Community Spotlight: ZAPHOD – Open-Source AT Command Firmware for BLE Modules

ZAPHOD is a new open-source AT Command firmware specifically designed for Bluetooth LE modules.

Published on February 9, 2026

Community Spotlight: ZAPHOD – Open-Source AT Command Firmware for BLE Modules

Community Spotlight: ZAPHOD – Open-Source AT Command Firmware for BLE Modules 

 At Ezurio, we are committed to giving our customers more choice and more ways to develop their innovations. While we provide a wide range of official software tools, we also recognize the incredible value of community-driven projects. Today, we are highlighting a new option for developers using our Bluetooth LE (BLE) modules: ZAPHOD. 

What is ZAPHOD? 

 ZAPHOD is a new open-source AT Command firmware specifically designed for Bluetooth LE modules. For those new to wireless development, an AT Command interface allows you to control a module using simple serial commands, similar to how basic UART protocols work. This makes it much easier to integrate Bluetooth functionality into your project without needing to write complex code from scratch.

Key Features and Simple Setup

ZAPHOD is built to be accessible and versatile, running on multiple Ezurio BLE modules. To help you get up and running quickly, the project provides:

  • Pre-built Firmware Images: You don’t need to compile code yourself; ready-to-use images for specific modules and Development Kits (DVKs) are available under the "Releases" section of the repository.
  • Beginner-Friendly Guides: The project includes a Quick Start Guide (QSG) and a detailed Reference Manual to help you understand every command.
  • Open Flexibility: As an open-source project, it allows for transparency and community collaboration.

Important Compatibility and Support Note

While we are excited to see ZAPHOD support Ezurio hardware, please note that ZAPHOD is not an official Ezurio product. It is an independent project hosted on GitHub. Because this is community-developed software, official technical support from Ezurio is not available for this firmware.

For help or to report bugs, we encourage you to use the Issues and Community tabs within the ZAPHOD GitHub repository to connect with other developers.

Ready to try it out? Explore the ZAPHOD repository on GitHub to find documentation and the latest firmware releases for your Ezurio DVK.

For more information on ZAPHOD please visit:

Supported Ezurio modules/DVKs:

  • BL54L15, BL54L15µ, BL54L10
  • BL5340
  • BL653, BL653µ, BL654, BL654 USB dongle
  • Lyra 24 P20/P10/S10