ESP NOW: Espressif's Wireless-Communication Protocol

[@georgea.3562]

Used ESP-NOW for my bachelor thesis and now doing related research on a PhD level. Thank you Espressif.

[@EspressifSystems]

Many thanks for sharing this piece of information, George, and for continuously supporting Espressif Systems. Do get in touch with our engineers if you ever have any questions, either via esp32.com / github.com/espressif or via our technical support team: www.espressif.com/en/contact-us/technical-inquiries. Good luck with your PhD and let us know about the specific project you've been worked on, when it's over!

[@UserName-cb6jz]

​@@EspressifSystems The number one thing we would all like to see is a GREATLY reduced power consumption, for a much longer battery life. Second thing would be a better and less noisy ADC and its independence from WiFi usage (not losing pins if WiFi is on). Third thing would be PWM outputs going up to 100kHz with multi-phase capability and independent of code (hardware based for reliable running of multi-phase PWM converters).

[@bobby9568]

Its not like you became a super saiyan now that you're doing PhD. You're still a PhD student, seen so many dumb PhD students unfortunately. Copying papers and changing a screw doesn't make you smart, sorry.

[@nabeelkirmani]

This is very impressive. Espressif is way ahead in the game than its competitors. Please guide us on how to use it alongside Wi-Fi in Arduino Framework.

[@WistrelChianti]

Yup, some general guidance on best practice around use to the two in tandem would be handy. Case in point, I'd be interested in how best to manage a device that primarily uses wifi, but enable it to detect and talk to other (foreign to the wifi network) devices via ESP NOW, when they come near.

[@iliasalaur]

I'm a big fan of Espressif, and I am happy to know, that it is growing and developing really cool stuff

[@Dagor]

ESP-NOW is amazing. I’m building a quadruped robot with 12 degrees of freedom and each actuator is ESP32 based and communicated through ESP-NOW.

[@arifindobson]

Awesome, would love to see it working 👍✨

[@Dagor]

@@arifindobson In my channel I have the progress. Full robot video coming soon.

[@proto_hexagon5649]

how you use the ESP-NOW protocol? its working with already ESP32 on market or need buy specific one?

[@wolframsmith5]

impressive mate, hope to see your project working soon

[@Dagor]

@@proto_hexagon5649 Any regular ESP32 devkit will work

[@chrenz3803]

Nice to see that it’s still alive. Used it in an industrial project and works flawlessly.

[@xamashee]

ESPs even better each day!

[@tlamont941]

WOW, Esp-Now has come a long way, I have been using it for years as part of my home automation. I designed my own 6 and 9 button remote controlls and door sensors. I works fast and great battery life.

[@prashanthprashanth7418]

@Tony Lamont can u help me. I am also like to do home automation like you

[@prashanthprashanth7418]

How can I contact you

[@donnysdp]

Such a brilliant from Espressif. Btw I'm developing the ESP-Now protocol on my Final Test of College to Implement a Body-to-Body Network using ESP-Now to send several data from human's WBAN (3 sensors based on qSOFA Score on a Medical Terms) to the ESP32 through a Mesh Network. Wish me luck guys! And I hope ESP-Now can manage my idea on my Final Test with zero problems!

[@EspressifSystems]

Many thanks for your support and best of luck to you for your ESP-based College project! Let us know when it's ready 😀

[@donnysdp]

@@EspressifSystems thx a lot!!

[@bitosdelaplaya]

Fantastic !!!!!!!!!!! I have plenty of esp module (32 and 8266). And one of my project rely on rssi and distance. I'm going to study that in two week. Espressif clearly think like makers !!

[@efiron]

Отличный протокол. Подключается мгновенно, по MAC адресу можно вычислять, кто отправил пакет и отправить ответ. С трёх точек получал пакеты параллельно со скоростью тысячи пакетов с каждого устройства и это не предел. Работает стабильно. Не требует маршрутизатора. В общем одни плюсы. Можно организовать mesh-сеть. Рекомендую.

[@pr200sd]

В этом режиме обычный вариант подключения по IP с возможностью запустить web server недоступен, я правильно понимаю?

[@efiron]

@@pr200sd Нет. может работать параллельно с Wi-Fi протоколом. Перед использованием я инициализирую контроллер в режиме клиента WiFi: WiFi.mode(WIFI_STA); И далее инциализирую ESP NOW: esp_now_init() Это лишь протокол а не физический канал, и идет работа с получаемыми данными заложенными функциями ESP. Если придут данные протокола Wi-Fi - они будут обработаны также функцией ESP. По сути все данные в диапазоне частот 2,4 Ггц анализируются контроллером, и если пакет предназначен конкретному устройству, то оно принимает пакет, отправляет ответ о принятом пакете, выделяет данные из него и отдает их определенной функции. Тут просто другая функция обработки данных, поэтому все происходит быстрее. Если бы у нас была возможность работы напрямую с радиоканалом ESP, то мы бы смогли создать собственный протокол связи и работать по нему.

[@pr200sd]

@@efiron О, интересно, спасибо, буду тестировать,👍

[@AllTheNamesWereInUse]

Simply amazing, glad I invested in so many of these devices! :)

[@sosuskeaiezen9637]

I love the way you present the information. Keep up the good work!!!

[@EspressifSystems]

Thank you so much for your support!

[@arifindobson]

Oh my gosh, this is beyond amazing and awesome guys, thank you soo much for working on this 👍👍👍✨

[@JaromirKopp]

ESP-NOW has 5 years or more, ;-) I used this with my systems for years - works great. Now is simpler to use and has plenty of use ready function. Before I must write this myself

[@arifindobson]

@@JaromirKopp awesome, that's what so great about esp, not just the amazing hardware but software support as well ✨

[@elmovandermerwe]

I am a big fan of what Espressif is doing.

[@grisvianbrudlie6093]

can you please provide some example code for the binding process of two or more device. I think holding a button to bind devices are really convenient, rather than finding each MAC address and updating them via code....overall, thanks, great vid

[@bolivianracing]

This is game changer! I wonder if the pairing button can be avoided, so there's no need to pair the devices manually after a power loss..

[@tablatronix]

Love it, now I just need an arduino espnow bridge to mqtt, can espnow run alongside wifi ?

[@pablogonzalezrobles4429]

And an official 4g module for esp32 so we can setup the perfect iot solution

[@EspressifSystems]

ESP-NOW co-exists with Wi-Fi and Bluetooth LE.

[@ArnaudMEURET]

0:46 !

[@manukalias]

I am a Espressif Fan from India 😍😍

[@giangem37]

Thanks for good device, it took my embedded system connect to the world.

[@luftstolle]

Weird how a communication protocol is tied to buttons! Anyway, where can I buy those light bulbs and the remote control? I really like the idea of building my own network built on ESP NOW instead of Zigbee, as Zigbee doesn't really do what I want (e.g. I would prefer the remote control to first of all try to talk to the hub, and if that fails, talk to the light bulbs directly, and I also have a problem that my Zigbee hubs (several different types) do not properly indicate that a device is unreachable).

[@chung_myung.]

I believe ESP-NOW is the future.

[@MumPyro]

The specs show that ESP-NOW only supports up to 20 devices connected unencrypted but this video is showing way more than that. At 4:30 in the video it says 100's of devices. What's the trick to get all of them to work together with a single controller?

[@FyJonas]

They are probably using a mesh network topology, possibly something like Esp-mesh but using esp now?

[@bobby9568]

@Espressif Systems, have you fixed the ESP ADC problem with the newer esp's?

[@austin-johnluckhoff2094]

Do anyone know where one can find the controller in this video in Usa

[@Recipelovers-f2l]

2 days back , i bought a new esp32 DEVKITV1 when i try to upload any code it shows Connecting...................................... A fatal error occurred: Failed to connect to Espressif device: Invalid head of packet (0x00): Possible serial noise or corruption. So , i tried all troubleshooting steps. Still the same error 😢 Please 🙏 tell me how to solve the issue Thank you.

[@thenextproblem8001]

Hi , is there a way to reduce espnow coverage area? Not for exactly but approximately. Let's say we don't want to communicate over 10meters?

[@YigalBZ]

Can you please show how can a firmware of ESP32 can be remotely updated? I develop SW with VSCODE & PlatformIO. I would love the ability to upgrade firmware remotely.. today I use the USB cable.

[@TechnoAutomation]

Running espnow on esp32 with continuous data transfer heating esp board. Are there any specific requirements to throttle up data sending rate for optimum heating??

[@swatcat7928]

Great... soo do you have an arduino library and example?

[@jaromanda]

some ESP-NOW functionality exists in the arduino esp8266/32 frameworks esp32, it's in libraries/ESP32/examples/ESPNow

[@salmarita219]

My mind is blown... this is sooooo great! (Astera Lamps should really get some of these features.)

[@ricardo-rector]

Where can i find that espnow debugger board?.

[@asiacuisine4869]

How does this compare to Zigbee??

[@YigalBZ]

Is it possible to create communication with ESP-NOW between Windoes/Linux machine and ESP32 device?

[@KartihkCg80]

where i can find espnow library that supports esp8266

[@wilesselaar5742]

Very nice, Where to get that nice white key-pad?

[@iliasalaur]

Waiting for esp8266 support :) And it would be nice to make an adapter (pattern) for this library, with Arduino-style functions, it will help with integrating the library in existing Arduino projects

[@EspressifSystems]

Thanks for your feedback. Have passed it on to our team of engineers working on this project. You can always get in touch with them yourself, too, through the following links: github.com/espressif/esp-now/issues & www.espressif.com/en/contact-us/technical-inquiries/other-technical-issues & www.espressif.com/en/contact-us/comments-and-suggestions

[@iliasalaur]

@@EspressifSystems thanks, it would be nice if I could get engaged in helping the engineers in this masterpiece ;)

[@RomanLutHax]

ESP-NOW works fine on esp8266 for a long time already. Communication between ESP8266 and ESP32 is possible.

[@ZsomborZsombibi]

That was an informative video.

[@hfe1833]

I'm impressed with this protocol defies others but I need to buy original or authentic board from your company please give some link

[@EspressifSystems]

Please contact our customer support team via the following link: www.espressif.com/sales

[@mouaadhyaichi842]

I have a project. I want to pass the value of a temperature sensor from one nodemcu esp8266 to another, passing by nodemcu esp8266 using ESP-NOW protocol

[@EspressifSystems]

Great! If you have any questions, you can ask them via this link: www.espressif.com/en/contact-us/technical-inquiries/other-technical-issues Then, our technical support team will try and help you.

[@ML-sr2ep]

Is ESP-NOW expected to work outdoors in the rain?

[@ishdemon_]

There is no documentation about device provisioning, OTA, etc all these new features.. Is it coming or planned?

[@EspressifSystems]

More documentation is coming up a bit later!

[@WistrelChianti]

The examples here all seem to demo specific roles (a clicker as sender and bulb as receiver). Any guidance on how best to handle a scenario where for any given set of devices, it is undefined which is the "master" so to speak. i.e. how best for a set of ESP NOW enabled devices to come together, detect and figure out how to talk to each other?

[@EspressifSystems]

For all your technical questions, please raise a "new issue" here: github.com/espressif/esp-now/issues You will then get answers from our engineers directly.

[@Mr_ToR]

When ESP-Home supports this, I'll use it.

[@parabolixlight]

Looks absolutely amazing. Any idea how to set this up in the Arduino IDE?

[@EspressifSystems]

Thanks! For all your technical enquiries, please contact our technical support team via the following link: www.espressif.com/en/contact-us/technical-inquiries/other-technical-issues

[@ganeshulapushpalalitha2622]

In ESP8266...why 8266? Is there any specific reason for 8266

[@DuneKraftwerk]

Very impressive indeed. Where can we get the ESP-NOW wireless debugging module you shown in the video ?

[@EspressifSystems]

Please get in touch with our customer support team via the following link: www.espressif.com/en/contact-us/sales-questions They'll be happy to help you.

[@wilesselaar5742]

Very nice, where can you get that nice white keypad?

[@EspressifSystems]

Please get in touch with our customer support team via the following link. They'll be more than happy to help you: www.espressif.com/sales

[@rinikaravinthv8490]

Is it possible to create a network without router? Basically one of the ESP device needs to act as AP and rest should make a mesh out of it. The mobile will then connect via the AP and control the devices. Is it possible?

[@EspressifSystems]

For all your technical questions, please raise a "new issue" here: github.com/espressif/esp-now/issues

[@natezimmer4489]

I'd be really great(and maybe you already have this?) if you could combine ESP-NOW with a sensor oriented WiFi silicon. E.g. a ESP chipset that can be powered by a CR2032 that can burst out ESP-NOW packets. Most of your current silicon can't seem to do this because it doesn't seem to support simple ultra fast wakeup & sleep while persisting memory. Espressif could be one of the few if any vendors that can do sensors on WiFi effectively. You could bridge the gap of ultra low power & high throughput with a single wireless protocol.

[@natezimmer4489]

E.g. many BLE/ZB chipset can wakeup & transmit a packet on the order of 1ms-3ms and then jump into ~1-5uA sleep while persisting ram. Tx/Rx currents are ~50mA with a MCU current of around ~1-5mA

[@EspressifSystems]

@@natezimmer4489 to get answers to the questions you have, from an Espressif engineer, please raise a "new issue" here: github.com/espressif/esp-now/issues

[@EspressifSystems]

To get answers to the questions you have, from an Espressif engineer, please raise a "new issue" here: github.com/espressif/esp-now/issues

[@Percyjackson183]

How to connect 2 esp32 modules together

[@brayanalmonte4758]

Wow this is insane!

[@YigalBZ]

Is it possible for a master ESP-NOW device to send a message to "all nearby" slaves? and they will answer without prior knowledge of their MAC addresses?

[@LucidFX.]

hey guys, i am liking what i am seeing and on other channels. I am looking for some sort of tutorial where i can use on my projects. I have 7 ESP32s, i have a servo on each. i need to send a command from the 1 master to the 6 slaves, i.e. button X HIGH/ Y LOW all services to position 1 - normally 0 Degrees. Button X LOW/Y HIGH - move all servos to position 2 NOT all the same degrees. and all switches low move to position 1, 0 degrees, as well. i have searched and nothing - if you could point me in the right direction.

[@xabikiqwe]

Alternative for ZigBee?

[@marcus3d]

Reliability? What happens when a packet is lost?

[@Un_Pour_Tous]

Innovation

[@poorman-trending]

What is a rooter?

[@rusticagenerica]

How can it know the distance?

[@Versette]

It doesn't really know the distance, it's not radar. It just assumes it based on signal strength.

[@OnurDinler]

thank you for sharing..

[@sagarjaiswal7035]

OTA with ESP-Now? That's awesome but there are no examples for OTA with ESP-NOW, and there are no examples for grouping with ESP-NOW, the documentation is lacking!

[@EspressifSystems]

Thanks for your support and feedback. Have you checked the following links? docs.espressif.com/projects/esp-idf/en/latest/esp32c3/api-reference/network/esp_now.html github.com/espressif/esp-now github.com/yoursunny/WifiEspNow

[@ishdemon_]

@@EspressifSystems those links don't have anything about OTA..

[@EspressifSystems]

@@ishdemon_ More documentation is coming up a bit later!

[@anispinner]

Espressif stands for Impressive.

[@kychemclass5850]

Espressif rocks.

[@kmschwem]

So I guess we won’t see a esp32 with Zigbee or zwave. That’s a shame.

[@EspressifSystems]

Maybe you haven't heard the news yet, but ESP32-H2 has been officially recognised as a "Zigbee-compliant platform": www.espressif.com/en/news/ESP32-H2_Thread_and_Zigbee_certified

[@kmschwem]

@@EspressifSystems No I didn’t hear that. Awesome news for the iot market.

[@EspressifSystems]

@@kmschwem thanks! You can subscribe to our newsletter, so you get all our latest news straight in your inbox. Here's the link: www.espressif.com/en/subscribe

[@alphoncemutabuzi6949]

I love it

[@heemagauss8691]

briefly : the future technology, right now

[@rusticagenerica]

What a shame you don't share layers of actual boards we can buy to try this out.

[@billordonezegoavil7013]

Amazing

[@proto_hexagon5649]

woowwwww. can control IC-LED like WS2811 led strips? now day i control it with Arduino mega

[@timpeterson2738]

Are your led's individually addressable and how many led's. I'm about to finish building a star that has addressable let's on both sides. It's a 5 point star each side is 19 I inches long with 1 " spacing between let's. I was going to use a ATmega because it's a Christmas star but now I'm thinking esp32 or esp8266, I'm a nubby to a this so if your ahead could you point me in the right direction please and thank you.

[@proto_hexagon5649]

@@timpeterson2738 yes they are individually addresable led.i use it for the same propouse, Christmas eve. are around 800 LED. 25meters strip. With ATmega 2560 work OK but when i try light them all give me some anoing patern light. i think ATmega can handle easy 400 lighting all of them. I have around 800 and some of christmas patherns where only light up some of them work fine. May be with and ESP32 and this ESP-NOW protocol can work better if use one as master and a second one as slave to boost the signal at midle of my 25m led strip. you are ok with that led i mean are not so much. Wich model if led strip they are? I wish to make video to show you but they are already instaled and are 15meter high. Let me know what you need and see if i can help you.

[@EspressifSystems]

For all your technical questions, please raise a "new issue" here: github.com/espressif/esp-now/issues

[@EasyOne]

nice

[@weistrass]

We need tutorials now

[@anthonycross901]

Interesting but music makes it difficult to follow and voice is too soft.

[@mutthunaveen]

Superrrr.....

[@darkestmon]

The best of all... they're cheaper to buy

[@kakkun61]

👀

[@rodstartube]

too much to be true, and it is

[@GoodEnough030]

Espressif is a great company but Ai-thinker is not. Their products are terrible I got a Esp C3 12F kit its footprint is wrong....

[@vobinli7054]

666