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Unanswered Questions

4,283 questions with no upvoted or accepted answers
-2 votes
1 answer
1k views

Weight sensor / load cell not working

I just got all my parts together that I needed for my project and put everything together like said here: https://web.archive.org/web/20140303140445/http://cerulean.dk/words/?page_id=42 but the serial ...
-3 votes
1 answer
250 views

SIM7600 MQTT CONNECTION TO shiftr.io broker

I am trying to use SIM7600 MQTT command to publish and subscribe to shiftr.io broker. I have not been able to get pass stage of connecting to broker. I use this AT+CMQTTCONNECT=0,"tcp://instance....
-3 votes
1 answer
2k views

Any limitation on array size in Arduino Mega 2560?

I am writing an Arduino code with 3 arrays. Two of those are double and other one is int. Further first two arrays have nearly 420 elements for each. Now I noticed that with more that 89 elements on ...
-3 votes
1 answer
1k views

OLED display wrong (using SPI )

I can't figure out where I doing wrong https://www.youtube.com/watch?v=35NqOANmgUE This is my question in videos The both of two connect the same pin (so the right display result is the correct ...
-3 votes
1 answer
89 views

Arduino uno not writing to file

I'd like the arduino to write to a file whenever an ajax call is made. The ajax works, but it doesn't write to the file. All other code inside the ajax handler does execute. void handle_ajax() { ...
-3 votes
1 answer
251 views

Can not find the download Zip button in the GitHub Page

I want to download a zip file for the following code from the GitHub. I am pretty new in the GitHub. Can anyone help me how to download the Zip folder for the following code from the GitHub library? I ...
-3 votes
1 answer
551 views

Arduino IDE : 'tansig' was not declared in this scope

I am working on a simple NN sketch, everything looks fine and also i have added #include math.h .but when i try to compile it gives an error i-e 'tansig' is not defined in this scope I am trying to ...
-4 votes
1 answer
61 views

Arduino : LCD / POT

how can I make the repetitions stop at 10 ? Also how can I get the lcd to reset when its off/low ? #include <LiquidCrystal.h> LiquidCrystal lcd(12,11,5,4,3,2); const int tiltSensor = 8; int ...

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