---
title: "Discussion on \"ESP32 Embedded Rust at the HAL: I2C Scanner\" | Hashnode"
description: "Discussion on \"ESP32 Embedded Rust at the HAL: I2C Scanner\". This blog post is the eleventh of a multi-part series of posts where I explore various peripherals in the ESP32C3 using embedded Rust at the HAL level. Please be aware that certain concepts in newer p"
url: "https://hashnode.com/posts/esp32-embedded-rust-at-the-hal-i2c-scanner/65b3bb20c3099a8818184284"
---

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# [ESP32 Embedded Rust at the HAL: I2C Scanner](https://blog.theembeddedrustacean.com/esp32-embedded-rust-at-the-hal-i2c-scanner?utm_source=hashnode&utm_medium=feed)

This blog post is the eleventh of a multi-part series of posts where I explore various peripherals in the ESP32C3 using embedded Rust at the HAL level. Please be aware that certain concepts in newer p

Jan 26, 2024 · 8 min read · blog.theembeddedrustacean.com  
Updated Jul 1  
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## Written by

[Omar Hiari](https://hashnode.com/@omarhiari)

@omarhiari

  
[View profile](https://hashnode.com/@omarhiari)

I am an 📟 Embedded Engineer with years of experience in both industry 🏭 and academia 🏫. Passionate Mentor 👨‍💼 and Instructor 👨‍🏫. Rustacean 🦀

## Responses 2

Markdown supported · ⌘↵ to post

[Ted](https://hashnode.com/@tschundler)

[Aug 12](https://hashnode.com/posts/esp32-embedded-rust-at-the-hal-i2c-scanner/65b3bb20c3099a8818184284/comment/6a7c2953578a7af9ad591ab9)

This says updated July 1 2026, but it appears to be at least 2 years obsolete. esp32c3\_hal is replaced with esp\_hal+device feature.

[Omar Hiari](https://hashnode.com/@omarhiari)

[Aug 12](https://hashnode.com/posts/esp32-embedded-rust-at-the-hal-i2c-scanner/65b3bb20c3099a8818184284/comment/6a7c2953578a7af9ad591ab9#reply-6a7c2ae651b40c5bb935f9d9)

Hello [Ted](https://hashnode.com/@tschundler "Ted"), that is correct. The code is obsolete and dates back to the pre-v1.0 HAL. The update date was changed by an automated process that fixed some broken links. Since the publication of _Simplified Embedded Rust_, the book has become the central source for all updates.