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Copy file name to clipboardExpand all lines: content/Arduino Cloud/Arduino IoT Cloud/Add-a-device-to-Arduino-Cloud.md
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## Add an Arduino board via serial (USB)
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## Add an Arduino board via serial (USB) {#add-an-arduino-board-via-serial-usb}
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All Arduino boards supported by Arduino Cloud can be added via USB from a computer running the [Arduino Cloud Agent](https://support.arduino.cc/hc/en-us/articles/360014869820-Install-the-Arduino-Cloud-Agent).
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## Add an Arduino board via Bluetooth
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You can add supported devices via Bluetooth if they are running the preflashed [provisioning sketch](https://docs.arduino.cc/arduino-cloud/hardware/device-provisioning/). When this sketch is active, the onboard LED blinks in a heartbeat pattern (one long pulse followed by two short pulses). If your board is running a different sketch, [add it via USB instead](add-an-arduino-board-via-serial-usb).
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You can add supported devices via Bluetooth if they are running the preflashed [provisioning sketch](https://docs.arduino.cc/arduino-cloud/hardware/device-provisioning/). When this sketch is active, the onboard LED blinks in a heartbeat pattern (one long pulse followed by two short pulses). If your board is running a different sketch, [add it via USB instead](#add-an-arduino-board-via-serial-usb).
Copy file name to clipboardExpand all lines: content/Arduino Cloud/Arduino IoT Cloud/If-your-device-is-offline-in-Arduino-Cloud.md
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In this article:
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-[Check power and restart](#check-power-and-restart)
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-[Verify and reupload the Thing sketch](#verify-and-reupload-the-thing-sketch)
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-[Verify network credentials and reupload the Thing sketch](#verify-network-credentials-and-reupload-the-thing-sketch)
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-[Check your network settings](#check-your-network-settings)
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-[Check the serial output](#verify-and-reupload-the-thing-sketch)
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-[Check the serial output](#check-the-serial-output)
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-[Delete the device](#delete-the-device)
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1. Select your device in the editor.
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1. Open the Serial Monitor.
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1. Read the output to better understand what happens as your device tries to connect to Arduino Cloud.
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1. If your device is not sending any serial output, try pressing the reset button on your device to restart the sketch. If you still don't see any output, the device may not be running the Cloud sketch. See [Verify and reupload the Thing sketch](#verify-and-reupload-the-thing-sketch).
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1. If your device is not sending any serial output, try pressing the reset button on your device to restart the sketch. If you still don't see any output, the device may not be running the Cloud sketch. In that case, [verify your network credentials and reupload the Thing sketch](#verify-network-credentials-and-reupload-the-thing-sketch).
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Copy file name to clipboardExpand all lines: content/Hardware Support/Generic/About-LoRa-and-LoRaWAN.md
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id: 4402394268562
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---
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In this article:
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<!-- TOC -->
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-[What is LoRa and LoRaWAN?](#what-is-lora-and-lorawan)
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-[Suitable use cases](#suitable-use-cases)
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-[Arduino devices with LoRa connectivity](#arduino-devices-with-lora-connectivity)
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-[Further reading](#further-reading)
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<!-- /TOC -->
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---
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## What is LoRa and LoRaWAN?
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***LoRa<sup>®</sup>** is a radio modulation technique for the physical layer that can be used for long-range, low-power communication.
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***LoRaWAN<sup>®</sup>** is a communication protocol and network architecture that functions on LoRa.
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-**LoRa<sup>®</sup>** is a radio modulation technique for the physical layer that can be used for long-range, low-power communication.
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-**LoRaWAN<sup>®</sup>** is a communication protocol and network architecture that functions on LoRa.
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LoRa and LoRaWAN are particularly useful for environments with limited connectivity and long distances between the main microcontroller and the components linked to it.
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LoRa and LoRaWAN are suitable for:
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***Long range:** Up to 3 miles (4.8 km) in urban areas and up to 10 miles (16 km) or more in rural areas with line of sight.
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***Low power:** LoRa transceivers can run on small, inexpensive batteries for several years.
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***Low cost:** Lightweight protocols reduce complexity in hardware design and lower device costs. Its range and network topology reduce expensive infrastructure requirements, and the use of license-free or licensed bands reduce network costs.
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***Coverage anywhere:** Use exiting open-source networks or set up your own gateways.
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***Large-scale deployments:** A gateway can support thousands of nodes, depending on the uplink frequency.
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-**Long range:** Up to 3 miles (4.8 km) in urban areas and up to 10 miles (16 km) or more in rural areas with line of sight.
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.**Low power:** LoRa transceivers can run on small, inexpensive batteries for several years.
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-**Low cost:** Lightweight protocols reduce complexity in hardware design and lower device costs. Its range and network topology reduce expensive infrastructure requirements, and the use of license-free or licensed bands reduce network costs.
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-**Coverage anywhere:** Use exiting open-source networks or set up your own gateways.
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-**Large-scale deployments:** A gateway can support thousands of nodes, depending on the uplink frequency.
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Lora and LoRaWAN are generally **not** suitable for:
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***High-bandwidth applications:** The bandwidth is limited both by data rate (up to 27 kbit/s) and the network duty cycle[^1].
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***Real-time applications:** Any application that is sensitive to latency
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-**High-bandwidth applications:** The bandwidth is limited both by data rate (up to 27 kbit/s) and the network duty cycle[^1].
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-**Real-time applications:** Any application that is sensitive to latency
*[WisGate Edge Lite 2](https://store.arduino.cc/products/wisgate-edge-lite2)
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For more information, see [Arduino devices with LoRaWAN® connectivity](https://support.arduino.cc/hc/en-us/articles/4403398854418-Arduino-devices-with-LoRaWAN-connectivity).
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See [Arduino devices with LoRaWAN® connectivity](https://support.arduino.cc/hc/en-us/articles/4403398854418-Arduino-devices-with-LoRaWAN-connectivity).
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---
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## Further reading
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*[LoRaWAN® (The Things Network)](https://www.thethingsnetwork.org/docs/lorawan/)
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-[LoRaWAN® (The Things Network)](https://www.thethingsnetwork.org/docs/lorawan/)
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