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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
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== Summary ==<br />
The Stack HAT allows up to five Raspberry Pi HATs to be stacked simultaneously. It is compatible with Raspberry Pi 2B, 3B, Zero and Zero W; per the FAQ, Pi 4B is also supported.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL15799 WSAL15799 – Stack HAT for Raspberry Pi, stacks up to 5 HATs at once]<br />
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== Technical overview ==<br />
* Product name: Stack HAT for Raspberry Pi<br />
* Allows stacking up to 5 HATs at once<br />
* Stated compatibility: Raspberry Pi 2B/3B/Zero/Zero W<br />
* The FAQ section additionally confirms Pi 4B support<br />
* Manufacturer: Waveshare<br />
* Category: Raspberry Pi accessory<br />
* The product carries part number WSAL15799<br />
* The source references a schematic as a resource<br />
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== Notes and version constraints ==<br />
* Exact connector wiring, power specifications or pinout are not provided in the supplied source.<br />
* Whether all stacked HATs require their own power supplies or whether the Stack HAT provides them is not stated in the text – please verify before use in your target system.<br />
* No physical assembly instructions (screws, order of stacking) were provided in the source; during installation, manually verify correct connector alignment.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/Stack_HAT Stack HAT - Waveshare Wiki]<br />
* Source revision: 76875<br />
* Captured: 2026-08-31T02:59:26+00:00<br />
* SHA-256: <code>fab1ef9ce39a5d6940b437f69dfb68f37618408064b6b441cf68ba95e5b388ce</code></div>JWTechPublisher