Hey all, I recently go a Arduino Uno r4 wifi, you know how it is (first time btw). Ready to make some projects and guess it has WIFI! Isn't that cool... Didn't know I would be spending hours just trying to fix something. But the issue is that I CANNOT GET THIS THING too work with Arduino Cloud. I'…

I googled your question re how to use ota. Here is the answer. To make Over-the-Air (OTA) updates work on Arduino (specifically ESP32/ESP8266), you must first upload a sketch via USB that includes the ArduinoOTA library and your Wi-Fi credentials. Once initialized, the board appears as a network p…

And done [Screenshot 2026-02-20 at 18.22.13] So it's something in your environmrnt, I would check cable first then make sure all software is current.

I tried it with a different cable (lower quality because the cable I was currently using was high quality) and it didn't work and I did just figure out that all of this would be useless because I can't even use OTA updates (whole point of connecting to cloud) because Arduino makes you PAY. …

I showed you the screen prints of me just following on screen directions and it worked fine. You must be deviating from those instructions or have a faulty cabler or PC or board. There is a free plan, did you not know that? And if you want more an entire year is a bit less than $0.20 per day.

[image] airfighter828: can't even use OTA updates (whole point of connecting to cloud) You can do OTA without the Arduino Cloud.

Can you share an image of Arduino Cloud displaying you need to pay for it? If the board is not working, you might need to burn the bootloader. This helped me once.

Hi @ts_king528 . The Arduino Cloud IoT OTA uploads feature is only available when using the "Maker" or higher plans: https://cloud.arduino.cc/plans#:~:text=Over-the-air%20updates [image] So @airfighter828 is correct that you can't do OTA uploads if you are using the "Free" plan. Whether that is …

What do you mean and how do you do it (I would really want to do it)

@ts_king528 I mean the board hasn't even been connected yet, I just tried to use the ESP option and chose Wifi s3 but still says its not connected, but here you go: [Screenshot From 2026-02-22 12-45-31]

I have never used it, but start with the OTA example code in the board examples. [Screenshot 2026-02-22 at 15.28.11]

You said something about you don't have to use Arduino Cloud for OTA's. What do you mean? Also, I tried the OTA code and is the error I got: Please upgrade the firmware Attempting to connect to SSID: *** SSID: *** IP Address: **** signal strength (RSSI):-60 dBm download: Connection failure wi…

Arduino UNO R4 WIFI not connecting to Cloud

Development Tools Cloud IoT

ptillisch February 22, 2026, 9:29pm 29

OTA uploads to the UNO R4 WiFi board using Arduino IDE is not as simple as that. See this previous forum topic on the subject to learn how to do it:

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Arduino UNO R4 WIFI not connecting to Cloud

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