Creating Matrix Keypad

[Anonymous]

Hello all,

   

Greetings for the day.

   

      I am trying to configure a 4x4 Matrix Keypad using PSoC Creator 3.2 with the help of PSoC 4 Pioneer kit (i. e. mentioned to ACK device used).

   

While doing that I have done some part, just wanted if I am on right track or not.

   

As of yet my test board with 4x4 Matrix Keys implemented hasn't arrived, I'm unable to check it's o/p to verify the program. That's why I wanted to check whether I'm going ok or not.

   

I'm attaching my project down here, please go through it & let me know my status; guide me if I'm going wrong.

   

If anyone have 4x4 board to test it, please do that & convey the results.

   

Waiting for your positive response & valuable guidance.

   

Thanks & Regards-

   

Amit

[rola_264706]

AMraje: Here are some design files for a keyboard using Capsense.  and a Schematic for one.

[Anonymous]

Hello there,

   

I also wanted you to have look at the code that I have written; actually I wanted to have that checked.

   

If you have simpler & shorter way to do that, please guide.

   

Thanks & Regards-

   

Amit

[Anonymous]

Hello all,

   

Please guide me coding this 4x4 Matrix. Please tell me,

   

Will I be able to read the Button press with API- CapSense_GetMatrixButtonPos(uint32 widget, uint* pos)?

   

Do I need to write it for each of the BTN i.e. 16 times as it was with Normal BTNs scanned individually? Or calling it once will work; while assigning particular o/p's to each BTN, as I have done in my code (Please ref. it in attached project & guide accordingly)?

   

In this API, CapSense_GetMatrixButtonPos(uint32 widget, uint* pos)- the POINTER * pos will return 2 values, namely pos[0]=Column position & pos[1]=Row position. I want to ask, if I wish to check their Pos by row & column how can I do that? I mean I wish to have it indicating o/p LED's for corresponding ROW & COL @ BTN pressed.

   

Please reply, waiting.

   

Thanks & Regards-

   

Amit