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What’s New
Resources
Blog
Technical articles for developers
Newsletter
The monthly Blues developer newsletter
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Connect to a Notecard in your browser
Developer Certification
Get certified on wireless connectivity with Blues
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Listing of Blues technical webinars
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homechevron_rightBlogchevron_rightNotecard

Notecard

March 25, 2025

Zephyr: How to use Shells for Prototyping & Debugging Notecard Applications

Learn how to use Zephyr Shells with examples for I2C, sensors, and custom Notecard commands.

  • Zephyr
  • Notecard
  • RTOS
  • Shells
  • Prototype
Alex Bucknall
Alex BucknallStaff Developer Experience Engineer
February 13, 2025

Using Environment Variables to Change Notecard Configuration

Learn how to use environment variables, both built-in and custom, to change Notecard configuration remotely.

  • Notecard
  • Notehub
TJ VanToll
TJ VanTollPrincipal Developer Advocate
January 23, 2025

Zephyr: Message Queues for Real-Time Processing with the Notecard

Learn how to use Zephyr's Message Queues for real-time processing with the Notecard.

  • Zephyr
  • Notecard
  • RTOS
Alex Bucknall
Alex BucknallStaff Developer Experience Engineer
December 11, 2024

How to Call Third-Party Web Services From Notecard

Learn how to make external web requests with Notecard by building a project that retrieves current weather data from the OpenWeather API.

  • Notecard
TJ VanToll
TJ VanTollPrincipal Developer Advocate
December 4, 2024

Securing Edge Applications: Encryption with Notecard

Learn how to secure your real world applications and protect sensitive data with Notecard and Notehub

  • Encryption
  • Edge
  • Notecard
  • Notehub
  • Enterprise
Alex Bucknall
Alex BucknallStaff Developer Experience Engineer
May 7, 2024

Narrowband Cellular, Wi-Fi, LoRaWAN? Individually They're All Dead. The Future is Multi-RAT.

The future of the IoT is clear when you can leverage multiple radio access technologies from a single product design.

  • NTN
  • Satellite
  • Notecard
Rob Lauer
Rob LauerSenior Director of Developer Relations
© 2025 Blues Inc.
© 2025 Blues Inc.
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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.

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Use USB to connect and start issuing requests from the browser.
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Experiment with Notecard's latest firmware on a Simulator assigned to your free Notehub account.

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