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Welcome to the Blues Developer Blog

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

Introducing Blues Expert - AI Tools for Notecard and Notehub Development banner

October 15, 2025

Introducing Blues Expert - AI Tools for Notecard and Notehub Development

Amplify your AI development workflows with Blues Expert MCP server.

October 8, 2025

Enhancing Arduino with FreeRTOS—A Hands-On Tutorial

A hands-on guide for enhancing Arduino-based firmware with FreeRTOS, with examples using Blues Notecard and external sensors

September 22, 2025

Insights from the 2025 Blues IoT Developer Survey

The responses are in! Here's what we learned from this year's IoT developer survey.

September 12, 2025

Simulate an External GPS module with the Notecard AUX Pins

Use a NMEA GPS/GNSS simulator to mock location data for testing Notecard applications.

August 28, 2025

Remotely Manage Notecards with Reserved Environment Variables

Learn how to utilize certain environment variables to remotely configure fleets of Notecards.

August 5, 2025

Take Advantage of JSONata 2.0.6 in Your Notehub Routes

Learn more about the recent JSONata runtime upgrade in Notehub.

July 30, 2025

Detecting Anomalous Devices With Notehub Smart Fleets

A guide to using Notehub smart fleets to automatically detect anomalous devices—such as those that are tipped, tampered with, or reporting faulty sensor data.