Sometimes you don't have extra pins for TX/RX, the UART is already in use, or you don't want to upset critical timing by printing out messages. Real Time Transfer (RTT) is perfect in these situations. It uses the J-Link programmer to transfer console debugging output, without getting a UART involved at all. Good news, it's easy to use with Zephyr!
Firmware updates over cellular are a challenging task for embedded devices. In this blog and video, we show how Golioth, Zephyr, MCUboot, and the Nordic Semiconductor nRF9160 make it possible for hardware designs to receive secure and stable firmware releases.
Your target hardware can be in a different part of the world while you develop your Zephyr app. Segger tunnel mode on the J-Link programmer means it doesn't matter if your hardware is on the desk in front of you, or back at the office.
Golioth APIs enables hundreds of connected hardware devices to do firmware updates. Espressif's ESP32 now joins that group with their port of MCUboot to their platform. This post shows how to enable this open source bootloader.
Golioth introduced a new CircuitPython SDK to allow engineers to quickly prototype hardware that can talk to the Golioth cloud. By clicking "save" and having their CircuitPython recompile on the fly, they can try new hardware quickly and efficiently.
Troubleshooting high complexity systems like Zephyr requires more thorough tools. Menuconfig allows users to see the layers of their system and adjust settings without requiring a complete system recompilation. Zephyr expert Marcin shows how he uses this tool for troubleshooting.
Embedded software developers regularly have to maintain a development environment and toolchain for their target product or chipset. Traditional methods are stuck in the past. Golioth is trying new experiments to improve overall developer experience.
