Trial Run

For project owners — quickly build a demo firmware without going through the full Build tab workflow. Requires a project that already has code with setup()/Serial.begin().

Steps

1. Click your avatar/account name in the top-right corner of the Workspace header → select "Trial Run" (or go directly to /workspace/projects/{id}/trial-run).
2. In the panel on the right, under "Enter test text": type any text (e.g. "Hello ESP32") — this text will be printed to Serial so you can confirm the latest firmware is actually running.
3. Click "Build".
4. Watch the build log until you see [success] Build succeeded.
5. Once the build finishes, the "Flash Firmware" button becomes enabled.
6. Click "Flash Firmware".

Result: you're taken to the Quick Test Wizard at /workspace/projects/{id}/quick-test?source=trial-run, continuing at Step 3 (see the article "Quick Test Wizard — 3 steps to flash firmware") — the Build button is hidden to avoid overwriting the demo firmware you just built.

If the code doesn't have setup()/Serial.begin(), the system will show an error and the build will fail — add these lines to your code in the Code tab first.

Example

For the "Room Temperature & Humidity Monitoring Station" project (ESP32 + DHT22): type "Nhiet do phong dang duoc theo doi" into the test text field, click Build — if the project's code prints this line to Serial after flashing, you know for certain the latest firmware (not an old one) is actually running on the board.