Skip to content

Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic

Marsoni M251S
Sale price$10.74
Pay 4 payments of $2.69 a month.Shop Pay
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
Easy Shipping

Quick Dispatch:

Your Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic ships.

Need Help?
Questions about Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 432 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
NM_HS
Charlottesville, US
★★★★★ 5
Hands free comfort!!
Size: 5 Big Kid, Color: Black
Superb comfortable, great quality and got it at such a good price. My daughter is very happy and wears these every day since a couple of months and they still look new. Best part hands free!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
O
Verified Purchase
omri
San Leandro, US
★★★★★ 5
good shoes
Size: 8 Toddler, Color: Black, Size: 8 Toddler, Color: Black
fit great the child like it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
C
Verified Purchase
Carly Perez
Phoenix, US
★★★★★ 5
Toddler approved
Size: 8 Toddler, Color: Black
My kid loves these shoes. We’ve bought them multiple times. She can get them on and off easily and they stand up to her wild adventures.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
A
Verified Purchase
Allyssa
Natrona Heights, US
★★★★★ 5
So cute and so worth it!
Size: 3 Little Kid, Color: Turquoise
AMAZING for my 7 year old daughter. She can tie shoes but I no longer have to wait on her to do so. It takes 2 seconds for her to put these on and she says that they are super comfortable. We have been to Silver dollar City multiple times and she never complains about her feet hurting! They are easily washed in the washer. They hold up great. I think they are very much worth the money! Fit normal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
M
Verified Purchase
Morgan
Pawtucket, US
★★★★★ 4
Our everyday shoe!
Size: 13 Little Kid, Color: Turquoise
Great shoes and good fit. Fits as expected. The sole has worn down a bit quicker than I had hoped but my kiddo wears them everyday. I would buy them again for sure!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025

recommand products