How To Archives - The Golioth Developer Blog https://blog.golioth.io/category/zephyr/how-to/ Golioth, Zephyr, and IoT Development News and How Tos Tue, 27 Jan 2026 00:20:46 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://blog.golioth.io/wp-content/uploads/2023/09/cropped-Golioth_Symbol_Coral_RGB-1-32x32.png How To Archives - The Golioth Developer Blog https://blog.golioth.io/category/zephyr/how-to/ 32 32 Handling Button Press, Longpress, and Double-Tap with the Zephyr Input Subsystem https://blog.golioth.io/handling-button-press-longpress-and-double-tap-with-the-zephyr-input-subsystem/ Tue, 27 Jan 2026 15:01:48 +0000 https://blog.golioth.io/?p=10481 Embedded engineers know the joys and pains with button inputs: debouncing them, triggering actions, and more advanced input patterns like long holding the button down or quickly clicking more than once. If your project is based on Zephyr, you should take a look at the input subsystem to see if it can do some of […]

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]]> Find Breaking Changes in Zephyr Using Git Bisect https://blog.golioth.io/find-breaking-changes-in-zephyr-using-git-bisect/ Tue, 06 Jan 2026 15:33:02 +0000 https://blog.golioth.io/?p=10407 Finding breaking changes in upstream code is a difficult process. Git bisect and good commit discipline (like the Zephyr team maintains) helps to quickly pinpoint issues so you can pull in changes as needed.

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]]> Using Custom Work Queues for Sensor Readings in Zephyr https://blog.golioth.io/using-custom-work-queues-for-sensor-readings-in-zephyr/ Tue, 09 Dec 2025 19:07:41 +0000 https://blog.golioth.io/?p=10355 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 article details how to set up your next custom work queue to improve your Golioth-enabled application.

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]]> Using Snippets in Zephyr: a Shorthand for Changing Build Configuration https://blog.golioth.io/using-snippets-in-zephyr-a-shorthand-for-changing-build-configuration/ Tue, 02 Dec 2025 15:13:05 +0000 https://blog.golioth.io/?p=10333 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 application, but only target it at debug images and only in the application portion of a firmware image.

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]]> Building Zephyr for the Raspberry Pi Pico2 W https://blog.golioth.io/building-zephyr-for-the-raspberry-pi-pico2-w/ Tue, 11 Nov 2025 15:04:08 +0000 https://blog.golioth.io/?p=10292 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 model is a microcontroller with a slew of impressive peripherals. While the original Pico (based on the RP2040) has had Zephyr support for a long time, the Pico2 […]

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]]> Zephyr: How to Monitor Heap and Locate Memory Leaks https://blog.golioth.io/zephyr-how-to-monitor-heap-and-locate-memory-leaks/ Thu, 16 Oct 2025 14:17:38 +0000 https://blog.golioth.io/?p=10197 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 that monitor consumption over time.

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]]> How to Flash a Pre-Loaded Filesystem During Production https://blog.golioth.io/how-to-flash-a-pre-loaded-filesystem-during-production/ Tue, 09 Sep 2025 14:07:52 +0000 https://blog.golioth.io/?p=10062 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 set up the filesystem to speed up your production and create a flexible system that can be updated on-demand using Golioth's OTA service.

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]]> How to use Zephyr zbus to Communicate Between Threads https://blog.golioth.io/how-to-use-zephyr-zbus-to-communicate-between-threads/ Tue, 05 Aug 2025 14:20:13 +0000 https://blog.golioth.io/?p=9841 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 observing messages in a thread-safe way. It delivers peace of mind with minimal effort. Think of zbus as a collection of data producers and data consumers. One thread […]

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]]> The ESP32 HCI makes any Zephyr board a Bluetooth gateway https://blog.golioth.io/the-esp32-hci-makes-any-zephyr-board-a-bluetooth-gateway/ Thu, 26 Jun 2025 14:27:53 +0000 https://blog.golioth.io/?p=9726 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 turn Golioth's development platform--the Aludel Elixir--into a Bluetooth gateway.

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]]> Battery Monitoring with Zephyr’s Fuel Gauge Subsystem https://blog.golioth.io/battery-monitoring-with-zephyrs-fuel-gauge-subsystem/ Tue, 13 May 2025 14:32:08 +0000 https://blog.golioth.io/?p=9511 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.

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