Simantic
Simulates real firmware on a virtual microcontroller so you can test it without hardware.
Simantic runs your actual firmware on a simulated microcontroller instead of physical hardware, so CI/CD, a terminal, or an AI coding agent can test every commit. In a real example, Simantic Bot built a pull request's firmware, simulated 3 seconds of execution on an STM32F072RB, and caught a bug where an LED reset was off by one bit — flagging the exact line and the fix. Access is an HTTP API and TypeScript SDK today; Python and a CLI are listed as coming soon, alongside an MCP server for agents.
What holds up
- +Caught a real off-by-one-bit register bug in its own demo, with the exact line and fix suggested.
- +Uses real silicon as the validation reference, not just a software model assumed correct.
- +MCP support means an AI coding agent can run the same hardware-level test a human would.
Mind the limits
- −Python support and CLI access are both still 'coming soon' — only HTTP API and TypeScript work today.
- −Only one chip (STM32F072RB) is shown in the examples — breadth across other families isn't demonstrated.
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