BE-IIS HAT++
Isolated USB to Dual UART Industrial HAT++ for Raspberry Pi
Final Testing
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.
Quick Facts
Order Code
BE-IIS-HPP-UART
BE-IIS-HPP-UART
Revision
B
B
Status
Final Testing
Final Testing
Overlay
BE-IIS-HPP-UART-I
BE-IIS-HPP-UART-I
Key Features
- FT234X USB-to-UART bridge
- Integrated ESD protection
- Galvanic isolation
- TX/RX activity LEDs
- Pi UART support (Instance VI)
- I2C-UART support (Instances I, IV, V)
- Stackable HAT++ design
- RSP HAT+ compliant (2024)
- Stackable HAT (BE-IIS-HAT++)
- Configurable addressing and IRQ routing
- RoHS compliant
Applications
- UART debugging and service interfaces
- Sevelopment and prototyping
- Education and training environments
- Protocol gateway and converter design
- Industrial communication evaluation and testing
Raspberry Pi Compatibility
| Model | 32-bit | 64-bit |
|---|---|---|
| Raspberry Pi 2 | ✓ | |
| Raspberry Pi 3 | ✓ | ✓ |
| Raspberry Pi 4 | ✓ | ✓ |
| Raspberry Pi 5 | ✓ | ✓ |
| Raspberry Pi Zero | ✓ | |
| Raspberry Pi Zero 2 W | ✓ | ✓ |
Compatibility depends on the installed operating system, kernel version and enabled interfaces.
HAT Compatibility Level
| Level | Description | Configuration |
|---|---|---|
| HAT | Standard Raspberry Pi HAT behaviour | 4 configurable hardware configurations |
| HAT+ | Raspberry Pi HAT+ auto-detection mechanism | Instance ID 1 configurable |
| HAT++ | BE-IIS stackability and full board detection concept | 3 configurable hardware configurations |