---
title: "Discussion on \"30 ATtiny412 Chips Recreate a 1928 Bicycle-Chain Number Sieve\" | Hashnode"
description: "Discussion on \"30 ATtiny412 Chips Recreate a 1928 Bicycle-Chain Number Sieve\". 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."
url: "https://hashnode.com/posts/30-attiny412-chips-recreate-a-1928-bicycle-chain-number-sieve/6ab7483e8e6098d8410e11e2"
---

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# [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.

Sep 26 · 3 min read · circuitrocks.hashnode.dev  
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-   [#attiny412](https://hashnode.com/tag/attiny412)
-   [#rp2040](https://hashnode.com/tag/rp2040)
-   [#microcontrollers](https://hashnode.com/tag/microcontrollers)
-   [#retro-computing](https://hashnode.com/tag/retro-computing)
-   [#embedded-systems](https://hashnode.com/tag/embedded-systems)

## Written by

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@circuitrocks · Manila, Philippines

  
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