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Expand Up @@ -4,12 +4,12 @@ Thanks to its computing power, **Arduino Opta®** enables a wide range of real-t

It allows professionals to scale up automation projects while taking advantage of the open and widely known Arduino ecosystem.

Quickly put it to work, leveraging the many available software libraries. The onboard secure element ensures over-the-air firmware updates and remote control via the Arduino Cloud or third-party services.
Quickly put it to work, leveraging the many available software libraries. The onboard secure element ensures Over-The-Air firmware updates and remote control via the Arduino Cloud or third-party services.

Arduino Opta® is available in three variants:
* Arduino Opta® Lite: on-board Ethernet and USB-C® ports
* Arduino Opta® RS485: on-board Ethernet and USB-C® ports, plus RS485 connectivity
* Arduino Opta® WiFi: on-board Ethernet and USB-C® ports, plus RS485 and Wi-Fi/Bluetooth® Low Energy
* Arduino Opta® RS485: on-board Ethernet and USB-C® ports, plus RS-485 connectivity
* Arduino Opta® WiFi: on-board Ethernet and USB-C® ports, plus RS-485 and Wi-Fi®/Bluetooth® Low Energy

</FeatureDescription>

Expand All @@ -25,7 +25,7 @@ Arduino Opta® is available in three variants:

<Feature title="Connectivity" image="wifi-bluetooth">

Multiple choices are available for network connectivity, including USB, Ethernet, and Wi-Fi/BLE in addition to industry specific protocols such as RS485.
Multiple choices are available for network connectivity, including USB, Ethernet, and Wi-Fi®/Bluetooth® Low Energy in addition to industry specific protocols such as RS-485.

</Feature>

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Expand Up @@ -22,10 +22,10 @@ Connectivity:
TCP/IP: Yes
ModBus TCP: Yes
Bluetooth® Low Energy: Arduino Opta® WiFi
Wi-Fi: Arduino Opta® WiFi
Wi-Fi®: Arduino Opta® WiFi
Communication protocols:
RS485: Arduino Opta® RS485 & Arduino Opta® WiFi
Programmable Serial ports: RS485
RS-485: Arduino Opta® RS485 & Arduino Opta® WiFi
Programmable Serial ports: RS-485
Power:
Input voltage: 12-24 VDC
Memory:
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Expand Up @@ -63,7 +63,7 @@ If you want more insights on the Modbus communication protocol, take a look at [

### Setting Up the Arduino IDE

If you haven't already, head over [here](https://www.arduino.cc/en/software) and install the most recent version of the Arduino IDE along with the necessary device drivers for your computer. For additional details on Opta™, check out [getting started tutorial](/tutorials/opta/getting-started). Make sure you install the latest version of the [`ArduinoModbus`](https://www.arduino.cc/reference/en/libraries/arduinomodbus/) and the [ArduinoRS485](https://www.arduino.cc/reference/en/libraries/arduinors485/) libraries, as they will be used to implement the Modbus RTU communication protocol.
If you haven't already, head over [here](https://www.arduino.cc/en/software) and install the most recent version of the Arduino IDE along with the necessary device drivers for your computer. For additional details on Opta™, check out [getting started tutorial](/tutorials/opta/getting-started). Make sure you install the latest version of the [ArduinoModbus](https://www.arduino.cc/reference/en/libraries/arduinomodbus/) and the [ArduinoRS485](https://www.arduino.cc/reference/en/libraries/arduinors485/) libraries, as they will be used to implement the Modbus RTU communication protocol.

### Connecting the Opta™ Over RS-485

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