Handling Button Press, Longpress, and Double-Tap with the Zephyr Input Subsystem
Zephyr has built in functionalities that helps embedded engineers handle button presses without custom coding each time.
Category
How To
21 posts
Find Breaking Changes in Zephyr Using Git Bisect
Finding breaking changes in upstream code is a difficult process. Git bisect and good commit discipline (like the Zephyr team maintains) helps to quickly …
Using Custom Work Queues for Sensor Readings in Zephyr
Custom Work Queues enable things like thread-aware debugging, larger amounts of customization, and the Zephyr work queue features that we know and love. This …
'Using Snippets in Zephyr: a Shorthand for Changing Build Configuration'
Zephyr snippets helps developers extend the capabilities of their device firmware with simple command line controls. This post shows how to add logging to an …
Building Zephyr for the Raspberry Pi Pico2 W
The Raspberry Pi Pico2 W is the one with a microcontroller and Wi-Fi. When most people think of Raspberry Pi as a single-board computer running Linux, this …
'Zephyr: How to Monitor Heap and Locate Memory Leaks'
Dynamic memory allocation in C is a powerful tool but also a potential source of hard to replicate bugs. This post goes over tools that are built into Zephyr …
How to Flash a Pre-Loaded Filesystem During Production
Creating a filesystem separates your everyday firmware from other data like machine learning models, images, and binaries. In this post we discuss how you can …
How to use Zephyr zbus to Communicate Between Threads
If you’re not using zbus, you probably should be. As the name indicates, this is the Zephyr bus, a built-in system for publishing, reading, subscribing to, and …
The ESP32 HCI makes any Zephyr board a Bluetooth gateway
Bluetooth HCI enables any chipset to act as a peripheral to a processor running a Bluetooth stack. We pair the ESP32-C3 HCI with a processor running Zephyr to …
Battery Monitoring with Zephyr’s Fuel Gauge Subsystem
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 …
How to Sniff Cellular Packets with a Nordic nRF91
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 …
Useful Zephyr Shells for IoT Development
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 …