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Life & fun · April 5, 2021

ESP32 Walkie-Talkie Using UDP Broadcast and ESP-Now

ESP32 Walkie-Talkie Using UDP Broadcast and ESP-Now launched on April 5, 2021 with 38 votes, #1,159 of 3,754 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.

In plain words

This project enables two-way radio communication using ESP32 microcontrollers via UDP broadcast and ESP-Now wireless protocols. It is designed for makers and hobbyists interested in building wireless communication devices. The system allows users to transmit and receive voice or data between ESP32 units without relying on cellular networks or internet connectivity. It represents a practical application of ESP32's built-in wireless capabilities for local area communication.

written from the facts on this page · September 2026

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