# Hardware in the loop (HIL) workflow writes ESP32 code and runs hardware tests autonomously

> Source: <https://blog.adafruit.com/2026/11/10/hardware-in-the-loop-hil-workflow-writes-esp32-code-and-runs-hardware-tests-autonomously/>
> Published: 2026-11-10 20:19:45+00:00

Julian Horsey at Geeky Gadgets writes about a hardware in the loop (HIL) development setup from Andreas Spiess that has an AI write ESP32 firmware and then test it on real hardware. It’s called the Embedded AI Harness, a framework that ties the AI together with the hardware and the test scripts. The AI writes […]