#223 ESP-NOW simple demo – easy IOT data transfer on ESP32 or ESP8266

In this IOT world we need a simple way of sending data to a hub. Welcome to ESP-NOW.
JLCPCB Only $2 for PCB Prototype any colour https://jlcpcb.com/cyt including aluminium.

It was brought to my attention by a viewer that ESP-NOW is a protocol ideally suited to sending out small amounts of data (up to 250 characters) so I just had to experiment.

With an ESP32 receiver and an ESP8266 transmitter I modified the sketches written by @Rui Santos and which worked well. It was obvious that I could use this approach in my unified workshop “smart” heater controller.

Watch the video for further ideas and a working example (that you can get working in about 15 minutes)!

► Modified sketches (Arduino IDE) for the sender and receiver in my GitHub
https://github.com/RalphBacon/223-ESP-NOW

Click on ANY of the Banggood links below *before* visiting them to support this YouTube channel!

► ESP8266 modules
ESP-01 simple unit ideal as a sender $4
https://www.banggood.com/custlink/KDKRBWtzVc

Geekcreit® Wireless NodeMcu Lua CH340G $3.99
https://www.banggood.com/custlink/GDKh4cPMHP

► ESP32 modules
ESP32 Development Board WiFi+bluetooth Ultra Low Power $7.99
https://www.banggood.com/custlink/D3vygCPMV9

► List of all my videos
(Special thanks to Michael Kurt Vogel for compiling this)
http://bit.ly/YouTubeVideoList-RalphBacon

► @Rui Santos’ links (thanks Rui, great info!)
Website for the ESP32 https://randomnerdtutorials.com/esp-now-esp32-arduino-ide/
Video on this ESP-NOW https://www.youtube.com/watch?v=qxwXwNS3Avw

► Official Espressif User Guide for ESP-NOW
https://github.com/RalphBacon/223-ESP-NOW/blob/main/esp-now_user_guide_en.pdf

► Please support this channel by visiting my wonderful sponsors, JLCPCB
PCB boards for just $2 including aluminium! https://jlcpcb.com/cyt

► If you like this video please give it a thumbs up, share it and if you’re not already subscribed please consider doing so and joining me on my Arduinite (and other μControllers) journey

My channel, GitHub and blog are here:
——————————————————————
• https://www.youtube.com/RalphBacon
• https://ralphbacon.blog
• https://github.com/RalphBacon
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► Cast & Crew (in no particular order)
Vocals – Ralph
Camera – Ralph
Editing – Ralph
Key Grip – Ralph
Moral Support – Dougle (Yorkshire Terrier)
Hospitality – Mrs Ralph
Re-recording – Ralph

#223 ESP-NOW simple demo – easy IOT data transfer on ESP32 or ESP8266

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Kane Dane