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Original price was: โน59.00.โน45.00Current price is: โน45.00. Incl.GST / โน38.14 Excl.GST
โข 4ร4 Matrix Keyboard Module with 16 buttons
โข Small in size and hence Save space
โข More convenient to use
โข Expanded development application modules for single chip
โข With 16 keys and 8 pin
4 in stock
4 in stock
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Description
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 โ pin R1-R4 as labeled beside control the rows, when L1-L4, the columns.
A 4ร4 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 โxโ coordinate and the other 4 as a โyโ coordinate.
The module is already equipped with soldered pin headers (rotated 90 degrees).
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 โ 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 โ their cross point is just the key pressed.
Features
- 4ร4 Matrix Keyboard Module with 16 buttons
- Small in size and hence Save space
- More convenient to use
- Expanded development application modules for single chip
- With 16 keys and 8 pin
Specifications
Package Includes:
- 4*4 Matrix Keypad Keyboard Module โ 1PC
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In stock
Ishana Anand (verified owner) โ
Very fast shipping, arrived quicker than I thought, everything in perfect condition, no damage and complete with accessories. I have tested the machine and everything works fine. This machine is really nice, I love it. I will recommend it to my friends!
Dinv Saxena (verified owner) โ
The machine came a few days earlier than stated. Very well packaged and the installation also went smoothly. After I executed the commands and calibrated the device, everything went as it should and the machine correctly found the position of the laser head. I hope that it will remain stable in the future and that the values will remain as it is calibrated. Everything works correctly I am really impressed with the performance of the machine and the results of the laser work.
Mukesh Rana (verified owner) โ
I did find that there was some smell while using it and found it would be better to use this engraver in a ventilated area. I think it should be necessary to buy another air assist to direct the airflow to the outside, the effect will be better!
LakhanGarg (verified owner) โ
Perfect machine, well packaged, great engraving and cutting, worth buying!
Ramavati Das (verified owner) โ
This machine is the best Iโve ever seen, great quality, beautiful packaging, top notch engraving and cutting, thanks MechBlock!
Ankush Pandey (verified owner) โ
Easy assembly, directions were very easy to follow. Download light burn and easy to setup. Tested it out and did my Sasquatch for my cutting boards.
Mira Pandey (verified owner) โ
Very nice machine. With Lightburn very easy to work with it.
Farid Parihar (verified owner) โ
I am very satisfied with the engraving machine, I am a beginner and would like to familiarize myself with this equipment. It definitely fits the purpose. Looking forward to the effect!
Gurmeet Sandhu (verified owner) โ
Equipped with detailed assembly instructions, making assembly very easy to complete in 30 minutes. This laser machine is also suitable for inexperienced users. I am very satisfied!
Tanay Kapoor (verified owner) โ
Dipali Kaushik (verified owner) โ
Easy assembly, directions were very easy to follow. Download light burn and easy to setup. Tested it out and did my Sasquatch for my cutting boards.
Hansika Ganguly (verified owner) โ
I am a beginner and this laser engraver is equipped with everything I need. I USED GBRL SOFTWARE WITH A MAC SYSTEM AND THE CONNECTION WAS EASY. When cutting wooden blocks, I find it as easy as carving planks. And the effect is not bad, it is a good laser machine.
Sushil Nadar (verified owner) โ
Fast shipping and perfectly packaged. The laser machine is of high quality, operated according to the instructions, even beginners can master it quickly, everything is as described, it is great.
Murali Jain (verified owner) โ
I did find that there was some smell while using it and found it would be better to use this engraver in a ventilated area. I think it should be necessary to buy another air assist to direct the airflow to the outside, the effect will be better!
Nisha Katiyar (verified owner) โ
This machine is the best Iโve ever seen, great quality, beautiful packaging, top notch engraving and cutting, thanks MechBlock!
Sushama Sahani (verified owner) โ
I am very satisfied with the engraving machine, I am a beginner and would like to familiarize myself with this equipment. It definitely fits the purpose. Looking forward to the effect!
Rajni Raghav (verified owner) โ
Very fast shipping, arrived quicker than I thought, everything in perfect condition, no damage and complete with accessories. I have tested the machine and everything works fine. This machine is really nice, I love it. I will recommend it to my friends!
Bhavnish Gupta (verified owner) โ
Perfect machine, well packaged, great engraving and cutting, worth buying!
Ramachandra Jain (verified owner) โ
The machine came a few days earlier than stated. Very well packaged and the installation also went smoothly. After I executed the commands and calibrated the device, everything went as it should and the machine correctly found the position of the laser head. I hope that it will remain stable in the future and that the values will remain as it is calibrated. Everything works correctly I am really impressed with the performance of the machine and the results of the laser work.
Candy Goel (verified owner) โ
Very nice machine. With Lightburn very easy to work with it.
Chand Khan (verified owner) โ
Easy assembly, directions were very easy to follow. Download light burn and easy to setup. Tested it out and did my Sasquatch for my cutting boards.
Valin Rawat (verified owner) โ
Very fast shipping, arrived quicker than I thought, everything in perfect condition, no damage and complete with accessories. I have tested the machine and everything works fine. This machine is really nice, I love it. I will recommend it to my friends!
Pushpa (verified owner) โ
The machine came a few days earlier than stated. Very well packaged and the installation also went smoothly. After I executed the commands and calibrated the device, everything went as it should and the machine correctly found the position of the laser head. I hope that it will remain stable in the future and that the values will remain as it is calibrated. Everything works correctly I am really impressed with the performance of the machine and the results of the laser work.
Shuneeta Pandey (verified owner) โ
Very nice machine. With Lightburn very easy to work with it.
Shalini Dwivedi (verified owner) โ
Equipped with detailed assembly instructions, making assembly very easy to complete in 30 minutes. This laser machine is also suitable for inexperienced users. I am very satisfied!
Deshal Shinde (verified owner) โ
I am a beginner and this laser engraver is equipped with everything I need. I USED GBRL SOFTWARE WITH A MAC SYSTEM AND THE CONNECTION WAS EASY. When cutting wooden blocks, I find it as easy as carving planks. And the effect is not bad, it is a good laser machine.
Bishvajit Gupta (verified owner) โ
The machine came a few days earlier than stated. Very well packaged and the installation also went smoothly. After I executed the commands and calibrated the device, everything went as it should and the machine correctly found the position of the laser head. I hope that it will remain stable in the future and that the values will remain as it is calibrated. Everything works correctly I am really impressed with the performance of the machine and the results of the laser work.
Rodas Kapoor (verified owner) โ
Fast shipping and perfectly packaged. The laser machine is of high quality, operated according to the instructions, even beginners can master it quickly, everything is as described, it is great.
Mahesh (verified owner) โ
I did find that there was some smell while using it and found it would be better to use this engraver in a ventilated area. I think it should be necessary to buy another air assist to direct the airflow to the outside, the effect will be better!
Mousumi Jha (verified owner) โ
Anita Kapoor (verified owner) โ
I am a beginner and this laser engraver is equipped with everything I need. I USED GBRL SOFTWARE WITH A MAC SYSTEM AND THE CONNECTION WAS EASY. When cutting wooden blocks, I find it as easy as carving planks. And the effect is not bad, it is a good laser machine.
Sandeep Sahu (verified owner) โ
Hari Gopal (verified owner) โ
This machine is the best Iโve ever seen, great quality, beautiful packaging, top notch engraving and cutting, thanks MechBlock!
Aayod Garg (verified owner) โ
Perfect machine, well packaged, great engraving and cutting, worth buying!
Shantay Mishra (verified owner) โ
I am very satisfied with the engraving machine, I am a beginner and would like to familiarize myself with this equipment. It definitely fits the purpose. Looking forward to the effect!
Jaladi Gupta (verified owner) โ
Fast shipping and perfectly packaged. The laser machine is of high quality, operated according to the instructions, even beginners can master it quickly, everything is as described, it is great.
Mamata Das (verified owner) โ
Very nice machine. With Lightburn very easy to work with it.
Amita Choudhary (verified owner) โ
I did find that there was some smell while using it and found it would be better to use this engraver in a ventilated area. I think it should be necessary to buy another air assist to direct the airflow to the outside, the effect will be better!
Harsha Pandey (verified owner) โ
Equipped with detailed assembly instructions, making assembly very easy to complete in 30 minutes. This laser machine is also suitable for inexperienced users. I am very satisfied!
Devansh Mishra (verified owner) โ
Fast shipping and perfectly packaged. The laser machine is of high quality, operated according to the instructions, even beginners can master it quickly, everything is as described, it is great.
Iravaj Dwivedi (verified owner) โ
Easy assembly, directions were very easy to follow. Download light burn and easy to setup. Tested it out and did my Sasquatch for my cutting boards.
Mallikarjuna Iyer (verified owner) โ
Very fast shipping, arrived quicker than I thought, everything in perfect condition, no damage and complete with accessories. I have tested the machine and everything works fine. This machine is really nice, I love it. I will recommend it to my friends!
Ranjita Dwivedi (verified owner) โ
Nagamma Khan (verified owner) โ
Jaiden Dwivedi (verified owner) โ
Kavan Pandey (verified owner) โ
BimalaSood (verified owner) โ
Era Jain (verified owner) โ
Aradhana Narayan (verified owner) โ