Arduino IDE + ESP32 | Communication between ESP32 (Two or more ESP32) with ESP-NOW Protocol

Arduino IDE + ESP32 | Communication between ESP32 (Two or more ESP32) with ESP-NOW Protocol. In this project video I use Arduino IDE 1.8.9 , Notepad++ V7.7.1 , LEDs, Push Button and ESP32 WROOM-32 Development Board.

The code file is saved in the .rar file format. I created a .rar file using Winrar V5.50, so to extract it, make sure you use the same version of Winrar that I use or the latest version or use the winrar extractor online.

Sorry if my English is confusing, I use an online translator.

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Reference :

and from several other sources.
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[chsmartlive]

Your Knowledge, Help me for started in ESP NOW alot Thank you... ขอบคุณครับ from Thailand ...

[LEMT_]

Eres un buen aporte para la sociedad. Muchas gracias.

[darckael]

justo lo que necesitaba, gracias por el aporte.

[MrDonrecardo]

Hi, I loaded the 1 way comms part of the program and set the sender to the MAC Address of the receiver but I get ...
19:15:35.122 -> E (112) ESPNOW: Peer Interface is invalid
19:15:35.122 -> Failed to add Peer

I have tried another ESP-NOW program it was in arduino examples /esp32/esp-now/basic/ I loaded slave to one
esp32 and master to the other. set both to channel 1 and its working fine so I guess my ESP moduals are working ok

so why is it not working with yours ? any ideas

Don

[abhijithsuresh]

What difference should i make in this code to work with esp8266 ?? Please respond

[lucianodipaolo]

bravo, molto interessante questo vidotutorial

[MadocheAnagonou]

how to know the problem of connection according to message :"Error sending the data"

[GeremieKINKPOESSI]

On peut avoir le code pour la connexion des deux ESP32 s'il vous plaît ?

[movienino]

Hello,
I get the following error

E (177) psram: PSRAM ID read error:
E (309) ESPNOW: Peer interface is invalid

(PSRAM is enabled in Arduino IDE)

[lostboy_]

how to send "HELLO" message from one WG222 WIFI module to another on Arduino IDE?

[muhammadmudassir]

Sir I do same but my led is flickering and do malfunctioning while execution

[andrivie]

chaneel favorit ane ini ....chat di ig lancar thanks bang, ,jadi termotivasi buat ane belajar

[apostolosn]

Hi, I loaded the 1 way comms part of the program and set the sender to the MAC Address of the receiver but I get ...
E(112) ESPNOW: Peer Interface is invalid
Failed to add Peer.
What can be the problem? I know that my ESP32 boards work because I tried them with the demo sketches include with the ESP32 examples and ther worked OK.

[Leilektsoglou]

If we don't have view on the other side (receiver ESP32 board), how can we be sure that the led of the other side in deed has light up?

[LEMT_]

¡Atención! Deben revisar la nueva firma de devolución de la llamada, se ha actualizado.

[mouseminer]

HI, I AM GETTING THIS ERROR WHILE COMPILING THE RECIVER ESP Compilation error: invalid conversion from 'void (*)(const uint8_t*, const uint8_t*, int)' {aka 'void (*)(const unsigned char*, const unsigned char*, int)'} to 'esp_now_recv_cb_t' {aka 'void (*)(const esp_now_recv_info*, const

[VVLGANESHK]

Can I make quest like controllers (2 VR controllers) with this esp NOW modules.

Sorry I am newbie to electronics

[youssefyasser]

Can I do this with esp node mcu 32s and arduino mega with wifif module

[rafaeladrianmartinez]

Hello, I would like to know that I have to change the code so that only when the button is pressed the LED turns on and when the button is released the LED turns off. Thanks for the video, I look forward to your response!

[kamalkamel]

nice!!!
it's work in esp32 and esp8266 or just esp32 ?