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Technical articles on everything in the Internet of Things, from Arduino to Zephyr. Written by developers, for developers.

November 21, 2025

Level Up Your IoT Fleet with the Latest from Notehub

A quick tour of the latest Notehub features built for IoT developers and fleet administrators.

Notecard Disconnected

Having trouble connecting?

Try changing your USB cable as some cables do not support transferring data. If that does not solve your problem, contact us at support@blues.com and we will get you set up with another tool to communicate with the Notecard.

Advanced Usage

The help command gives more info.

Connect a Notecard

Use USB to connect and start issuing requests from the browser.

Try Notecard Simulator

Experiment with the Notecard's API on a Simulator assigned to your free Notehub account.