Find out the differences between the Unipi Neuron and Unipi 1.1 controllers
Unipi Neuron product line, powered by the Raspberry Pi computer, represents compact and powerful controllers suitable for a wide range of automation tasks, from smart home to HVAC (heating, ventilation, air conditioning) control to remote management and monitoring. The Unipi 1.1 is an extension board for the Raspberry Pi computer that allows it to function as an inexpensive and simple controller. That makes it suitable for smaller projects, education, prototyping or smart home control.
Note: The number and type of inputs, outputs and communication interfaces available on Neuron controllers differ depending on the specific model - see the input/output table below.
| Comparison | ||
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| Product line | Unipi Neuron | Unipi 1.1 |
| Computing module | ||
| Module type | Raspberry Pi 3 Model B+ Raspberry Pi 4 Model B |
Raspberry Pi 3 Model B+ Raspberry Pi 4 Model B |
| CPU | RPi 3: Quad-core, 1.4 GHz RPi 4: Quad-core, 1.5 GHz |
RPi 3: Quad-core, 1.4 GHz RPi 4: Quad-core, 1.5 GHz |
| RAM | Raspberry Pi 3: 1 GB Raspberry Pi 4: Selectable capacity (2/4/8 GB) |
Raspberry Pi 3: 1 GB Raspberry Pi 4: Selectable capacity (2/4/8 GB) |
| Internal memory | microSD memory card | microSD memory card |
| Inputs and outputs | ||
| Digital inputs | Yes | Yes |
| Digital outputs | Yes | No |
| Relay outputs | Yes | Yes |
| Analog inputs | Yes | Yes |
| Analog outputs | Yes | Yes |
| Communication interface | ||
| RS485 | Yes | No |
| RS232 | No | No |
| 1-Wire | Yes | Yes |
| Ethernet | Raspberry Pi 3: 300 Mbps Raspberry Pi 4: 1 Gbit |
Raspberry Pi 3: 300 Mbps Raspberry Pi 4: 1 Gbit |
| USB | Raspberry Pi 3: 4× USB 2.0 Raspberry Pi 4: 2× USB 2.0 + 2× USB 3.0 |
Raspberry Pi 3: 4× USB 2.0 Raspberry Pi 4: 2× USB 2.0 + 2× USB 3.0 |
| Software | ||
| Open-source | Yes, powered by Linux OS | Yes, powered by Linux OS |
| Mervis | Licence request included in the package | No (licence request available as a standalone product or as a part of the complete set) |
| API | EVOK, Modbus TCP, SysFS | EVOK |
| Other features | ||
| Dimensions |
Type S: 70×90×60 mm |
Unipi 1.1: 198×88×20 mm Unipi 1.1 Lite: 105×88×20 mm |
| DIN rail mount (35 mm) |
Yes | No (a holder is available as a standalone product or as a part of the complete set) |
| Aluminium chassis (IP20) |
Yes | No (a plastic cover is available as a standalone product or as a part of the complete set) |
| Warranty duration | 2 years | 2 years |
| Special models | - | - |
| Customization options | Yes | No |
| Recommended use | Automation projects, HVAC, control, monitoring, remote management, SCADA, sensorics, smart home... | Simple smart home projects, education, prototyping, application development... |
| Display on e-shop | Display the Neuron line | Display the Unipi 1.1 |
Neuron line overview
| Name | DI | DO | RO | AI | AO | RS485 |
| Type S, the size on DIN rail: 4 modules = 7 cm | ||||||
| S103 | 4 | 4 | - | 1 | 1 | 1 |
| S103-G1 | ||||||
| Type M, the size on DIN rail: 8 modules = 14 cm | ||||||
| M103 | 12 | 4 | 8 | 1 | 1 | 1 |
| M203 | 20 | 4 | 14 | 1 | 1 | 1 |
| M523 | 8 | 4 | 5 | 5 | 5 | 2 |
| Type L, the size on DIN rail: 12 modules = 21 cm | ||||||
| L203 | 36 | 4 | 28 | 1 | 1 | 1 |
| L523 | 24 | 4 | 19 | 5 | 5 | 2 |
| L533 | 12 | 4 | 10 | 9 | 9 | 3 |
1) GSM/GPRS module
Unipi 1.1 and Unipi 1.1 Lite features
| Unipi 1.1 | Unipi 1.1 Lite | |
| Digital inputs | 12+2 | 6 |
| Relay outputs | 8 | 6 |
| Analog inputs | 2 | - |
| Analog output | 1 | - |
| 1-Wire bus | Yes | Yes |
| I2C port | Yes | Yes |
| UART port | Yes | Yes |
| RTC module | Yes | No |
