RS485 and RS232 Stackable HAT for Raspberry Pi

This stackable HAT is an add-on board for Raspberry Pi that provides two UART ports supporting both RS485 and RS232. Compatible with Raspberry Pi 3, 4, and 5, the HAT requires no additional software as the drivers are included in the Linux kernel. This device is ideal for connecting Raspberry Pi to various serial devices such as sensors and industrial equipment.

Features

• RS485 transceiver connected to Raspberry Pi UART1 (GPIO pins 8, 10)
• RS232 transceiver connected to Raspberry Pi UART3 (GPIO pins 32, 33)
• Compatible with Raspberry Pi versions 3, 4, and 5
• Stackable with any other HAT (only one card per Raspberry Pi)
• Compact size (93mm x 13mm)
• Pluggable Connectors 26-16 AWG wires
• Status LEDs on both serial ports
• No additional software required (drivers included in the Linux kernel)
• All mounting hardware included: stand-offs, screws and nuts
• ECCN Code EAR99

Specifications

• RS485 Port: Max 921,600 bps
• RS232 Port: Max 230,400 bps
• Card takes 5V and less than 40mA of power from the Raspberry Pi GPIO connector

Resources

Two Serial Ports

• Schematic V1
• 3D Step Model
• 3D Online Viewer

Four Serial Ports

• Schematic V1
• 3D Step Model

Eight Serial Ports

• Schematic V1
• 3D Step Model

Pinout

Package Contents

• 1x Two Serial Ports add-on HAT for Raspberry Pi
• Mounting hardware
  • 2x M2.5 x 18mm male-female brass standoffs
  • 2x M2.5 x 5mm brass screws
  • 2x M2.5 brass nuts
• Connector plugs