IQRF interoperable products of IQRF Alliance members.

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UniPi Neuron S103 is a universal control unit and a part of Neuron modular PLC (Programmable Logic Controller) product range.

The IQRF variant features the TR-76D smart wireless transceiver compatible with the IQRF Technology communication standard for interoperability with any IQRF-compatible devices.


  • 4× 5-24V DC digital input
  • 1x TR-76D smart IQRF wireless transciever
  • 4× Transistor output (max. 750mA@50V DC)
  • 1× 0-10V analog output
  • 1× 0-10V/4-20mA analog input
  • 1x Galvanically isolated 1-Wire bus
  • RS485 universal bus (for communication with the Modbus protocol)
  • RTC (Real-Time Clock) module with 7-day long backup
  • 1 GB RAM
  • 4× 1.2 GHz CPU
  • 4× USB
  • 1× Ethernet 10/100 Mbps
  • DIN rail mount (35 mm)
  • Anodized aluminium case
  • 24V DC power supply


UniPi Neuron S103-IQRF is a universal control unit. It is a compact PLC (Programmable Logic Controller) which can  be used for home automation. The unit can also be utilized for energy consumption monitoring, data collection and cloud storage or as a gateway for other devices (such as boilers or heaters).

The Neuron features digital inputs, transistor outputs and RS485 serial interface. The S103-IQRF features the TR-76D smart wireless transciever, operating on 868 or 916 MHz bands (can be configured through a corresponding software) and utilizing the IQRF Technology wireless standard.

This standard uses a highly reliable wireless mesh communication broadcasted on sub-gigahertz bands.

Such technology has two main advantages – long signal range and low power consumption. Thanks to the long range, the user does not have to use repeaters or base stations to extend the signal range, and due to using a patented Directed Flooding mesh networking protocol, the communication retains its reliability even in harsh RF environments. Thanks to a 1 GB RAM and 1.2 GHz quad-core CPU, the Neuron has a very low response rate (ie. delay between input signal reception and output response) of about 0.5 ms. The Neuron thus offers a professional level of performance in a compact and affordable package, stored in durable aluminium case. As standard, the unit is equipped with a DIN rail mount to attach the unit into distribution box. The required space is 4 DIN modules (1 module = 17.5 mm width).


Small yet powerful, Neuron S103-IQRF has excellent response time. Thanks to a 1 GB RAM and a quad-core 1.2 GHz CPU, an input-output signal response can be as low as 0.5 s. The Neuron thus offers level of performance comparable with professional PLC's in compact affordable package. 


The basic software provided is the Linux OS along with the Modbus communication interface using TCP protocol - both can be downloaded freely from our website. This basic solution is designed for simple user application implementation and supports remote access along with running the software on the unit itself. Combination of both methods provide the customer with advantages of a distributed system. The S103-IQRF's software was designed to be as open as possible. Customers are thus not limited to a single software solution and can choose from a variety of native, commercial or open-source platforms for control, regulation and PLC configuration.

Note: THe S103-IQRF is not compatible with the Mervis software platform

Native platform

Commercial platforms

Open-source platforms

  • Jeedom
  • FHEM
  • PiDome
  • Pimatic
  • Domoticz
  • DomotiGa  

Inputs and outputs

Digital inputs are designed for reading of binary values (0/1, on/off, open/closed etc.) and are thus suitable for connecting switches, motion sensors, window or door magnetic locks etc.

Digital outputs can be used to control binary state devices, such as lightning switches, window shutters control, remote door control etc.

Analog inputs are used to receive either 0-10V voltage or 0-20mA current signals. Alternatively, they can be used for reading data from corresponding sensors, such as resistance thermometers. The user can adjust the input mode via corresponding control software.

Analog outputs are used for control of external devices such as three-way valves or heat exchangers via 0-10V voltage or 0-20mA current signals. Analog outputs allow current or voltage regulation - alternatively, Group 1 inputs can be used in combination with resistance thermal sensors.

The S103-IQRF is suitable for all non-safety systems, yet thanks to the Modbus compatibility, it can be used along safety system controllers as well as with any other external device supporting the protocol. 


The S103-IQRF is CE and EMC tested.

According to standard, all UniPi Neuron products can be used in:

  • Residential buildings, apartments
  • Commercial areas, offices, banks
  • Entertainment areas, cinemas, bars, pubs, dance clubs
  • Outdoor places, gas stations, parking lots, sport centers
  • Areas of light industry, workshops, laboratories, service centers

According to European Standards, the Neuron is a fully fledged professional control unit. 

Other materials

For more information about the UniPi Neuron product range, visit the Neuron series introduction or its technological introduction.  For more information about the IQRF Alliance and IQRF technology, visit the IQRF webpage


Development sets



Development sets