Buy Membrane 3x4 Matrix Keypad + extras ADA419 in Australia – Pakronics®
 
Pakronics

Get the email You Love Reading Subscribe

1

Your cart is empty.

Updating...

Notify me by email when Membrane 3x4 Matrix Keypad + extras becomes available.

Membrane 3x4 Matrix Keypad + extras - Buy - Pakronics®- STEM Educational kit supplier Australia- coding - robotics

Membrane 3x4 Matrix Keypad + extras

$10.73 AUD Inc. GST


SKU ADA419



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.

We include a 7-pin extra-long header strip so you can plug this into a breadboard with ease.

Technical Details

  • 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 );

This will swap the * and # keys and also let you connect to the Arduino to match this image

Shipping rates Australia wide

Australia wide
Express Post* Regular Post Courier
Up to 500 gms $9.79 $6.75 $15.99
Up to 3 kg $15.00 $11.40 $15.99
Up to 5 kg $30.00 $22.11 NA
Above 5 kg
Estimated at checkout

    Shipping rates to New Zealand

    New Zealand
    Australia Post international service
    Up to 500 gms $18.00
    Up to 1 kg $30.00
    Above 1 kg
    Available on request

     

    FAQ:

    • How do I estimate shipping for my order?
      • Add products in the shopping cart and head to the checkout page to estimate the shipping.

    Dispatch time

    Unless expressly agreed otherwise with you, we will not commence delivery of an order until we have received cleared payment of the purchase price in full.

    All orders placed before 11 am AEST (Monday to Friday) will ordinarily be processed on the same day.

    We will endeavour to ship the Products by the applicable time indicated on the website, but all times are indicative only.  All shipping times are dispatch times only, and actual delivery dates will depend on the shipping method chosen, delivery address and delivery service provider. 

    Note- Please make a note during purchase if you require any item urgently. However we cannot guarantee that we will be able to comply with any request

    *Go to Australia post delivery time calculation to get various Australia post service in your area please use our shipping postcode Rosanna, 3074 as the "from" address - https://auspost.com.au/parcels-mail/delivery-times.html?ilink=tools-open-deliv-times.

    Shipping Destinations

    We ship all products throughout mainland Australia, Tasmania and New Zealand - Including Darwin, Melbourne, Sydney, Tasmania, Adelaide, Brisbane, Perth, all metro and regional areas but do not deliver to areas in Australia where the Australia Post delivery network is not available. 

    Check Express shipping delivery coverage area at - http://auspost.com.au/parcels-mail/delivery-areas.html

    Receipt of deliveries

    Deliveries to post office boxes are not permitted where delivery is by courier. If delivery is by courier and nobody is available at the delivery address to accept delivery when delivery is attempted then the courier may either:

    • leave the relevant parcel at the unattended address (the courier will do so if specified in your delivery requirements); or
    • re-attempt delivery at a later time or date, in which case we may charge you an additional re-delivery fee. 

    Note that if a delivery is left unattended at the shipping address and is subsequently stolen then the theft is your responsibility, not ours.