Hello. I made a walkie-talkie based on a WebSocket. I think it'll help to implement half-duplex communication in ESP32. : r/arduino
100pcs Arduino Uno Nicerf All In One Walkie Talkie Module Sa828-u In 400-480mhz Uhf Voice Or Intercom And Smartphone Use Module - Replacement Parts - AliExpress
Long Range Arduino Based Walkie Talkie using nRF24L01
Arduino Based Walkie Talkie using nRF24L01
How to Make Wireless Walkie Talkie Using Arduino at Home / 1.5 K.M Range / Optional range 15 km - YouTube
How to Make Wireless Arduino Walkie Talkie using nRF24L01 - YouTube
Make your own very crude Walkie-talkie with an Arduino - YouTube
Walkie Talkie Duino from Senior Electron LLC on Tindie
Arduino RF and audio - Project Guidance - Arduino Forum
50 Pcs Arduino Uno Nicerf Walkie Talkie Module Sa828-u In 400-480mhz Walkie Talkie Module Uhf With Antenna 134-174mhz Vhf - Replacement Parts - AliExpress
Arduino Walkie Talkie : 29 Steps - Instructables
Long Range Arduino Based Walkie Talkie using nRF24L01
Long Range Arduino Based Walkie Talkie using nRF24L01 - YouTube
Arduino walkie talkie - Project Guidance - Arduino Forum
Sending sound over the internet! | Arduino projects, Electronics projects, Arduino audio