Set up a private peer-to-peer network without WiFi using ESP-NOW! I’ll show you how to use this powerful protocol with several ESP32 boards. Article with code samples: More articles and tutorials: Join the conversation on the forum: Subscribe to the newsletter and stay in touch: ESP-NOW is a protocol that allows you to use ESP32 and ESP8866 boards to create a private peer to peer network. Use two boards, or use ten. Transmit in one direction (half-duplex) or bidirectionally (full-duplex). With or without encryption. This magic all comes courtesy of the 2.4GHz radio transceiver that powers the ESP board’s WiFi and Bluetooth features. We can also use this radio to set up a network to send small (250 bytes) packets of data between ESP boards. No WiFi or Router is required. Mix and match boards as much as you want. I’ll be showing you how ESP-NOW works, and we’ll perform a few simple experiments with a bunch of ESP32 boards. We’ll end by building a remote temperature sensor system, then expanding it to use multiple sensors. Here is the Table of Contents for today’s video! 00:00 – Introduction 01:59 – ESP-NOW 06:56 – Getting MAC Address 09:59 – Getting Started with ESP-NOW 19:05 – ESP-NOW Broadcast Mode 28:26 – Remote Temperature Sensing 35:57 – Multiple Temperature Sensors 40:58 – Conclusion I’ve only scratched the surface of what we can do with ESP-NOW in this video, so I’ll probably be incorporating it into another project soon. Hope [More]