View a gateway's console log over USB
Once a gateway is provisioned and shipped you usually manage it remotely, but when you have it on the bench you can read its live console log straight from the browser — handy for diagnosing Wi-Fi, MQTT, or sensor issues.
- Use a Chromium-based browser (Chrome/Edge). Web Serial isn't available in Firefox or Safari.
- Connect the gateway to your computer over USB.
- Go to Gateways → Connect to Gateway.
- Click Connect and pick the gateway's serial port when prompted.
- Click Open Console to start streaming the device's log.
From the console you can also:
- Get Chip ID — read the board's identity (its accesskey).
- Restart — reboot the gateway so its boot log reprints.
- Type a command (e.g.
get_chip_id,restart) in the box and Send it. - Clear — empty the log view.
The connection stays open if you switch pages and come back, so you won't be asked to re-pick the port. Click Disconnect when you're done.
This is the same USB link used to flash and provision a gateway — it does not change any settings on its own. If the port doesn't appear, see Web Serial isn't working.
If you'd rather not sign in — or the board isn't a Synacl gateway at all — the same two jobs have public equivalents that work on any ESP32. The serial monitor gives you a plain log with the boot messages explained (reset reasons, boot modes, panics and brownouts), and ESP32 chip info reads the chip, MAC and flash plus the partition table, so you can see which firmware a board is carrying and in which OTA slot.