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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 2, 2025

Bridging the Gap: LTE Cat-1 bis and the Future of 5G IoT

What is LTE Cat-1 bis and how does it impact the future of 5G in the IoT?

May 14, 2025

Cellular IoT Module Comparison: Notecard vs DIY Arduino

Side-by-side comparison of Blues Notecard versus a typical off-the-shelf cellular IoT module — the code, retries, power management, and OTA each one needs.

March 12, 2024

Writing Firmware That Works Across Cellular, WiFi, and LoRa

Everything you need to know about writing host firmware that works with multiple radio access technologies

February 20, 2024

Understanding the Differences Between LTE-M, NB-IoT, and LTE Cat-1 for Cellular IoT

The Blues Notecard lets you pick the protocol best for your cellular IoT deployment.

December 14, 2023

Hackster Tutorial - Hands-On with Cellular IoT on the Raspberry Pi 5

This Hackster tutorial shows you how to add low-bandwidth cellular connectivity to the Raspberry Pi 5.