---
title: "#attiny412 articles | Hashnode"
description: "Explore the latest #attiny412 articles, tutorials, and guides on Hashnode."
url: "https://hashnode.com/tag/attiny412"
---

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# #attiny412

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[circuitrocks](https://hashnode.com/@circuitrocks) · [Sep 26](https://hashnode.com/posts/30-attiny412-chips-recreate-a-1928-bicycle-chain-number-sieve/6ab7483e8e6098d8410e11e2)

### [30 ATtiny412 Chips Recreate a 1928 Bicycle-Chain Number Sieve](https://circuitrocks.hashnode.dev/30-attiny412-chips-recreate-a-1928-bicycle-chain-number-sieve?utm_source=hashnode&utm_medium=feed)

Maker KB Sriram rebuilt a 1928 mechanical number sieve using 30 ATtiny412 chips and an RP2040, and the century-old math still checks out perfectly.

3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/30-attiny412-chips-recreate-a-1928-bicycle-chain-number-sieve?utm_source=hashnode&utm_medium=feed)