Entries by Mike Szczys

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How to Send IoT Data in Batches

Golioth makes it easy to cache your IoT sensor data and upload it in a batch process. This guide details how this works from both the device and the cloud side, including many details on dealing with timestamps and destination routing.

Taking Your Hardware To Production with Zephyr

Manufacturing is marathon, not a sprint. Chris Gammell walks through five phases of IoT device production, discussing what’s involved in each step and how Zephyr RTOS can help during his talk from the 2024 Embedded Open Source Summit.

How to use the RAK5010 cellular dev board with Zephyr

The RAK5010 is a cellular board based on Quectel’s BG95 modem (Qualcomm chipset). A Nordic nRF52840 microcontroller “runs the show”, connecting to the modem via UART. This is a nice combination for a number of applications like remote sensing, application tracking, and Bluetooth <> Cellular gateway. Let’s walk through the process of developing for this board in the Zephyr RTOS.

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Storing Golioth credentials on the nRF9160 using TLS Tags

Nordic’s nRF9160 cellular modem includes a great peripheral called the Key Management Unit (KMU). This secure key storage mechanism lets you write keys to it which cannot be read back. However, they can still be used for DTLS authentication. In this video and blog post I’ll walk you through how to use the feature with […]