Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic

Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic

Marsoni

M251S

$10.74

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / QwiicThe Adafruit ISO1540 Bidirectional I2C Isolator is designed to provide full electrical isolation between two sides of an I2C bus. Perfect for setups where you need to keep an I2C bus controller and an I2C device electrically separated due to grounding differences, noise reduction, or special power monitoring requirements. This board uses the TI ISO1540 chip, which supports bidirectional I2C communication up to 1 MHz with clock stretching and operates

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I bought this hat for my husband, twice. He loved the hat, and the dog did too. My dog Lola, ate the hat twice. With these cold, snowy New England days and nights, this hat was so warm, soft and felt great on his head, it was perfect until Lola decided if anyone would have it, it would be her! Is there any way you could possibly replace this hat??

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Reviewed in the United States on January 3, 2026

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Candid Colin

West Palm Beach, US

★★★★★ 5

Comfortable

Size: One Size, Color: Black

Warm and stretches to fit without feeling tight, my favorite lightweight knit hat.

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Reviewed in the United States on April 12, 2026

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Anonymous

Battle Creek, US

★★★★★ 3

Pure 100% Cashmere Beanie for Men - runs very small.

Size: One Size, Color: Black

A soft cashmere which is ribbed. However it is advertised as a Mens hat but size is very small for a man. Would be a better fit for a petite woman. Looks here like it has a turn up ribbing at bottom, but it does not.

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Reviewed in the United States on February 24, 2026

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Odin CN

Port Orchard, US

★★★★★ 4

Quite short so had to return item

Size: One Size, Color: Classic Grey

I loved the color and texture, but unfortunately, it was quite short so didn’t provide enough coverage.

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Reviewed in the United States on December 30, 2025

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