Learning Devicetree is one of the more difficult parts of getting comfortable with Zephyr. This post walks you through an example error and points out things to check while troubleshooting.
Utilize Zephyr PWM capabilities to drive a simple piezoelectric speaker to play notes. Golioth did this on the Nordic Semiconductor Thingy91 and can play selected songs over a cellular connection.
Golioth is building a new training using Nordic Semiconductor's nRF7002-DK board. We think this is an affordable, flexible platform for getting started learning Golioth, Zephyr, and Nordic components.
