Monarco HAT.
Analog and digital inputs and outputs, RS-485 and 1-Wire bus for the Raspberry Pi
Turn Raspberry Pi minicomputer into a PLC or a mini industrial PC (IPC) and use it in your automation project.


Monitoring, archiving and control
- Reading and archiving data from standard industrial sensors
- Monitoring of machines
- Providing communication gateway between various devices
- Feedback control in non-critical applications
Those are the applications we had in mind when we designed the add-on board which we call the Monarco HAT.

Monarco HAT in action
Analog and digital I/O, RS-485 and 1-Wire in compact form
- 4x digital IN, 4x digital OUT
- 2x analog IN, 2x analog OUT
- 1x RS-485
- 1x 1-Wire bus
- 9 LED indicators
- Power supply: 10-30 VDC
- Battery-backed RTC chip
- Hardware watchdog
- High quality push-in terminals, detachable connector
Download full technical specification of the Monarco HAT and review the assembly instructions.

Developing solutions with the Monarco HAT
It's the software which brings any hardware device to life. Use the Monarco HAT with the software platform of your choice.
Professional software
Our first choice for programming is REXYGEN, a family of software products for projects in automation, robotics, data acquisition, process control and feedback control in general.
REXYGEN offers a graphical development environment for programming the algorithms. You can use standard desktop or laptop PC. You create the algorithms from the so-called function blocks. The library includes countless items (timers, comparators, filters, PID controllers and many more).
Open source

We understand the value of open source software and freedom of choice.
- Open source library for the C language
- Open source library for Node.js
- Open source library for Node-RED
- Complete documentation of the interface so that anyone can develop libraries for additional frameworks and languages (Python, C#, etc.)
GitHub repository
All the Monarco HAT resources are available in a public GitHub repository.
Programming with REXYGEN

- Graphical programming without hand-coding
- Industry-proven function blocks to use and re-use
- User interface (HMI) for desktop, tablet and smartphone
- Easy integration into business IT infrastructure (ERP/MES)
- REST API for integration with virtually any system, framework or programming language
- Up to 2 ms sampling rate with standard Raspbian distribution
Explore the Getting started guide for using the Monarco HAT with REXYGEN.
Monarco HAT turns your Raspberry Pi into a versatile controller or data logging device
Automation kit with RexCore Pro

- Monarco HAT with accessories
- Raspberry Pi 3 B+
- Preinstalled 8 GB or 16 GB micro SD card
- RexCore Professional (REXYGEN runtime)
- Aluminium case for DIN-rail mounting
- Shipping worldwide
359,- EUR
Automation kit with RexCore Plus

- Monarco HAT with accessories
- Raspberry Pi 3 B+
- Preinstalled 8 GB or 16 GB micro SD card
- RexCore Plus (REXYGEN runtime)
- Aluminium case for DIN-rail mounting
- Shipping worldwide
279,- EUR
Plain board with optional housing

- Monarco HAT
- Detachable connector with push-in terminals
- Metal spacers and screws
- Optional: aluminium case for DIN rail mounting
- Optional: cable for powering the official 7" Raspberry Pi display
- Shipping worldwide
129,- EUR
Looking for a local Monarco HAT distributor?
Then check out the list of Monarco HAT resellers.
Frequently asked questions (FAQ)
Additional information about the Monarco HAT
What does HAT mean?
Can I use multiple HATs with a single Raspberry Pi?
Is the MCU of the Monarco HAT meant for running my own algorithms?
How does the Monarco HAT communicate with the Raspberry Pi?
Can I still use the GPIO pins of the Raspberry Pi?
When will I receive my Monarco HAT?
- Raspberry Pi is a trademark of the Raspberry Pi Foundation.
- 1-Wire is a trademark of Maxim Integrated Products, Inc.