
MPINO Series
MPINO-8A8T-S
MPINO-8A8T-S Industrial Arduino Controller
MPINO-8A8T-S is an ATmega128-AU-based industrial Arduino-compatible PLC controller with 8 isolated digital inputs and 8 transistor (sink) outputs. Onboard RS-485, 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-8A8T-S is an ATmega128-AU-based industrial Arduino-compatible PLC controller with 8 isolated digital inputs and 8 transistor (sink) outputs. Onboard RS-485, I²C with Modbus RTU, programmable in the Arduino IDE. DIN-rail mountable for automation, testing, HMI integration and embedded control.
Key features
- ATmega128-AU core, programmable in the Arduino IDE (MegaCore)
- 8 opto-isolated digital inputs (NPN/PNP, up to 40 V tolerant)
- 8 transistor (sink) outputs for fast DC switching
- 4 analog inputs (0–5 V / 4–20 mA / 0–10 V ranges)
- 2 NTC temperature inputs (−40 to +120 °C)
- Industrial communication: RS-485, I²C · Modbus RTU
- DIN-rail 35 mm mountable, isolated field I/O for the factory floor
Specifications
/ SPEC| MCU | ATmega128-AU |
|---|---|
| Power input | DC 12V – 24V |
| Digital inputs | 8 |
| Transistor outputs | 8 |
| Analog inputs | 4 |
| Temperature sensor inputs | 2 |
| High-speed pulse inputs | 4 |
| High-speed pulse outputs | 6 |
| RS-485 | 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-8A8T-S 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.
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
8 isolated digital input channels
Eight digital input channels read external switches and sensors reliably, straight from the terminal block.
D0–D7 inputs
Eight digital input points in total
COM0 common
All 8 points share COM0
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 8 channels referenced to COM0.
Transistor output
8 isolated transistor output channels
8 transistor output channels switch and control external loads reliably.
D32–D39 outputs
8 sinking transistor output points
V+ / V− supply
Separate terminals for the load-side supply
Optocoupler isolation
Control and output circuits kept apart
Sinking output
Steady switching control for external loads
Output channel layout
* Example wiring for external loads (sinking transistor output)
Optocoupler isolation
The transistor outputs use optocoupler isolation to separate the control side from the output side electrically, cutting noise coupled back from the load and keeping the sinking output stable.
Analog inputAnalog Input
4 analog input channels, current or voltage selectable per channel
A0–A3 come out on the same green screw terminal block as the digital inputs, at the board's upper right. Every channel ships as a 0(4)–20 mA current input; pull that channel's header cap and it becomes a DC 0(1)–5 V voltage input, and DC 0–10 V can be requested when ordering.
A0–A3 · 4 channels
Four 10-bit (0–1023) analog input points
0(4)–20 mA by default
Header cap fitted at the factory · 250 Ω input
Cap off → DC 0(1)–5 V
Selected independently per channel · 200 kΩ
External reference
REF3025 +2.5 V on AREF for accurate readings
Analog input terminals
* The same green screw terminal block as the digital inputs, at the board's upper right, in the order A0 · A1 · A2 · A3 · AGND. Each channel has its own 2-pin range-select header, shipped with the cap fitted. AGND is tied to GND through a 2012 0 Ω resistor.
Input range options
| Input range | How it is set | Input resistance |
|---|---|---|
| 0(4)–20 mA | Header cap fitted (factory default) | 250 Ω |
| DC 0(1)–5 V | Header cap removed | 200 kΩ |
| DC 0–10 V | Resistor change + cap removed (on request) | 400 kΩ |
All four channels are 10-bit (0–1023) and reference REF3025 +2.5 V fed to AREF, so analogReference(EXTERNAL) must be called. The range is selected independently per channel.
Temperature inputNTC Temperature
2 NTC temperature channels on their own connectors
NTEMP1 and NTEMP2 each take an NTC 3950 10 kΩ thermistor and read −40 to 120 °C in 0.1 °C steps. They use their own connectors, separate from the analog inputs, and have no polarity — the two leads are interchangeable.
NTEMP1 · NTEMP2
Two temperature channels on A4 (D52) / A5 (D53)
NTC 3950 10 kΩ
10 kΩ at 25 °C, B constant 3950 K
−40 to 120 °C
0.1 °C resolution (over 0–40 °C)
Own JST XH connectors
2.54 mm 2-pin × 2 · no polarity
NTC temperature connectors
* Two white JST XH 2-pin connectors (2.54 mm pitch) — 2 pins per channel, 4 pins for both. The NTC input has no polarity, so the two leads are interchangeable.
Temperature sensor specs
| Sensor | NTC 3950 K · 10 kΩ at 25 °C |
| Channels | NTEMP1 = A4 (D52) · NTEMP2 = A5 (D53) |
| Measuring range | −40 to 120 °C |
| Resolution | 0.1 °C (over 0–40 °C) |
| Connector | White JST XH 2-pin (2.54 mm) × 2 · no polarity |
| Reading | ntcRead() returns tenths of a degree (251 → 25.1 °C) |
A4 / A5 share the ADC with the analog inputs, so analogReference(EXTERNAL) must be called for the temperature channels too.
Downloads
/ FILESFAQ
How many I/O points does the MPINO-8A8T-S have?▾
The MPINO-8A8T-S provides 8 isolated digital inputs and 8 transistor outputs, with onboard RS-485, I²C communication. See the specification table for the full breakdown.
Does the MPINO-8A8T-S support Modbus RTU?▾
Yes. The MPINO-8A8T-S supports Modbus RTU — master and slave alike — over its serial interface.



