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Integrating the DMR858M: A Practical Guide to Custom ESP32 Digital Walkie-Talkies

Build 5W DMR radios w/ ESP32 & DMR858M. Covers power, UART, AMBE++ vocoder, non-blocking firmware for reliable digital comms.

Sep 9, 2025·18 min read·nicerf.hashnode.devRead the article

#dmr
#ambe
#esp32
#embedded
#hardware
#radio
#walkietalkie
#arduino

Written by

Ann Jiang

@ann-jiang

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