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Heap Heap Hooray — Zephyr Podcast #019

By January 23, 2026No Comments


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The summary below was automatically generated using the assistance of AI tools.

Episode Summary

  • Flash Savings: Use the new SHELL_HELP macro to store shell help strings more efficiently. It’s helped save over 1 KB of flash for the I3C shell module!
  • ESP32-C5: Seeed Studio announced a new board in their XIAO series, featuring the dual-band WiFi 6 ESP32-C5 module.
  • Curl & AI Slop: A recent flood of AI-generated, hallucinated/invalid vulnerability reports forced the curl project to shut down its bug bounty program.
  • LIN Subsystem: Introduction of the Local Interconnect Network subsystem, bringing standardized support for this low-speed automotive bus.
  • Cleanup Classes: Implementation of compiler-level cleanup attributes to enable RAII-style (Resource Acquisition Is Initialization) resource management in C.
  • Heap Management: A deep dive into the differences between malloc and k_malloc in Zephyr.
  • Framework Laptop: Board support for the LED matrix keyboard module, featuring a 9×36 PWM-driven grid.
  • Phytec phyBOARD-Atlas: New support for this i.MX RT1170 industrial board, highlighting its dual-Ethernet capabilities.
  • NB-IoT Connectivity: Support for the ST87M01 cellular shield for low-power wide-area networking.
  • CAN Logging: A new logging backend that allows system logs to be broadcast over a CAN bus is being proposed.
  • COBS Update: The Consistent Overhead Byte Stuffing library now supports streaming, making it easier to frame packets on the fly.
  • Upcoming Events: Details on FOSDEM 2026 and the Zephyr Brussels Meetup on January 30th.