Philip Shuman on Twitter: "Morse code wifi "walkie-talkie" hardware is now soldered together! Case to come next. #esp12e https://t.co/lw1P8jf4r3" / Twitter
Esp32 Walkie talkie no wifi required - YouTube
ESP8266 ESP-12F ESP-12S ESP-12E Serien WIFI Modul Upgrade Remote-Wireless WIFI Mikrocontroller 802.11N Modul Entwicklung - AliExpress Verbraucherelektronik