---
title: "Discussion on \"What Really Happens When You Send Data Through UART?\" | Hashnode"
description: "Discussion on \"What Really Happens When You Send Data Through UART?\". Learn how UART communication works inside embedded systems, from application and drivers to FIFOs, interrupts, DMA, and hardware transmission."
url: "https://hashnode.com/posts/uart-communication-explained/6a2c216efba029dcd44024ce"
---

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# [What Really Happens When You Send Data Through UART?](https://beyondbits.hashnode.dev/uart-communication-explained?utm_source=hashnode&utm_medium=feed)

Learn how UART communication works inside embedded systems, from application and drivers to FIFOs, interrupts, DMA, and hardware transmission.

Jun 12 · 5 min read · beyondbits.hashnode.dev  
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-   [#embedded](https://hashnode.com/tag/embedded)
-   [#embedded-systems](https://hashnode.com/tag/embedded-systems)
-   [#communication-protocols](https://hashnode.com/tag/communication-protocols)
-   [#cpp](https://hashnode.com/tag/cpp)
-   [#drivers](https://hashnode.com/tag/drivers)
-   [#uart](https://hashnode.com/tag/uart)
-   [#chip](https://hashnode.com/tag/chip)

## Written by

[Somnath Babu N R](https://hashnode.com/@somnathnr)

@somnathnr · Chennai, India

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

Sharing detailed blogs in peripheral drivers and embedded system

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