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Membrane 3x4 Matrix Keypad

(0 Reviews)
In stock

Category: LED

SKU: 1826


MRP Price:
₹99 /PC 54% OFF
Discounted Price:
₹46 /PC

Quantity:
(9 available)

Weight:
20 g

Total Price:
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DSM Online
(15 customer reviews)
  Punch in your secret key into this numeric matrix keypad. This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad. Check the tutorials tab for links to an Arduino library and example code.
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