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AN2034 - PSoC® 1 - Reading Matrix and Common Bus Keypads | Cypress

AN2034 - PSoC® 1 - Reading Matrix and Common Bus Keypads

Last Updated: 
Aug 18, 2014
Version: 
*E

AN2034 shows how to use PSoC® 1 to read mechanical keypads. It covers matrix and common bus keypads, in both polled and interrupt modes.

Depending on how individual switches are connected, mechanical keypads are commonly available in two forms – matrix and common bus.

PSoC 1 - Reading Matrix and Common Bus Keypads

Example Project

Supported H/W and S/W Supported PSoC1 Devices
PSoC Designer Version
H/W Kit

CY8C20xxx

CY8C21xxx

CY8C22xxx

CY8C23xxx

CY8C24xxx

CY8C27xxx

CY8C28xxx

CY8C29xxx
Yes 5.4 CY3210-PSoCEVAL1   x23, x34, x45 x45 x33 x23A, x94 x43 x x66