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

Last Updated: 08/18/2014
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

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Related Files

    File Title Language File Size Last Updated
      AN2034.pdf English 622 KB 08/06/2014
      AN2034.zip English 1 MB 08/06/2014
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Spec No: 001-40409; Sunset Owner: ARVI; Secondary Owner: GULA; Sunset Date: 06/15/20

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Spec No: 001-40409; Sunset Owner: ARVI; Secondary Owner: GULA; Sunset Date: 06/15/20