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Choose Your Size Quick view

Reference: 984

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Jumper wire 40 Pcs Quick view

Reference: 31

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Reference: 94

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5 mm Green LED (Pack of 5)

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3×4 flexible keypad
  • 3×4 flexible keypad
  • 3×4 flexible keypad
  • 3×4 flexible keypad
  • 3×4 flexible keypad

3×4 Flexible Keypad

402
This keypad has 12 buttons, arranged in a 3×4 grid.
It’s made of a thin, flexible membrane material 
The keys are connected into a matrix, so you only
need 7 microcontroller pins (3-columns and 4-rows)
to connect the key pad.
BDT 95
rating Read the 4 reviews
Average rating: 5/5 - Number of reviews: 4
Quantity
In-Stock

  • Store Pickup Available! Store Pickup Available!
  • Free Ship Over 5000 BDT Free Ship Over 5000 BDT
  • Quality Product Quality Product
  • No Warranty No Warranty
  • No Replacement No Replacement
Description
Product Description
Punch in your secret key into this numeric matrix keypad. This keypad has 12 buttons, 
arranged in a telephone-line 3×4 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.
We include a 7-pin extra-long header strip so you can plug this into a
breadboard with ease.
  • Weight: 7.5 grams
  • Keypad dimensions: 70mm x 77mm x 1mm (2.75″ x 3″ x 0.035″)
  • Length of cable + connector: 85mm
  • 7-pin 0.1″ pitch connector
There is a very nice Matrix Keypad Arduino library that works great with this item. The only thing we suggest is to change the initialization code in the examples to this:
#include "Arduino.h" #include "Keypad.h" const byte ROWS = 4; //four rows const byte COLS = 3; //three columns char keys[ROWS][COLS] = { {'1','2','3'}, {'4','5','6'}, {'7','8','9'}, {'*','0','#'} }; byte rowPins[ROWS] = {8, 7, 6, 5}; //connect to the row pinouts of the keypad byte colPins[COLS] = {4, 3, 2}; //connect to the column pinouts of the keypad Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
Product Details
402
163 Items
Good Quality Product.
rating
06/04/2021
Noyon Ahmed
Good Quality Product.
Good
rating
25/11/2020
Bappy
Product was good
3×4 Flexible Keypad
rating
17/11/2020
Mohitosh Pramanik
Good
good
rating
18/12/2019
Faisal
ok
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