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4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU
4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU 4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU 4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU 4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU 4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU 4x4 Matrix 16 Keypad Keyboard Module 16 Button MCU

4×4 Matrix 16 Keypad Keyboard Module 16 Button MCU

Availability: Out stock
SKU: 420106

QUICK OVERVIEW

  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

 43.00

(inc GST)

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Brand: Generic

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 labelled 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 a 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.


Specifications and 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
  6. Keypad dimensions: 39mm x 43mm x 6mm
  7. 8-pin 2.54mm pitch connector

Package Includes:

1 x 4×4 Matrix 16 Keypad Keyboard Module 16 Button MCU

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.

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