Blog
Writing on nRF9151/nRF9160 Feather development, Zephyr RTOS, and cellular IoT.
Chasing microamps: getting the nRF9151 Feather to 4 µA in active sleep
Three commits on the v3.2.x branch of NFED take the active_sleep sample to ~4 µA on the nRF9151 Feather — a regulator-framework workaround, board-level pulldowns on floating pins, and the teardown sequence that ties it all together.
Zephyr 101: West, Overlays, and Faster Builds in Zephyr Tools
If `west build -- -DEXTRA_CONF_FILE=...` is forcing a pristine rebuild every time, you're paying for it. Here's a step-by-step how-to for using West overlays correctly, plus the new conveniences in Zephyr Tools that make it disappear.
Introducing Lion: A Self-Hostable IoT Server for Zephyr Devices
After three iterations and a lot of false starts, I'm finally happy enough with my IoT server to talk about it. Meet Lion: a self-hostable backend for Zephyr devices, with some opinions about how device shadows, OTA, and log streaming should work.
Debugging the nRF9151 Feather with probe-rs
Debugging your nRF9151 Feather has never been smoother: install the debugger extension, configure your launch settings, flash your code, and dive right into debugging within VS Code.
Zephyr Tools 0.5 for VSCode Now Available!
Zephyr Tools v0.5 by Circuit Dojo is now available on VSCode Marketplace and Open VSX Marketplace
Zephyr Tools 0.4 for VSCode Now Available!
Zephyr Tools v0.4 by Circuit Dojo is now available on VSCode Marketplace and Open VSX Marketplace
Zephyr 101 - Tips and Tricks for July 2025
Here are some of the tips and tricks we've learned since our last video!
Zephyr 101 - nRF Connect for VSCode
Explore IoT development with the nRF9151 Feather using Zephyr RTOS and VS Code.
Zephyr 101 - Hardware Model V2 & Sysbuild
In this Zephyr 101 video, we'll dive deep into using ZCBOR to encode and decode data efficiently.