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Arduino

Arduino Opta (Lite/RS485/WiFi)

Imported from Elementic Devices.xlsm on 2026-03-25.

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Device information

Controller
STM32H747
Category
Industrial / PLC-grade
Pins
11

Controller details

STM32H747

STMicroelectronics · STM32H7 · Dual Arm Cortex-M7 + Cortex-M4

2048 KB flash · 1024 KB RAM · 168 GPIO

Starter Arduino code

Device specific
// Elementic starter sketch
// Device: Arduino Opta (Lite/RS485/WiFi)
// Device Excel ID: 4
// Controller: STM32H747

void setup()
{
    Serial.begin(115200);
    delay(500);

    Serial.println("Elementic device booting...");
    Serial.println("Device: Arduino Opta (Lite/RS485/WiFi)");
    Serial.println("Excel ID: 4");
}

void loop()
{
    // 1. Configure your Elementic pins here.
    // 2. Add your connectivity setup.
    // 3. Publish or react to device state changes.

    delay(1000);
}

Pin summary

GPIO Name Flags
2 Input I2 Analog in, Binary in, Interrupt
3 Input I3 Analog in, Binary in, Interrupt
4 Input I4 Analog in, Binary in, Interrupt
5 Input I5 Analog in, Binary in, Interrupt
6 Input I6 Analog in, Binary in, Interrupt
7 Input I7 Analog in, Binary in, Interrupt
8 Input I8 Analog in, Binary in, Interrupt
22 Relay 1 Digital out, Binary out
23 Relay 2 Digital out, Binary out
24 Relay 3 Digital out, Binary out
25 Relay 4 Digital out, Binary out