Cellular

Notecard's idle current only tells you so much about how long your device will last on a battery. This article provides the math for proper power estimation, a calculator for your own numbers, and how to measure the real answer with Blues Mojo.

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.

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.

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

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.

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