# Raspberry Pi UART HAT

Isolated USB to Dual UART Industrial HAT++ for Raspberry Pi

- **Seller:** [Brechel Electronic](https://lectronz.com/stores/be-iis), Plochingen, Baden-Wurttemberg, Germany
- **Price:** €82.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Kits, Raspberry Pi, RS232/RS485
- **Product page:** https://lectronz.com/products/be-iis-hpp-uart

## Links

- [Documentation](https://www.be-iis.eu/download/tindie/be-iis-hpp-uart-b-product-page/)
- [Code](https://www.be-iis.eu/download/tindie/be-iis-hpp-uart-b-github/)
- [Design Files](https://www.be-iis.eu/download/tindie/be-iis-hpp-uart-b-datasheet/)
- [Schematics](https://www.be-iis.eu/products/BE-IIS-HPP-UART_B/schematic.pdf)
- [Bom](https://www.be-iis.eu/products/BE-IIS-HPP-UART_B/ibom.html)

## Images

![Raspberry Pi UART HAT](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzE0NDMsInB1ciI6ImJsb2JfaWQifX0=--5a0943c3c933d601b3a0e1ef39331c525ae4b58a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-07-07T19-52-00.699Z-BE-IIS-HATUART_TOP_real.jpg)
![Raspberry Pi UART HAT](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzE0NDQsInB1ciI6ImJsb2JfaWQifX0=--762e9ede89368fde0a18033bde775e11183cbf1d/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-07-07T19-52-00.699Z-BE-IIS-UART_ANNOTATED.jpg)

## Description

The UART available on the RSP 40-pin header enables direct serial communication and provides a reliable debug interface if other communication interfaces fail.

This HAT provides a galvanically isolated FTDI-based UART-to-USB interface for robust communication and protection against ground potential differences and noise coupling. As part of the BE-IIS HAT++ ecosystem, it is stackable with other HATs from the portfolio for seamless system expansion and simplified system integration.

The open-source BE-IIS Installer configures this HAT—and all other HATs in the BE-IIS portfolio—in minutes, without requiring in-depth Linux knowledge.

## Shipping policy

If your shipment appears to be lost or has not arrived within a reasonable time, please contact us. We will investigate the issue with the shipping service provider and arrange a replacement or refund where appropriate.

Please ensure that the delivery address provided at checkout is complete and correct. Tracking information is provided whenever available.