News
Zephyr 101 - Data Usage Optimizations for Cellular IoT
Jun 2, 2026
How to cut cellular data usage and power draw by more than half on the nRF9151 Feather — using PSM, always-open CoAP/DTLS sockets, and a few firmware tricks that are easy to get wrong.
Chasing microamps: getting the nRF9151 Feather to 4 µA in active sleep
May 11, 2026
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
Apr 23, 2026
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.
