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Green circuit board with 40-pin header, black chips and status LEDs

LORDWORLD

LORDWORLD Serial Expansion HAT SC16IS752 2-ch UART 8 GPIO Stackable 16 Modules 32-ch UART

SKU CH-Q9WF-MYHA6

Adds two UART channels and eight GPIOs via I2C, stackable to 16 boards for 32 channels on a Raspberry Pi 40-pin header

  • Fits Raspberry Pi 40-pin header directly
  • SC16IS752 adds 2-channel UART and 8 GPIO via I2C
  • Stack up to 16 modules for 32-channel UART
  • Onboard LEDs show UART activity status
  • Reserved I2C pins allow use with other control boards

Raspberry Pi 40-pin UART expansion

This HAT adds two UART channels and eight programmable GPIO lines to any Raspberry Pi board with a 40-pin header. The SC16IS752 bridge communicates over I2C, so no additional GPIO pins are consumed. It targets makers and engineers who need more serial ports for sensors, modems or industrial equipment.

Stackable design for multi-port systems

Up to 16 modules can be stacked by configuring the address jumpers, providing a maximum of 32 UART channels from a single Pi. Reserved I2C control pins remain accessible, allowing the stack to coexist with other I2C peripherals. Builders who need more than 32 channels or a different serial protocol will need another solution.

Low-power I2C operation with status LEDs

The board draws power from the Pi’s 40-pin header and operates at the host’s logic level, adding minimal load to the supply. Onboard LEDs show transmit and receive activity on each UART channel for quick debugging. No active cooling is required and acoustic noise is absent.

Pontos fortes

  • Fits Raspberry Pi 40-pin header directly
  • SC16IS752 adds 2-channel UART and 8 GPIO via I2C
  • Stack up to 16 modules for 32-channel UART
  • Onboard LEDs show UART activity status
  • Reserved I2C pins allow use with other control boards

Especificações

BrandLORDWORLD

Perguntas sobre este artigo

How many SC16IS752 modules can be stacked before the I2C address jumpers run out?

Up to 16 modules can be stacked by setting the address jumper on each board.

What thermal or noise issues appear when all 32 UART channels run continuously?

The HAT has no active cooling; sustained load relies on the Raspberry Pi’s own heat dissipation.

Which Raspberry Pi boards provide the required 40PIN GPIO header for this HAT?

Any Raspberry Pi series board with the standard 40PIN GPIO extension header will mate directly.

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