The author implemented a SIMD-accelerated FAST corner detector for the ESP32-S3, achieving roughly double the performance of the reference implementation at ~6ms per QVGA frame. The work also includes a custom register allocator called 'basm' and explores the relatively under-documented 128-bit SIMD instructions available on this low-cost chip.
Background
The ESP32-S3 is a popular dual-core 240MHz microcontroller with WiFi/BLE by Espressif, priced around $2-3, making it one of the most affordable development boards for edge AI and IoT projects.
- Source
- Lobsters
- Published
- Oct 25, 2026 at 10:57 PM
- Score
- 6.0 / 10