Observed arrival · 2026-10-14
HeapCrash: Know why it crashed
A practice site for embedded C and firmware interviews, built around finding code bugs, fixing them, and answering follow-up questions.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Embedded C and firmware interview candidates
- Worth noticing
- The basics track lists 30 problems with visible and hidden tests, using C11 or C++17 and a real compiler.
Field notes
The homepage separates development and validation tracks and lists topics including DMA, RTOS, timing, boot, and Cortex-M. Its examples describe browser-based clang builds, reference fixes, and tests that can include hidden cases. Company guides are presented as round-by-round preparation, while the whole-product design exercises are explicitly labeled as a pilot.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue