The reel board is a evaluation board based on the Nordic Semiconductor nRF52840 SoC. The board was developed by PHYTEC Messtechnik GmbH in cooperation with Zephyr Project for the Zephyr Hackathon – “Get Connected”.
reel board is more than just another evaluation board. It is equipped with the Electrophoretic Display and environmental sensors. This not only makes it easy to try out Zephyr OS, but also the following use cases can be evaluated:
battery powered sensor node
low power, low cost HMI for remote control or environmental sensor monitoring
interactive badge for the meetings and conferences
product, name or price tag
just a temperature and humidity sensor on your table
more details: https://github.com/zephyrproject-rtos/zephyr/wiki/reel-Board
Recently a pull request was submitted to the Zephyr tree introducing a new shell subsystem replacing the original shell. The new shell, if we can call it a shell comes with lots of new features and opens the gates for lots of additions and improvements. This is after all intended for debugging and testing, but it can provide an interface to interactively interface with Zephyr internals.
From the original PR, here are the highlights:
Multi-instance – you can have independent shells on different transmission mediums
Integration with Log module – you can read logs on the shell screen, filter them dynamically (activate logs only for needed modules), suspend or resume
Smart completion with the Tab key. One can prompt and partially/fully complete commands or its subcommands.
Easy command edidtion with buttons: Tab/Backspace/Delete/Arrows/Home/End
Wildcards support – so far only ‘*’ character
Kconfig configuration to optimize resources usage.