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What’s New
Resources
API Reference
Notecard and Notehub API documentation
Blog
Technical articles for developers
Connected Product Guidebook
In-depth guides for connected product development
Developer Certification
Get certified on wireless connectivity with Blues
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The monthly Blues developer newsletter
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Connect to a Notecard in your browser
Webinars
Listing of Blues technical webinars
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homechevron_rightBlogchevron_rightFirmware

Firmware

August 11, 2026

Cut Your Data Usage in Half with Notefile Templates

Every JSON Note repeats its field names with its values for the life of the device. Notefile templates have Notecard send fixed-length binary records instead.

  • Notecard
  • Cellular
  • Satellite
  • Firmware
Rob Lauer
Rob LauerSenior Director of Developer Relations
July 14, 2026

Interrupt-Driven IoT with the Notecard ATTN Pin

Unnecessary polling drains IoT batteries. Notecard's ATTN pin lets a host MCU stay in deep sleep at µA levels and wake only when something happens.

  • Low Power
  • Notecard
  • Firmware
Rob Lauer
Rob LauerSenior Director of Developer Relations
May 6, 2025

Debugging Embedded Applications on STM32

An overview of debugging techniques for programs deployed to an STM32 microprocessor.

  • Blues University
  • STM32
  • Firmware
  • Intermediate
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
  • Beginner
  • Arduino
  • Firmware
Blues University
Blues UniversityIoT and Embedded Development Content
October 31, 2024

Why Beginning Embedded Developers Shouldn't be Afraid of C

Learn more about why C is such a popular language for embedded development and how it's accessible even to Python, JavaScript, or Go developers.

  • Blues University
  • C
  • Firmware
  • Beginner
Blues University
Blues UniversityIoT and Embedded Development Content
October 16, 2024

Embedded Software Development: Tools and Environment Setup

What embedded software development involves, the write-build-flash-debug workflow, a comparison of IDEs and tools, and how to set up your first environment.

  • Blues University
  • Arduino
  • Firmware
  • Beginner
Blues University
Blues UniversityIoT and Embedded Development Content

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