MPINO Series
MPINO-16A8R8T
MPINO-16A8R8T Industrial Arduino Controller
MPINO-16A8R8T is an ATmega2560-based industrial Arduino-compatible PLC controller with 16 isolated digital inputs and 16 relay + transistor outputs. Onboard RS-232, RS-485, UART, I²C with Modbus RTU, programmable in the Arduino IDE. DIN-rail mountable for automation, testing, HMI integration and embedded control.
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Overview
/ OVERVIEWMPINO-16A8R8T is an ATmega2560-based industrial Arduino-compatible PLC controller with 16 isolated digital inputs and 16 relay + transistor outputs. Onboard RS-232, RS-485, UART, I²C with Modbus RTU, programmable in the Arduino IDE. DIN-rail mountable for automation, testing, HMI integration and embedded control.
Key features
- ATmega2560 core, programmable in the Arduino IDE (MegaCore)
- 16 opto-isolated digital inputs (NPN/PNP, up to 40 V tolerant)
- 8 relay outputs for AC/DC dry-contact switching
- 8 transistor (sink) outputs for fast DC switching
- 4 analog inputs (0–5 V / 4–20 mA / 0–10 V ranges)
- 2 analog outputs
- 2 NTC temperature inputs (−40 to +120 °C)
- Industrial communication: RS-485, RS-232, UART, I²C · Modbus RTU
- DIN-rail 35 mm mountable, isolated field I/O for the factory floor
Specifications
/ SPEC| MCU | ATmega2560 |
|---|---|
| Power input | DC 12V – 24V |
| Digital inputs | 16 |
| Relay outputs | 8 |
| Transistor outputs | 8 |
| Analog inputs | 4 |
| Analog outputs | 2 |
| Temperature sensor inputs | 2 |
| High-speed pulse inputs | 2 |
| High-speed pulse outputs | 4 |
| RS-232 | 1ch |
| RS-485 | 1ch |
| UART | 1ch |
| I²C | 1ch |
| Modbus RTU | Yes |
| LS Cnet | Yes |
| Mitsubishi MC | Yes |
| Arduino IDE compatible | Yes |
Field wiring, COM grouping, and the full Arduino pin map for the MPINO-16A8R8T are documented in the user manual (download below). Digital inputs are opto-isolated and accept NPN or PNP sensors depending on COM wiring; outputs and analog ranges follow the terminal layout in the manual.
Software
Arduino IDE / MPINO Studio 2
Arduino IDE compatible
Works with the Arduino toolchain you already use
MPINO STUDIO2 included
Arduino code and ladder logic in one tool
Arduino + ladder logic
Build control logic faster with familiar ladder rungs
Setting up the toolchain
Using the Arduino IDE requires the ARDUINO SDK (the ILOGICS board package) to be installed. It is not required when you work in MPINO STUDIO2.
This board can also be used without the ARDUINO SDK by selecting the MEGA2560 board in the Arduino IDE. In that case the ILOGICS built-in commands are not available.
Download CableMP DOWNLOAD CABLE
Programming this board needs the dedicated download cable
The upload port on this board is a mini 5P USB socket, but the USB-to-serial conversion lives in the CABLE, not on the board. Plug in an off-the-shelf mini 5P USB cable and the PC never enumerates a port, so nothing uploads. The MP download cable is one we build ourselves — buy one and keep using it.
USB-TTL converter inside
The conversion IC sits in the connector housing
Generic mini 5P cannot be used
An ordinary cable enumerates no port and cannot upload
USB-A to mini 5P
Connects the PC's USB port to the board's upload port.
Made by ILOGICS
A dedicated cable for use with ILOGICS products.
What the cable is
* Having the conversion IC inside the housing is what sets this apart from an ordinary cable. Board end is mini 5P, PC end is USB-A, and the cable is 1 m long.
Sold separately — add it alongside the board in the purchase panel below.
Cable specification
| Item | Detail |
|---|---|
| PC end | USB-A plug |
| Conversion | USB-TTL converter inside the cable |
| Board end | USB mini 5P plug |
| Length | 1 m |
| Driver | FTDI |
Anything not listed here is available on request. We do not publish values we have not confirmed.
Installing the driver
- Connect the MP download cable between the PC's USB port and the board's upload port.
- Open Device Manager and check whether USB Serial Port (COMx) appears under Ports (COM & LPT).
- If it does not appear, install the FTDI driver from the resources section and reconnect the cable.
- In your development tool, select the same COM number Device Manager shows, then upload.
Digital input
16 isolated digital input channels
Sixteen digital input channels read external switches and sensors reliably, straight from the terminal block.
D22–D37 inputs
Sixteen digital input points in total
COM0 / COM1 commons
Two independent input groups
Optocoupler isolation
Control circuit protected from field noise
NPN / PNP sensors
Works with either sensor wiring convention
Input channel layout
* Example wiring for external switches or sensors (NPN/PNP shared)
Optocoupler isolation
The digital inputs use a bidirectional optocoupler stage (anti-parallel LEDs), so either NPN or PNP signals are read reliably, with all 16 channels referenced to COM0 / COM1.
Relay output
8 relay output channels (1a1c)
8 relay output channels switch and control external loads reliably.
D62–D69 outputs
8 relay contact output points
8 × 1a1c relays
Each output is an independent relay contact
2 outputs per COM
Each COM terminal is shared by 2 outputs
Electrical isolation
Control and output sides separated by the relay
Output channel layout
* Example wiring for external loads (relay contact output)
Relay output structure
Each relay output is a 1a1c relay that mechanically separates the control side from the output side, with 2 outputs sharing one COM terminal. Being a volt-free contact, it switches both AC and DC loads.
Transistor output
8 sinking transistor output channels (N-MOSFET)
8 sinking transistor output channels switch and control external loads reliably.
D39–D46 outputs
8 sinking transistor output points
DO_V+ common supply
Loads wire between DO_V+ and the output terminal
N-MOSFET sink
IRFRU024N · 3A/point · 15A/COM
DC 0–55V loads
ON connects to GND (sink); OFF floats
Output channel layout
* Example wiring for external loads (sinking transistor output)
N-MOSFET sink output
The transistor outputs are sinking outputs built on the IRFRU024N N-MOSFET. When the MCU GPIO drives the gate, the output terminal is pulled to GND (ON); the load wires between DO_V+ and the output terminal. Each point sinks up to 3A (15A per COM) for DC 0–55V loads.
Downloads
/ FILESFAQ
How many I/O points does the MPINO-16A8R8T have?▾
The MPINO-16A8R8T provides 16 isolated digital inputs and 16 relay outputs, with onboard RS-485, RS-232, UART, I²C communication. See the specification table for the full breakdown.
Does the MPINO-16A8R8T support Modbus RTU?▾
Yes. The MPINO-16A8R8T supports Modbus RTU — master and slave alike — over its serial interface.
Related controllers
/ RELATED
Related guides
/ DOCSModbus RTU on Industrial Arduino: A Practical Guide
Wire RS-485, run a Modbus RTU master and slave on MPINO controllers with the ILIB library, and integrate with HMIs and SCADA.
RS-485 Networking for Industrial Arduino Controllers
Multi-drop wiring, termination, biasing, and automatic direction control for reliable RS-485 field buses.
How to Connect an HMI to an Industrial Arduino
Expose live I/O and process values to a touchscreen HMI over Modbus RTU or I²C, with register mapping examples.