# Developer reports faster feature detection on $2 ESP32-S3 microcontroller

_Published Monday, October 26, 2026 at 2:18 PM EDT · Infrastructure · Latest · Tier 2 — Notable_

A developer published an accelerated FAST feature detector for the $2 ESP32-S3 microcontroller, reporting throughput of 11.2MP/s versus 5.1MP/s for the reference implementation in their testing. The source code is available through the developer's post.

The implementation uses the chip's 128-bit SIMD instructions to process multiple pixel values together. It works around restrictions on misaligned reads and signed comparisons. The reported improvement applies to feature detection, rather than an entire computer vision application.

## Sources

- [shraiwi.com](https://shraiwi.com/blog/simd-fast-esp32s3/)

---
Canonical: https://techandbusiness.org/newswire/kukmmjbaRAV8sbJcl0MfRr
Published: 2026-10-26T18:18:54.222Z
Story chronology: 2026-10-25T22:29:47.000Z
Retrieved: 2026-10-26T20:59:52.337Z
Publisher: Tech & Business (techandbusiness.org)