SB Components launched "Serial Expansion HAT for Raspberry Pi" to expand the functionality and capabilities of the Raspberry Pi, This Expansion HAT for Raspberry Pi gives you an I2C interface & 2-channel UART with 8 programmable GPIO Pins. To do more things with this Raspberry Pi Serial Expansion HAT we added more slots and there are 8 programmable GPIO pins in which you can attach more accessories and Add-ons.

- Standard Raspberry Pi 40-pin GPIO extension header supports Raspberry Pi, series boards
 - Onboard SC16IS752, expand 2-channel UART and 8 programmable GPIO through I2C
 - Stackable upto 16 modules by setting the address jumper, which means up to 32-channel UART
 - Onboard multi LEDs for indicating the UART working status
 - Reserved I2C control pins
 - Comes with development resources and manuals.
 
Resources