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Choose Your Size Quick view

Reference: RBD-984

Heat Shrink Tube

Heat Shrink Tubing 2:1, Eventronic Electrical Wire Cable Wrap Assortment Electric Insulation Heat Shrink Tube Kit (1 pcs) Please Choose Size Below

Price BDT 2
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Reference: RBD-1354

Jumper Wire Single Medium

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Price BDT 3
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470 Ohm 1/4w - Pack of 5 Quick view

Reference: RBD-245

Kiloohm (KΩ) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
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In Stock
Jumper wire 40 Pcs Quick view

Reference: RBD-31

Jumper Wire 40 Pcs Set

3 Types Available 1. Male to Male  2. Male to Female 3. Female-Female

Price BDT 90
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Buzzer Quick view

Reference: RBD-766

Ohm (Ω) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
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Reference: RBD-761

Push Button Switch

Push Button Switch

Price BDT 5
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5 mm Green LED (Pack of 5) Quick view

Reference: RBD-768

5 mm Red LED (Pack of 5)

5 mm Red LED (Pack of 5)

Price BDT 5
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Buzzer Quick view

Reference: RBD-758

BC547 NPN Transistor

BC547 NPN Transistor

Price BDT 2
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On sale! Arduino Uno R3 (Made in Italy) Quick view

Reference: RBD-94

Arduino Uno R3

Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.

Price BDT 609
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Buzzer Quick view

Reference: RBD-755

5 mm Green LED (Pack of 5)

5 mm Green LED (Pack of 5)

Price BDT 5
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All best sellers
3×4 flexible keypad
  • 3×4 flexible keypad
  • 3×4 flexible keypad
  • 3×4 flexible keypad
  • 3×4 flexible keypad

3×4 Flexible Keypad

RBD-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 5 reviews
Average rating: 5/5 - Number of reviews: 5
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
RBD-402
148 Items
Hex keypad
rating
09/10/2021
Fahim Abrar
It is also too much good
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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Reference: RBD-1025

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Reference: RBD-394

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Reference: RBD-995

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Reference: RBD-1324

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Reference: RBD-388

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Reference: RBD-1041

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Reference: RBD-1361

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Reference: RBD-668

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Reference: RBD-280

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