Questions tagged [arduino-uno-r4-wifi]
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6 questions
2
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1
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Why this program runs on an R3 but will not run on R4 Wifi?
I have been working on this program for a few weeks now and finally got it somewhere near finishing. It uploads and seems to do what I want it to do on a R3 board but will not run on my R4 Wifi board ...
- 39
1
vote
1
answer
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Is there a way to enable HTTPS directly on an Arduino UNO R4 Wi-Fi?
I am working on a project where I have set up an Arduino UNO R4 Wi-Fi as a web server. However, I would like to secure the communication by using HTTPS instead of HTTP for accessing the Arduino web ...
0
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1
answer
436
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Set SPI Mode on Arduino Uno R4
I am switching a code from Arduino Uno R3 to Arduino Uno R4 Wifi due to the limitation of RAM spaces on R3. I use a thermocouple shield and SD Card read/write shield with the project, which requires ...
- 3
2
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2
answers
671
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Smoke coming out of Arduino Uno R4 Minima
My Arduino Uno R4 Minima started smoking after connecting to a computer. I disconnected it and visually checked it and I saw this bubble as shown on this photo.
Can I recover my Uno from this to ...
- 53
2
votes
1
answer
101
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DHT11's data on MAX7219 reads 0
I want print data from a DHT11 (temperature and humidity) on a MAX7219 LED display but it only shows 0. Serial monitor, on the other hand, shows both humidity and temperature which means that my ...
- 53
2
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0
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396
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Uno R4 WiFi board is online but no OTA option for upload
I have followed these instructions to start using my new Uno R4 WiFi with the Arduino IoT Cloud. Everything works fine (even though sometimes the example screens do not exactly correspond with the ...
- 121