RF24Network | Network Layer for nRF24L01 Radios | Navigation library

by maniacbug C++ Version: Current License: No License

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kandi X-RAY | RF24Network Summary

RF24Network is a C++ library typically used in User Interface, Navigation applications. RF24Network has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Network Layer for nRF24L01(+) Radios

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Quality

Security

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Support

RF24Network has a low active ecosystem.

It has 273 star(s) with 132 fork(s). There are 67 watchers for this library.

It had no major release in the last 6 months.

There are 18 open issues and 5 have been closed. On average issues are closed in 774 days. There are 6 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of RF24Network is current.

Quality

RF24Network has no bugs reported.

Security

RF24Network has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

RF24Network does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

RF24Network releases are not available. You will need to build from source code and install.

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RF24Network Key Features

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RF24Network Examples and Code Snippets

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Community Discussions

Trending Discussions on RF24Network

Is void setup() code wiped out when deep sleep is used in esp32

C++: segmentation fault in memset () when returning from procedure

Optimize library Arduino : undefined reference

QUESTION

Is void setup() code wiped out when deep sleep is used in esp32

Asked 2019-Jun-26 at 07:49

I'm doing wireless sensor node using esp32 (slave) and rf24l01 module. My next step is to put my slave in sleep mode (maybe deep sleep). Can I use deep sleep for my project?

They said

everything stored in that memory is wiped out and cannot be accessed.

So is all my void setup() code wiped out? Or just my pack0.temp, humid, soil is wiped out?

My code is attached below

...

ANSWER

Answered 2019-Jun-25 at 15:49

When the ESP32 enters deep sleep, it turns off the processor that's running your code. The contents of memory and the current state of the processor are lost. It costs power to maintain the contents of its memory and the CPU state, and the point of deep sleep is to save as much power as possible, so it stops powering these things.

So when it restarts out of deep sleep it's as if it just powered up. Your setup() function will run again and will need to do any initialization again.

There are a couple of ways to preserve state across sleep cycles.

Obviously you can store data in flash memory using EEPROM or SPIFFS. Writing to flash is slow and costs a lot of power, so this isn't great if you're running off a battery.

You can also store data in the static RAM that's part of the real-time-clock (RTC). This RAM is built into the ESP32 and is maintained during deep sleep. Its contents will be lost or cleared when the ESP32 loses power or is flashed.

You can declare a variable to live in the RTC RAM using RTC_DATA_ATTR. For instance:

Source https://stackoverflow.com/questions/56756589

QUESTION

C++: segmentation fault in memset () when returning from procedure

Asked 2017-Feb-09 at 12:05

Could anyone help me with my C++ program? I'm experiencing a segmentation fault and I can't find the problem. I'm writing a program for my raspberry pi that communicates with an nRF24L01 sensor network and sends data to a dashboard (Dashing) hosted on my RPi using CURL.

I ran my program with a debugger (gdb), and this is the backtrace I got: (see below for the full source code)

...

ANSWER

Answered 2017-Feb-09 at 12:05

The offending code was this block here (in sendDataToDashBoard):

Source https://stackoverflow.com/questions/42107936

QUESTION

Optimize library Arduino : undefined reference

Asked 2017-Jan-25 at 19:17

The development for embedded system impose an other way to code. In the goal to minimize size of my library named RF24Wave, I would adapt the structure of my main class. The idea is to declare some functions only with the presence of certain #define during the inclusion of my library in main program.

The popular library, like MySensor use this way to minimize memory footprint.

So, I have two files for my library :

RF24Wave.h : header file which contain function declarations

...

ANSWER

Answered 2017-Jan-25 at 15:23

If you add your library in the arduino IDE as it is described here it just consists in linking another project to your library functions. It's not a static library (see static and dynamic libraries). Then I think it's not necessary to worry about its size since the compiler will embed your library functions only if you use them.

Try opening any example (AnalogReadSerial), compile it. Then Sketch->Add a library->SPI. Compile it again, the size does not change. Try to call SPI.begin() in the setup function, the size increases. Add a call to SPI.setBitOrder(MSBFIRST);, the size increases again. Add another call to SPI.setBitOrder(MSBFIRST);, the size increases again, but not by the same amount since it contains only one setBitOrder definition and two calls to the setBitOrder function.

That's not exactly true for all libraries since some constructs could force the compiler to embed some code or allocate memory even if the variable is not used (see for instance volatile variables).

So regarding your size issue, you'd probably only need to use one #define MASTER, write the master code in setup and loop functions surrounded by #ifdef MASTER and the slave code surrounded by #else...#endif. The compiler will include the function definitions that both master or slave use.

Source https://stackoverflow.com/questions/41853344

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Vulnerabilities

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Install RF24Network

You can download it from GitHub.

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