Arduino Opta WiFi Micro PLC (Ethernet and USB-C ports, RS485, WiFi/Bluetooth LE)
Industrial micro PLC with Arduino and IEC 61131-3 PLC language support, real-time control, OTA updates, Ethernet, USB-C, RS485, WiFi, and Bluetooth LE connectivity.
Pinout
- Digital Input terminalsScrew terminalsType · Signal
- Relay outputsScrew terminalsType · Control
- RS485 ABTerminalsType · Signal
- GNDTerminalsType · Ground
- 24VPower terminalType · Power
| Pin | Position | Type |
|---|---|---|
| Digital Input terminals | Screw terminals | Signal |
| Relay outputs | Screw terminals | Control |
| RS485 AB | Terminals | Signal |
| GND | Terminals | Ground |
| 24V | Power terminal | Power |
Pin details
5 connections- Digital Input terminalsScrew terminalsSignal
- Relay outputsScrew terminalsControl
- RS485 ABTerminalsSignal
- GNDTerminalsGround
- 24VPower terminalPower
Other MCUs
228 other optionsSpecialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.
:MOVE mini MK2 buggy kit visual preview:MOVE mini MK2 buggy kit
16-Ch Servo Driver Breakout for micro:bit, I2C visual preview16-Ch Servo Driver Breakout for micro:bit, I2C
2x40 Right Angle Edge Connector for micro:bit visual preview2x40 Right Angle Edge Connector for micro:bit
32F429IDISCOVERY / STM32F429I-DISC1 Discovery Kit visual preview32F429IDISCOVERY / STM32F429I-DISC1 Discovery Kit
7-segment for micro:bit visual preview7-segment for micro:bit
Adafruit CAN Bus BFF Add-On for QT Py visual previewAdafruit CAN Bus BFF Add-On for QT Py
$8.95
Adafruit CH552 QT Py - 8051 Dev Board with STEMMA QT visual previewAdafruit CH552 QT Py - 8051 Dev Board with STEMMA QT
$4.95
Adafruit CRICKIT for Circuit Playground Express visual previewAdafruit CRICKIT for Circuit Playground Express
Adafruit CRICKIT for micro:bit visual previewAdafruit CRICKIT for micro:bit
Adafruit DC Power BFF Add-On for QT Py visual previewAdafruit DC Power BFF Add-On for QT Py
$7.95
Adafruit Feather 328P - Atmega328P 3.3V @ 8 MHz visual previewAdafruit Feather 328P - Atmega328P 3.3V @ 8 MHz
Adafruit Feather 32u4 Adalogger visual previewAdafruit Feather 32u4 Adalogger
Related groups
4 groups
10 I/Os PLC Module - CPU Arduino Nano (Optoisolated Output) visual previewArduino
About 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.
Boards · Arduino boards · 77 parts
10 I/Os Relay Module - CPU ESP32 (Relay Output) visual previewESP32
Wi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.
Boards · ESP32 boards · 159 parts
15x7 CharliePlex LED Matrix FeatherWing - Cool White visual previewAdd-ons
About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.
Boards · HATs, Shields & add-ons · 270 parts
Adafruit DVI Breakout Board for HDMI Source Devices visual previewPi Pico
The Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.
Boards · Pico & RP2040 boards · 43 parts