Hardware

The SIMCOM SIM7080G is a Cat M1 / NB-IoT modem that focuses on low power applications. We tested out the modem using Zephyr's subsystem to connect to the Golioth Cloud.

There are a hundred ways to provision a device, and with this NFC-based hack day project there are now 101. Follow along as we us a Nordic nRF53 as a writable NFC tag that parses the NDEF message, locates PSK-ID and PSK, then stores those credentials to add the device to an IoT fleet.

If you're already using a J-Link programmer in your embedded development, you can use it to interface directly with the target device serial port over the J-Link USB connection. This is extremely handy, especially if your hardware design connects RX/TX pins to the programming header.

We continue to showcase seamless Thread support on Golioth. We used the ESP32-C6 development board from Espressif, demonstrating how we successfully connected it to Golioth over OpenThread using ESP-IDF with minimal changes to our Firmware SDK.

This is a story of the complexities of cellular connectivity, the perils of closed ecosystems, and how to debug what you cannot see.

This post highlights moving code from one Zephyr project to another and all the considerations for code portability.

Golioth demonstrates one approach to provisioning IoT devices during manufacturing. Learn some of the challenges you will face with flashing test firmware, generating and passing x.509 certificates to the devices, and using OTA to load final production firmware.

Today marks the first implementation of running the entire Golioth firmware stack on a modem processor. This dramatically reduces resource consumption on the external MCU processor, and makes it easier to add Golioth to any hardware or platform.