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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.

Configuring Your Notecard for GPS Tracking—A Beginner’s Guide banner

April 8, 2025

Configuring Your Notecard for GPS Tracking—A Beginner’s Guide

Everything you need to know about configuring your first Notecard for GPS tracking

TJ VanToll
TJ VanTollPrincipal Developer Advocate
April 2, 2025

The Anatomy of JSON and JSONata

Learn more about the structure of JSON and transforming JSON objects with JSONata.

Blues University
Blues UniversityIoT and Embedded Development Content
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.

Alex Bucknall
Alex BucknallStaff Developer Experience Engineer
March 19, 2025

Routing IoT Data to Adafruit IO (and Beyond)

Learn how to use Notecard and Notehub to route collected sensor data for visualization (and more) on Adafruit IO.

Rob Lauer
Rob LauerSenior Director of Developer Relations
March 11, 2025

Sending Your IoT Data to a Cloud Platform

An introduction to the how and why of syncing your IoT data with the cloud.

Blues University
Blues UniversityIoT and Embedded Development Content
March 5, 2025

Using Serial Logs Effectively

A beginner's guide for using serial logs to debug embedded programs.

Blues University
Blues UniversityIoT and Embedded Development Content
February 25, 2025

Introducing Notehub Smart Fleets

Learn about smart fleets, a new Notehub feature that lets you dynamically group your devices based on their data.

TJ VanToll
TJ VanTollPrincipal Developer Advocate