Upload device logs on the cadence your fleet actually needs

Embedded debugging usually means a serial cable, a desk lamp, and a printout taped to the wall. The moment a device leaves your bench, those logs disappear. libscadable holds a 128-record ring buffer in RAM and a flusher task that drains it into one MQTT batch on a cadence you set. Your printf calls show up in a browser, filterable, and feed every other diagnostic surface in the platform.

Crash? You get the stack trace, register state, and last 32KB of log buffer. Reboot? You see the reason. Power-on, watchdog, brownout, software-triggered.