Waveshare Serial Expansion HAT for Raspberry Pi

The Waveshare Serial Expansion HAT for Raspberry Pi utilizes the SC16IS752 expansion chip, which serves as an I2C/SPI bus interface to provide dual-channel high-performance UART functionality. It also offers 8 additional programmable I/O pins for enhanced connectivity.

Do not exceed the specified operating voltage of 3.3V.

Avoid incorrect wiring or pin configurations that may lead to malfunction.

Do not stack more than 16 modules to prevent potential conflicts.

Utilize the Serial Expansion HAT to expand the UART capabilities of Raspberry Pi boards.

Stack up to 16 modules by setting the address jumper for increased UART channels.

Refer to the provided development resources and manual for programming examples in C and Python.

• Value: 3.3V,
• Description: The Serial Expansion HAT operates within a voltage limit of 3.3V to ensure proper functionality and prevent damage.

• 1: Attach the Serial Expansion HAT to the Raspberry Pi using the 40PIN GPIO extension header.,
• 2: Configure the device address by setting the A0 and A1 hardware configurable pins.,
• 3: Utilize the onboard I2C interface for communication with the SC16IS752 expansion chip.

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