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Debugging ESP32 Devices in the Field

Debugging ESP32 Devices in the Field

May 26, 2026 • By Michael Mikuš
Product

Learn how Spotflow's logs, metrics, alerts, and crash reports work together as one field-debugging workflow for ESP32 firmware. Follow a concrete failure scenario from first warning signs to crash analysis, and see what each instrument reveals.

Custom Metrics & Dashboards for Embedded Devices

Custom Metrics & Dashboards for Embedded Devices

April 28, 2026 • By Michael Mikuš
Product

Learn how to define and report custom metrics from Zephyr or any MQTT-capable device, and build custom dashboards in Spotflow for operational monitoring and product analytics. This post uses a smart lock fleet as a running example to illustrate the full pipeline from firmware instrumentation to business insights.

Send Logs from Zephyr to the Cloud with Spotflow

Send Logs from Zephyr to the Cloud with Spotflow

March 12, 2026 • By Michael Mikuš
Product

This post walks through connecting an NXP FRDM-RW612 board running Zephyr to the Spotflow observability platform using Spotflow Zephyr logging example. By the end, your device will be streaming logs to the cloud while still printing them on UART, with no changes to your application code.

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