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$19.57
Waveshare Serial Expansion HAT for Raspberry pi Onboard SC16IS752 2 Channels(2-ch) UART 8 GPIOs I2C Interface Stackable to 16 Modules to 32-ch UART โ€” image 1
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Waveshare Serial Expansion HAT for Raspberry pi Onboard SC16IS752 2 Channels(2-ch) UART 8 GPIOs I2C Interface Stackable to 16 Modules to 32-ch UART

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$19.57
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About this item
  • Onboard SC16IS752, expands 2-ch UART and 8 programmable GPIO through I2C, no extra pin required
  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
  • It is stackable up to 16 this modules by setting the address jumper, that means up to 32-ch UART
  • Onboard multi LEDs for indicating the UART working status; Reserved I2C control pins, allows to work with other control boards
  • Download resources: www.waveshare.com/wiki/Serial_Expansion_HAT
Product description

Overview There is only 1-ch UART port on the original Raspberry Pi, once it is used for terminal debugging, no more other serial device is allowed. What a poor situation. Now you have 2-ch extra UART, plus 8 programmable GPIOs, just bring this Serial Expansion HAT. Features Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards Onboard SC16IS752, expands 2-ch UART and 8 programmable GPIO through I2C, no extra pin required It is stackable up to 16 this modules by setting the address jumper, that means up to 32-ch UART Onboard multi LEDs for indicating the UART working status Reserved I2C control pins, allows to work with other control boards Comes with development resources and manual (examples in C and python) Specifications Operating voltage: 3.3V Expansion chip: SC16IS752 Control interface: I2C Dimension: 65mm x 30mm Mounting hole size: 3.0mm PACKAGE CONTENT Note: Raspberry Pi in the photos is NOT included. 1. Serial Expansion HAT x1 2. RPi screws pack (2pcs) x1 3. PH2.0 6PIN wire x2 100% original, support technical service, please contact us!

Product details
Brand
Waveshare
Manufacturer
Waveshare

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10 Trustpilot reviews total, with 2 shown at a time.

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Excellent
4.5 average rating
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Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

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Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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