ST-Link V3 Developer Board

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This ST-Link V3 Developer Board is designed for advanced developers who require in-circuit debugging. It is based on the ST-Link V3 Mods module and differs only in its form factor and ease of connection. Additionally, some unused ST-Link V3 Mods and Flipper Zero pins are exposed.
<div class="info flipper-callout">
    <div class="callout-header">You don’t need this board to update your Flipper Zero</div>
    You can update the firmware, develop and upload your own firmware to Flipper Zero via USB without this Developer Board! The Developer Board is only necessary if you need to debug the firmware while it is running, using tools such as GDB, OpenOCD, and others. If you’re not familiar with how to use it, then you don’t need this board.
    </div>
<div class="info flipper-callout">
    <div class="callout-header">You don’t need this board to update your Flipper Zero</div>
    You can update the firmware, develop and upload your own firmware to Flipper Zero via USB without this Developer Board! The Developer Board is only necessary if you need to debug the firmware while it is running, using tools such as GDB, OpenOCD, and others. If you’re not familiar with how to use it, then you don’t need this board.
    </div>
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On this page, you’ll find the main specifications of the ST-Link V3 Developer Board, its schematics, and a link to the Altium Designer project.
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Specifications
ST-Link V3 Mods for firmware flashing and in-circuit debug.
Built-in UART to USB, connected to Flipper Zero’s UART (GPIO pins 13 and 14).
Unused Flipper Zero pins are exposed for debugging and prototyping.
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Schematic and BOM
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Altium Designer project source
﻿github.com/Flipper-Zero/flipperzero-devboard-stlinkv3﻿
Updated 16 Aug 2024
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Flipper Zero schematics
External modules blueprints