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Full-circle Test-driven Firmware Development with OpenClaw

Full-circle Test-driven Firmware Development with OpenClaw

Adafruit Industries vor 8 Monaten

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5:58

Podcast

Adafruit Industries

198 Episoden

DIY electronics projects & much more

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Ladyada: "I've only had OpenClaw installed on this Raspberry Pi 5
for a couple of days, but boy, have we burned through a lot of
tokens and learned a lot. Including what I think is a really fun
improvement in my development process: “Agentic test-driven
firmware development.” I've used LLMs for writing code as a sort of
pair-programming setup, where I dictate exactly what I want done.
But this is the first time that I'm giving full access to the
hardware to the LLMs and letting Claude Opus 4.5 as a manager to
control Codex subagents. Not only does it parse the datasheet for
the register map and functionality, Claude also comes up with a
full development and test plan, writes the library, tests it on
existing hardware, and then also works up a test suite that covers
all of the hardware registers to make sure that the library is
exercising the entire chip capability. For example, here I give it
an APDS-9999 color sensor and a Neopixel ring and tell it, “hey use
the Neopixel ring to verify that we're really reading red, green,
and blue data properly from the sensor,” and it will do the whole
thing completely autonomously… no humans involved! I still review
the final code and ensure the tests genuinely validate the
functionality, not just take shortcuts. There is a phenomenon known
as "reward hacking" (also called "specification gaming"). The model
may optimize for passing tests as a metric, rather than ensuring
the code truly works as intended. So far, the results have been
excellent... no surprise, since these LLMs are trained on Adafruit
open-source GitHub repositories!" Visit the Adafruit shop online -
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