48
votes
Accepted
Warning when verifying sketch with VS code
Thanks to @Majenko I looked some place new:
documented in the arduino plugin of VS Code Arduino Extension there is an option to set an output directory.
Note though that according to this it should ...
- 1,031
34
votes
Warning when verifying sketch with VS code
To clarify the answer, for those new in arduino world +StudioCode (source: https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.vscode-arduino )
The following settings are as per sketch ...
- 481
8
votes
Accepted
How can I have code in a project that won't compile for Arduino?
I would use conditional compilation, like this:
#ifndef(ARDUINO)
// Non-Arduino code.
#endif
- 45.2k
8
votes
Accepted
Using Arduino as a standalone compiler
First of all: The Arduino IDE brings its own GCC compiler. It is a version, that can compile for the AVR platform (don't know, if the standard version is capable of that).
When you activate verbose ...
- 16.6k
7
votes
Program size optimization
Using the Serial object pulls HardwareSerial0.o into your program
linkage. This file defines, among other things, the ISRs (interrupt
service routines) associated with the serial port. ISRs are ...
- 45.2k
6
votes
How to compile, upload and monitor via the Linux command line?
Official CLI tool
The arduino team is developing a cli client
https://github.com/arduino/arduino-cli
Announcement: https://blog.arduino.cc/2018/08/24/announcing-the-arduino-command-line-interface-...
- 161
5
votes
Accepted
Project wont compile when I place functions below function calls
You need to declare your function before you use it. So either the whole function body needs to be before the usage, or you must add a function prototype declaration.
void myfunction();
myfunction()...
- 176
4
votes
Accepted
Conditional compilation depending on sizeof(double)
The double data type is almost universally 8-bytes long, so you could
simply
#if !__AVR__
# define HAS_64_BIT_DOUBLE
#endif
Gcc provides a more specific macro though: __SIZEOF_DOUBLE__, which
has the ...
- 45.2k
4
votes
Random "Compilation error: Error: 13 INTERNAL: exit status 1". No clue how to resolve or even what causes this error
The problem with that error message is that you are only reading the very last line. That line says "Oops, it didn't compile". The actual error message occurs before that. You need to read ...
- 106k
4
votes
Accepted
How to cut down size of imported DigiKeyboard library
With input from @EdgarBonet, I looked into the functions used and it turned out that the String() function, I used once in my code, takes up about 3kB of space in the compiled program.
I ended up ...
- 105
4
votes
Break a big file into smaller files
This is not the right way to split a big .ino file. You should instead
think in terms of functional units, i.e. software “modules” that address
specific concerns. For example, if a subset of your code ...
- 45.2k
4
votes
How to compile without adding the bootloader?
Seeing .bootloader section in size output doesn't mean it's really present. It just means the sum of all three is 4152 bytes.
You can check the hex file if it contains large block of data at the ...
- 4,907
3
votes
Accepted
How to upload already compiled code when no changes were made?
You can upload hex file to your board from command line without Arduino IDE.
To get the hex file, use in Arduino IDE in menu the command "Export compiled binary". It will save the hex file next to ...
- 18.3k
3
votes
Accepted
What is the difference between Tools > Board settings in Arduino IDE? ex: ESP32-Dev v. Huzzah32
For ESP32 boards the differences are very minor. In general an ESP32 is an ESP32. The only changes are name to pin mappings, and how to upload code.
There are a couple of different ESP32 modules, but ...
- 106k
3
votes
How to change Arduino Nano MODEL_ID
Finally find the solution =)
You don't have to change the ID vendor or ID product: it is possible to attribute a permanent name with devpath (where the device is plugged)
The only downside of using ...
3
votes
Accepted
How to install the application + its configuration to many devices of the same kind? (ESP32)
If you don't want to include the individual config data in the sketch for each location there are mainly two possibilities to handle that:
As consumer IOT devices often do you can write your code to ...
- 16.6k
3
votes
Break a big file into smaller files
If you split the file into multiple .ino files, then the compiler will concatenate them all into one long .ino file before it compiles. It will put the one that matches the name of the project first ...
- 3,391
3
votes
Accepted
How to find out all #define used by arduino-cli in compile?
I am not familiar with arduino-cli. If you can manage to find the g++
command line it uses for compiling your sketch, then you can get the
list you are looking for by using a modified version of that ...
- 45.2k
3
votes
The Arduino copy of example code for tone() function produces a compile error: 'tone' is not declared in this scope. How can I fix this?
In short, they just never implemented tone() in the Due/SAM core.
So you're not going to get the normal tone() function working.
The tone.h header is empty.
They probably should done any number of ...
- 5,739
2
votes
How to compile, upload and monitor via the Linux command line?
If you want a fully compatible solution for your arduino project (yes, you can share your project with other people that use just plain Arduino IDE) you need to check amake a tool to simplify the cli ...
2
votes
Accepted
Changing type of one variable dramatically changes compile size
Without being able to proof it (since I don't have your libraries and you gave only a small part of the sketch), I think this is what happens:
user3629249 is half right. If you change c to type ...
- 16.6k
2
votes
Accepted
Cannot load anything from library
This was a problem with using your OneDrive folder.
duskwuff wrote:
This is a known incompatibility between the Arduino IDE and Microsoft OneDrive. A fix should be available soon; in the meantime, ...
- 3,218
2
votes
Accepted
'dynamic_cast' not permitted with -fno-rtti
It seems avr-gcc version 4.9.2 that is used by the Arduino IDE has been compiled without RTTI support. It defaults to -fno-rtti, and if you try turning it on with -frtti you just get other horrible ...
- 106k
2
votes
Accepted
How do I make Arduino IDE use a specific version of GCC in Debian?
As Majenko pointed out, I should have used a tarball from the official site instead of the repositories. Which makes me wonder why that package wasn't deprecated or something...
- 131
2
votes
How to upload already compiled code when no changes were made?
This is what I have done. In the arduino IDE settings panel, turn on the "Show verbose output during compile and upload". This way whenever you are doing verify and upload you can see all ...
- 121
2
votes
Accepted
Multiple definition error when linking firmware.elf
Rule #1:
Header file extension is ".h". Files with ".cpp" are ususally compiled as separate compilation units into the object file. If you have any function definition (= declaration + implementation)...
- 4,907
2
votes
Accepted
Compile error in Ubuntu 18.04
This is likely a permission problem. The user likely does not have permission to read from and write to the port created when plugging in the Arduino. This can be temporally fixed using the ...
- 7,513
2
votes
Accepted
How to compile, upload and monitor via the Linux command line?
A great way to compile for and flash an Arduino device from the command line and integrate with Vim is to use PlatformIO Core (CLI).
Since it's written in Python it's easy to install even when it's ...
- 531
2
votes
Using Arduino as a standalone compiler
This is not an answer that fully meets what you ask, but it is too big for a comment, and it helps you somewhat, at least using your Sublime editor.
What annoys me most in the Arduino IDE is the lack ...
- 13k
2
votes
What should I do with stackOverflow in compile error?
Sketch uses 444 bytes (1%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
This ...
- 699
Only top scored, non community-wiki answers of a minimum length are eligible