4×4 Matrix 16 Push Button Keyboard Module

(1 customer review)
Availability:

In stock


SKU: 400497
  1. 4×4 Matrix Keyboard Module with 16 buttons
  2. Small in size and hence Save space
  3. More convenient to use
  4. Expanded development application modules for single chip
  5. With 16 keys and 8 pin
  6. Keypad dimensions: 39mm x 43mm x 6mm

 99.00

(inc GST)

₹ 83.9 (+18% GST extra)

In stock

Prices shown above are Inclusive of GST

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Brand: Generic
Category: Electronic Switches/Keypads

The 4 x 4 matrix keypad usually is used as input in a project. It has 16 keys in total, which means the same input values. The 4 x 4 Matrix Keypad Module is a matrix non-encoded keypad consisting of 16 keys in parallel. The keys of each row and column are connected through the pins outside – pin R1-R4 as labeled beside control the rows, when L1-L4, the columns.

A 4×4 matrix keypad consisting of microswitch buttons. The module has four holes 3mm (M3) holes for mounting. The pin designations on each PCB are shown on each PCB. Four pins are thus used as an ‘x’ coordinate and the other 4 as a ‘y’ coordinate.
The module is already equipped with soldered pin headers (rotated 90 degrees).

How it Works:

First test whether any key is pressed down. Connect power to rows, so they are High level. Then set all the rows R1-R4 as Low and then detect the status of the columns. Any column of Low indicates there is key pressing and that the key is among the 4 keys of the column. If all columns are High, it means no key is pressed down. Next, locate the key. Since the column in which the pressed key lies is identified, knowing the line would finalize the testing. Thus, set the rows as Low in turns until any is unveiled accordingly – other rows will still be High.
Now the row can be identified. Detect the status of each column in turns. The column tested Low is the one intersecting with the line – their cross point is just the key pressed.

Note: This keyboard module is available in red and black colours of push-button, we will ship it randomly.


Features:

  1. 4×4 Matrix Keyboard Module with 16 buttons
  2. Small in size and hence Save space
  3. More convenient to use
  4. Expanded development application modules for single chip
  5. With 16 keys and 8 pin

Package Includes:

1 x 4×4 Matrix 16 Push Button Keyboard Module

Switch Type

Momentary

Pin Spacing (mm)

2.54

Length (mm)

57

Width (mm)

33

Height (mm)

6

Weight (gm)

10

Shipment Weight

0.015 kg

Shipment Dimensions

8 × 6 × 2 cm

15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.


What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 1 review

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  1. Madhab Sharma (verified owner)

    It’s good. It is quite small though. But it does the work! About its functionality, it’s good.
    The problem I faced was when I tried to desolder the header pins. They firmly fit the board. To its little difficult to desolder them.

    Madhab Sharma

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