP (COM Port) on your PC. You need to set only the proper IP, Port and COM Port Name.





Example commands and responses that are sent/received via the DAEnetIP3 VSP (COM Port). The serial address of DAEnetIP3 is 00.

  • Get Digital Input 1 level (Din1), counting in the commands is zero based:
    • Send: 00BV0=?;
    • Receive: 00BV0=0; //The level is low
  • Get Analog Input 1 level (Ain1), counting in the commands is zero based:
    • Send: 00CV0=?;
    • Receive: 00CV0=512;
  • Set Digital Output 12 (Do12) in High level, counting in the commands is zero based:
    • Send: 00ASB=1;
    • Receive: 00ASB=1;
  • Get the Ethernet IP address of the module:
    • Send: 00MIP=?;
    • Receive: 00MIP=;

All the commands are described in the  DAEnetIP3 user's manual


Access via Web

DAEnetIP3 has built-in web server for configuration. All the parameters can be accessed via web browsers like Mozilla, IE and Opera. The pages for I/O ports are refreshed automatically. In this way it is possible to track all the I/O states in real time without manually refreshing the page. The web browser must support JavaScript.
The page below the text shows the page for the analog inputs. Their states are automaticaly refreshed each 2-3 seconds. The user doesn't have to click refresh button each time but just tracks the I/O changing values almost in real time (Ajax).




Access from Home Assistant

Home Assistant is very powerful home automation system. Please checkout our application note for more information.




Access DAEnetIP3 from OpenHAB

OpenHAB is a third party open source free home automation software. Run your server on Linux, macOS, Windows, Raspberry Pi, PINE64, Docker, Synology... Access it with apps for the web, iOS, Android and others. Use a powerful and flexible engine to design rules, with time and event-based triggers, scripts, actions, notifications and voice control.


The communication way is done via HTTP GET requests. More information about the integration with our hardware - or contact with us.




Access DAEnetIP3 from Domoticz

Domoticz is a free open source popular home automation software which can run on Windows, Linux, MAC, Rasberry PI and others. It is a home automation system design to control various devices and receive input from various sensors. Access it with apps for the web, iOS, Android and others.


More information about how to connect and use it with our hardware - or contact with us.




Access DAEnetIP3 from Node-RED

Node-RED is a flow-based programming platform for the Internet of Things. We prepared small example for communication between Node-RED and our device. More info about Node-RED and denkovi modules: here

You can download the example Node-RED flow from here for HTTP GET Requests





Access DAEnetIP3 from mobile devices

iOS App DAE-iModules


DAE-iModules DAE-iModules DAE-iModules DAE-iModules DAE-iModules


Android App DAE-aModules

Android app on Google Play




The video bellow shows how you can control DAEnetIP3 based device - Wi-Fi 12 Relay Module. Any other Denkovi Ethernet Device from this list can be acessed with same success from your iOS device via DAE-iModules





Some useful information about DAE-iModules and DAE-aModules and DAEnetIP3:

  • Select device DAEnetIP3. Enter the IP, HTTP Port and web password for the device
  • Tab "Other inputs" contains the analog input values for the hardware linearization (by DAEnetIP3) while tab "Analog Inputs" shows their original values
  • To connect and scale the analog inputs with sensors, please refer to this link:



Access via software DRMv3

This device is supported by DRMv3 Software.

The device can be found in the device list under the default name: DAEnetIP3







Access via DAEnetIP3 Manager

A free utlity for all DAEnetIP3 based modules for controling, configuration, monitoring and log all the DAEnetIP3 parameters.

Download and documentation - here


Access via DAEnetIP3 Command Line Tool

Windows/Linux/osX command line tool create especially for DAEnetIP3. It allows easy integration of the DAEnetIP3 into third party software, control from command promt, control from bat files, from bash scripts, from shortcut and others. For more info and download here:


Access via HTTP API commands

Bellow are shown example commands. Please note that there is HTTP API password (by default it is admin) to prevent unauthorized access. 

Example commands:

send: http://your.ip.address/command.html?P=admin&ASG=?& (get the whole PortA status of DAEnetIP3)

receive: <!DOCTYPE html><html><body>ASG=0F0F;</body></html>


send:http://your.ip.address/command.html?P=admin&ASG=?&BVG=?&CV0=?& (send several commands at a time)

receive: <!DOCTYPE html><html><body>ASG=FFFF;BVG=0F;CV0=12;</body></html>



Access via Telnet

DAEnetIP3 can be easily accessed via Telnet. Simple password protection mechanizm is provided. Note that Telnet is not secure protocol, so it is recommend using only in secure networks.

On the figure right to the text is shown how DAEnetIP3 controller with IP address is accessed via Telnet with Windows XP.

  • Open command line and type: telnet "Controller IP"
  • Use the passowrd, in our case this is admin. After correct login the controller responds with welcome message.
  • The first command is ASG=0000; - it sets all 16 DO in low level.
  • CV0=?; gets the ADC channel 0 value. Its 415; It may be from 0 up to 1023.
  • BVG=?; gets the eight digital inputs levels. Its 00, which means all inputs are in low level
  • ASG=FFFF; Sets all the 16 DO in high level.

Ofcourse these commands are only small part. The full list may be found in the documentation.

Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - Telnet / command line



Access via Serial Line (UART or RS485)

Each DAEnetIP3 controller may be accessed via UART serial communication. The protocol is given in the documentation. This is provided in case you need RS485 network for example accessed only with one IP address. Each controller has serial address, that is given in each packet sent to the server bridge from user software. The figure below to the text shows how 3 DAEnetIP3 controllers are connected in serial network using UART <-> RS485 convertors (not included in the auction). The serial network may be accessed over LAN, WLAN or WAN with user TCP/IP socket based software.

Wi-Fi IEEE 802.11 b/g DAQ TCP/IP controller - Serial (UART) access

Access via TCP/IP socket

DAEnetIP3 controller has possibility for access via TCP/IP socket. The user may connect with custom software to port that is defined for socket based TCP/IP communication.
The protocol is not based on some standart, but it is developed especially for the DAEnetIP3 controller. The full description of the protocol may be found in the user manual.
The reason for creating such communiation way is that TCP/IP sockets are widely used in all programing languages.In this way you may create software for DAEnetIP3 without learning difficult and heavy protocols.
The controller supports RC4 encryption/decription for the TCP/IP socket comunication. This is security measure that gives you basic protection.
Another security option is IP address protection, that allows only one IP to access the DAEnetIP3 via Web, Socket and Telnet.




Denkovi software

  • DAE-iModules - App for iOS mobile devices, support link here
  • DAE-aModules - App for Android mobile devices, support link here
  • DAEnetIP3 Manager - here
  • DRMv3 Software - software for monitoring, control and configuration - here
  • DRM Software - software for controlling relays - here
  • DAEnetIP3 Command Line Tool - here


Third party software



Please note that TFTP firmware upgrade is not anymore supported. From our experience we don't recommend to use it because it is unsafe and can damage your DAEnetIP3 controller.

Date Version Notes
 6 Oct 2013


New features and bug-fixing list: here. The controller will be shipped with this version.
Sep 2011 1.0.0 The initial release (documentation for 1.0.0 version)


Hardware Revisions

Date Changes
06 Nov 2017

Series produced after this date are with:

  • 2.048VDC reference source for the PortC pins (ADC) instead of 2.5VDC
  • 68K pull-down resistors for the PortC pins (ADC) instead of 100K
  • Power supply voltage range 7.5VDC to 25VDC instead of 12VDC


Software examples


WEB TCP/IP IO controller
32 IO ethernet controller
ip controller
Power Supply Voltage (DC): 7.5...25 V
Max. Current Consumption: 90mA at 12VDC mA
Interface: Ethernet
Protocol: HTTP API
Custom Messages
Web Server: Yes
Digital Inputs Count: 8
Digital Inputs Range: 0..3.3 V
Digital Outputs Count: 16
Digital Outputs Range: 0-3.3 V
Analog Inputs Count: 8
Analog Inputs Range: 0-2.048 V
Analog Inputs Resolution: 10 bit
Real Time Clock (RTC): Yes


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