ESP-Now | ESP-Now Examples

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

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | ESP-Now Summary

ESP-Now is a C++ library typically used in Internet of Things (IoT) applications. ESP-Now has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

ESP-Now Examples

Support

Quality

Security

License

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Support

ESP-Now has a low active ecosystem.

It has 259 star(s) with 38 fork(s). There are 35 watchers for this library.

It had no major release in the last 6 months.

There are 11 open issues and 5 have been closed. On average issues are closed in 1 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of ESP-Now is current.

Quality

ESP-Now has 0 bugs and 0 code smells.

Security

ESP-Now has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

ESP-Now code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ESP-Now 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

ESP-Now releases are not available. You will need to build from source code and install.

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ESP-Now Key Features

No Key Features are available at this moment for ESP-Now.

ESP-Now Examples and Code Snippets

No Code Snippets are available at this moment for ESP-Now.

Community Discussions

Trending Discussions on ESP-Now

Arduino IDE does not recognize struct

Sending data over ESP_NOW

C Buffer pointer

What is "ESP_NOW_ROLE_MAX"?

Send data from NodeMcu(ESP266) to ESP32 using esp now?

QUESTION

Arduino IDE does not recognize struct

Asked 2022-Apr-01 at 03:00

I am trying to send 2 int variables from client to server using ESP-NOW. The full code of the client is:

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ANSWER

Answered 2022-Mar-31 at 19:18

I figured it out, the struct definition has to be inside a function, be it setup or any other. Thank you all for looking at this

Ok I thought I figured it out, but I just wrote another sketch and placed the struct ahead of all functions and it's working , so honestly I have no idea of what is going on, anybody else know the answer, or is this question so stupid that no one wants to comment? Which is fine with me, I am still a great neophyte at this, so if you can help, great, if not , thank you anyway, this is still a great resource for a newbie😅

Source https://stackoverflow.com/questions/71694911

QUESTION

Sending data over ESP_NOW

Asked 2021-May-24 at 13:22

I'm a total noob and just starting out with PlatformIO and Arduino/ESP32. I also want to say thanks in advance to any help I can get.

Plan:

I have 2 ESP32's talking over ESP_NOW, I just can't verify the data being sent in order to progress with my project. Basically, I have a Nextion display that sends specific info to an ESP32 (tested and working) and that ESP32 is then to send that information via ESP_NOW to the other ESP32 which will translate it into serial data to send to an Arduino Due and perform some tasks.

Problem:

The issue I have is that when I test, I see the data I think I am transmitting, but when I try to Serial.print said info, I get "0 0 0 0". I'm not sure that I am sending OR receiving the data properly. All I know is that when I press the button on the Nextion, I get a response on the ESP32 that is not connected.

Code:

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ANSWER

Answered 2021-May-24 at 13:22

I was able to resolve my issue. Below is the code that displayed the same information that was sent from the host and received by the slave ESP32.

Source https://stackoverflow.com/questions/67510547

QUESTION

C Buffer pointer

Asked 2021-Feb-05 at 11:03

Question

I'm currently working with ESP-NOW with the esp-idf. Below is a snippet from their espnow examples. I need some help in identifying what does this line means, but I'm not quite sure what to google. Can someone point me in the correct direction?

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ANSWER

Answered 2021-Feb-05 at 11:03

You've truncated the relevant part from the definition of struct example_espnow_send_param_t - the field buffer :)

Source https://stackoverflow.com/questions/66061238

QUESTION

What is "ESP_NOW_ROLE_MAX"?

Asked 2020-May-12 at 20:21

While trying out esp-now on a nodemcu v1.0 (esp-12e) I stumbled across ESP_NOW_ROLE_MAX while setting the role with esp_now_set_self_role(...) and wondered what this could be? Any idea? (I was using Platform.io, but this should also be the same in Arduino IDE)

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ANSWER

Answered 2020-May-12 at 20:21

ESP-NOW communication is a communication between peers (master and slave). It is the master device that governs the entire communication initiative and the slaves only respond to the master's request, if applicable.
There is a possibility that a device can simultaneously have the role of master and slave. This happens if the device is the master of one or more slaves and in turn is the slave of another master.

If a device has no role, it will be in idle state.

The table summarizes the four(five) possibilities, with their corresponding names and priority to the interface:

Source https://stackoverflow.com/questions/61759331

QUESTION

Send data from NodeMcu(ESP266) to ESP32 using esp now?

Asked 2020-Feb-23 at 09:26

I am trying to send some data from a Nodemcu(esp8266) to ESP32. I am trying to use espnow for that purpose, but I am really stuck, I cant merge the Master and Slave for both the boards, I find the codes to be far different I tried some modifications and I can send data from the Nodemcu but can't receive it on the ESP32. I am trying to send two analog values for a Gesture control car.

The master code or the controller code running on the Nodemcu is given below

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ANSWER

Answered 2020-Feb-23 at 09:26

I never use esp_now before so I didn't test it myself, but I think this has nothing to do with the library or esp32, it is just a minor mistake of c++ usage.

On your sendData() function of your esp8266, you did this:

Source https://stackoverflow.com/questions/60359581

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install ESP-Now

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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