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4x4 Matrix Keypad
4x4 Matrix Keypad
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4x4 Matrix Keypad

Marsoni M251S
Sale price$10.00
Pay 4 payments of $2.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
4x4 Matrix KeypadPunch in your secret key (or Jenny's number) into this numeric matrix keypad featuring 16 buttons arranged in a 4x4 grid. The keys are connected in a matrix format, requiring only 8 microcontroller pins (4 columns and 4 rows) for scanning. This keypad includes headers for easy breadboard hookup, requiring light soldering to attach. Alternatively, you can use plain wires. It's a sturdier version of our Membrane 3x4 Matrix Keypad. The left side has four
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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1751 reviews
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M
Verified Purchase
Mark M
Los Angeles, US
★★★★★ 5
Turtle necks that camouflage the turkey neck being bery good to me
Color: Black, Army Green, Light Gray, Size: Medium
I'm a mock turtle neck and turtle neck guy .... remembering that the turtle hides the turkey .... So it's all good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2025
L
Verified Purchase
Leah M
Whiting, US
★★★★★ 5
Great quality!
Color: Black, White, Haze Blue, Size: Large
Great quality, like the colors!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2025
G
Verified Purchase
Gregory
New York, US
★★★★★ 5
Great value
Size: X-Large, Color: White
Excellent fit. Great value and very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
G
Verified Purchase
gary
Battle Creek, US
★★★★★ 5
Men's Mock Turtleneck T-shirt
Size: Medium, Color: White
I'm happy with the shirt, it was as advertised. Thanks for the fast service
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
R
Verified Purchase
robert
Draper, US
★★★★★ 4
I always like turtlenecks
Size: X-Large, Color: Black
Very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2025

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