Hardware-in-the-loop testing for embedded teams

Your CI shouldn't depend on a Raspberry Pi under someone's desk.

OnMCU replaces your DIY hardware test rig with managed, cloud-hosted microcontroller testing that just works.

Problems you know too well

Jumper wires come loose and break overnight CI runs
Only one engineer knows how the test rig actually works
Adding a second board means rewiring everything

You find out the rig is down when builds start failing
New team member or second project? No spare hardware
Serial loopbacks can't test real peripheral behavior

Sound familiar?

You've got a Raspberry Pi in a storage room, connected to your devboard with jumper wires. Your CI pipeline SSHs into it, flashes firmware, runs tests over a serial loopback, and — most of the time — it works.

Until a wire comes loose. Or the SD card corrupts. Or the one person who set it up leaves the company.

You built that rig because you cared about testing on real hardware. That was the right instinct. OnMCU gives you everything that setup was supposed to be — without the duct tape.

Your Benefits

Cloud-Based Hardware Access

No more VPN tunnels into the office network to reach the test rig. Access real MCU boards from anywhere through a secure cloud platform — no physical access required.

Real Hardware Testing

Unlike your serial loopback setup, OnMCU includes proper measurement tools and signal generation. Test on real silicon — not emulators, not simulators, not QEMU.

Seamless CI/CD Integration

Works with GitHub Actions, GitLab CI, and your existing pipeline — without the custom bash scripts, SSH tunnels, or fragile port forwarding.

Automated and Instant Testing

No more manual reset-flash-test cycles. OnMCU handles board provisioning, firmware flashing, and test execution automatically — instant setup, zero maintenance.

Backed by

Ready to retire your Raspberry Pi?

Upgrade from duct tape and jumper wires to production-grade MCU testing. No hardware to buy, no rigs to maintain.

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