Hoping you got enough requests to let Uno R4 Wifi use ESP-NOW... I bought two of these in the last month, hoping they'd be able to talk to each other quickly somehow. I figured that between WiFi and Bluetooth, something low-latency must be available. Now it looks like my remote-control project is …

I wasn't talking about powering it actually, I was under the impression that it couldn't give enough current for the TX line on an HC-05, but I've since found that I may need to change my voltage divider ... anyway, again, off the subject. Back to it, I'm aware the R4 can't run it, but isn't that b…

@nsolyntjes , Topic split from another topic. Please do not add your own questions to the end of other people's topics. Could you take a few moments to Learn How To Use The Forum [image] How to get the best out of this forum IDE 1.x See also FAQ - Arduino Forum for gener…

[image] nsolyntjes: has an ESP32 chip I think @ptillisch described your question of ESPNOW on Uno R4 in the other topic.

The topic I posted on was called "When will ESP-NOW be available?", in Uno R4 WiFi. I did not have a new question; that was my exact question, for that exact Arduino board. That thread concluded in "probably never, because not enough people want it". I figured it might help tracking user feedback…

[image] nsolyntjes: add a +1 This is not reddit or imgur. Your topic is yours. Stick to it and you will get replies.

[image] nsolyntjes: You don't like + It is not a matter of liking or disliking. This is not imgur or reddit. Feel free to frequent your preference.

Hi @nsolyntjes . [image] nsolyntjes: The thing has an ESP32 chip, so I figured it could be done. It is likely that it is possible, but will be more challenging than if you were using a board that has an ESP32 as the primary microcontroller. The primary microcontroller on the UNO R4 WiFi boar…

ESP Now on Uno R4 WiFi

Official Hardware UNO Family UNO R4 WiFi

xfpd May 7, 2025, 3:49am 2

It is a microcontroller i.c. for controlling devices. Use external power supplies for powering peripherals.

But the subject is ESP-NOW, which can not run on the Uno R3 or R4.

Topic		Replies	Views
When will ESP-NOW be available? UNO R4 WiFi	5	2019	February 5, 2024
How can I use the ESP32-S3-MINI-1 on the Uno R4 Wifi? UNO R4 WiFi	1	769	September 6, 2024
Arduino UNO R4 WIFI recognized as an ESP family device UNO R4 WiFi	1	76	February 17, 2026
Library compatibility issue with UNO R4 Wifi UNO R4 WiFi	5	333	August 3, 2024
Arduino UNO R4 WIFI firmware update fail UNO R4 WiFi	22	3359	January 24, 2026

ESP Now on Uno R4 WiFi

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