---
title: "Discussion on \"Integrating the DMR858M: A Practical Guide to Custom ESP32 Digital Walkie-Talkies\" | Hashnode"
description: "Discussion on \"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."
url: "https://hashnode.com/posts/integrating-the-dmr858m-a-practical-guide-to-custom-esp32-digital-walkie-talkies/68bf862ba757fd15dee08cf5"
---

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# [Integrating the DMR858M: A Practical Guide to Custom ESP32 Digital Walkie-Talkies](https://nicerf.hashnode.dev/integrating-the-dmr858m-a-practical-guide-to-custom-esp32-digital-walkie-talkies?utm_source=hashnode&utm_medium=feed)

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.dev  
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-   [#dmr](https://hashnode.com/tag/dmr)
-   [#ambe](https://hashnode.com/tag/ambe)
-   [#esp32](https://hashnode.com/tag/esp32)
-   [#embedded](https://hashnode.com/tag/embedded)
-   [#hardware](https://hashnode.com/tag/hardware)
-   [#radio](https://hashnode.com/tag/radio)
-   [#walkietalkie](https://hashnode.com/tag/walkietalkie)
-   [#arduino](https://hashnode.com/tag/arduino)

## Written by

[Ann Jiang](https://hashnode.com/@ann-jiang)

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