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Previous video: https://youtu.be/MzxBBXpgwrE
ESP32 WiFi video: https://www.youtube.com/watch?v=ZAqNKaX3LQ0&t
ESP32 Bluetooth video: https://www.youtube.com/watch?v=2SWj49ugr3A
nRF24 videos: https://www.youtube.com/watch?v=SZYwvvh6m-s https://www.youtube.com/watch?v=Nd_Kc7BXa54
433MHz RF Module video: https://www.youtube.com/watch?v=PKowvbnIxso
LoRa videos: https://www.youtube.com/watch?v=nP6YuwNVoPU https://www.youtube.com/watch?v=ItZwa1AdrpU https://www.youtube.com/watch?v=2YJHcGQnpAk&t=23s

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Wireless communication is awesome! Right? Only problem is that there are many different methods and techniques which all use different frequencies and sometimes require extra hardware. But if you do not want to spend extra money on hardware, then the ESP microcontroller boards offer WiFi and Bluetooth. Those only come with a "short" range though. So in this video I will test ESP-NOW which is a wireless communication method that can be used with the ESP boards. It gets rid of many disadvantages while not needing extra hardware. So let's see what it can do and ultimately push it to the limit by building a crude Walkie-Talkie. Let's get started!

Websites shown/used in the video: 
https://www.elektormagazine.com/articles/diy-walkie-talkie-based-on-esp-now
https://www.espressif.com/en/solutions/low-power-solutions/esp-now
https://randomnerdtutorials.com/esp-now-esp32-arduino-ide/

Thanks to Elektor for sponsoring this video

0:00 A New Wireless Communication Method?
1:46 Intro
2:53 The Problem with WiFi & BT
4:22 Extra Hardware?
4:33 ESP-NOW Theory
5:10 First Test ESP-NOW
6:20 Range Test ESP-NOW
7:30 Comparison of all Wireless Methods
7:59 Walkie-Talkie Build with ESP-NOW
11:32 Verdict