This is the start of a new article series about Zephyr’s basics: It will walk you through Zephyr’s build and configuration systems West, Kconfig and devicetree.

Logging on embedded devices comes with a host of interesting and unique challenges that aren’t found on servers — devices are generally more memory, bandwidth, space, and CPU constrained, and devices often take weeks, months, or years to update, rather than days or hours.

Cellular devices and networks have come a long way, from brick phones and Blackberrys to iPhones and Google Pixels. In addition to being the ubiquitous connectivity protocol that keeps the Internet at our fingertips at all times, LTE is appearing in IoT products across all industries.