Fuel gauge ICs offload effort when it comes to taking reliable battery readings and estimating charge and drain times. Zephyr's support for these components makes using them even easier.
Sniffing network packets from a cellular modem is actually pretty easy. It only seems daunting because at first glance you're left wondering how to acquire the packets. Nordic's nRF91 modems have a trace capability that can be used to pipe packets from the device into Wireshark over a USB connection. Here's how to use it.
The Zephyr shell subsystem will help you directly interact with and troubleshoot your IoT hardware. This post details our most commonly used commands, as well as a listing of all Zephyr shell modules that we could extract from a recent project.
The Nordic nRF91 modems include secure storage for TLS credentials. This may be used to authenticate with Golioth. The assets are stored separately from the firmware, and once written, they cannot be read back from the device. This guide shows the process of storing and using credentials.
Golioth removes the pain of connecting constrained devices to the cloud. This post shows you how to add Golioth to your existing Zephyr project and get your first device connected.
It's easy to see that Golioth makes firmware updates for internet-connected devices a snap. But combine Golioth Cohorts, our improved OTA event log, and interconnectivity tools like SMP, and you end up with a powerful OTA scheme for all of the controllers in a complex system.
Did you know that Zephyr doesn't have a plain old GPIO example? The closest thing is the blinky example that controls LEDs. Why is that? Zephyr expects you to write your own devicetree bindings. It's not that hard, and it's the topic of today's post.
