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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.

Cut Your Data Usage in Half with Notefile Templates banner

August 11, 2026

Cut Your Data Usage in Half with Notefile Templates

Every JSON Note you send ships its field names alongside its values, over and over, for the life of the device. Notefile templates tell Notecard to store and transmit fixed-length binary records instead.

July 28, 2026

Introducing Notehub IQ: Use AI to Talk to Your Products

Ask questions about your deployed products in plain language and get answers back from the data you already collect — through the Notehub MCP, with no data pipeline to build.

July 14, 2026

Interrupt-Driven IoT with the Notecard ATTN Pin

Unnecessary polling is where battery-powered IoT quietly bleeds power. Here's how Notecard's ATTN pin lets a host MCU remain in deep sleep at µA levels and wake only when something actually happens.

July 7, 2026

Pole-to-Pole: Introducing Starnote for Iridium

Introducing Starnote for Iridium, the affordable way to add truly global, pole-to-pole satellite failover to any Notecard solution - with bundled data and no monthly fees.

June 30, 2026

CAN Bus for Automotive IoT: From OBD-II to the Cloud

Automotive CAN bus carries everything from RPM to battery state. Here's how to physically tap it, decode the frames, and stream vehicle data to the cloud in your own IoT projects using Blues Notecard.

June 9, 2026

New Tools for Managing Notehub Organizations

Notehub Organizations are an updated version of Notehub billing accounts, with several new features for Notehub administrators.

May 29, 2026

Provisioning IoT Fleets at Scale with Notehub

A multi-stage provisioning workflow that takes IoT devices from the manufacturing line to the customer's site without a single manual configuration step.