Introduction
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SLAU758 – January 2018
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Copyright © 2018, Texas Instruments Incorporated
BOOSTXL-CAPKEYPAD Capacitive Touch BoosterPack Plug
‑
in Module
1
Introduction
The BOOSTXL-CAPKEYPAD is an easy-to-use evaluation module for the
MSP430FR2522
capacitive-
touch-sensing microcontroller. This BoosterPack module enables you to extend your design for a
LaunchPad development kit by adding a 12-key capacitive touch numeric keypad with LED back-lighting
and proximity wakeup. Don't have a LaunchPad development kit? The BOOSTXL-CAPKEYPAD can also
be used as a simple CapTIvate technology evaluation module when coupled with the CAPTIVATE-PGMR
for interfacing to a host PC running the CapTIvate Design Center. It is even possible to bypass the
onboard keypad and connect up to three external capacitive sensors to the BOOSTXL-CAPKEYPAD to
test out your own sensor design concepts.
Figure 1. BOOSTXL-CAPKEYPAD
1.1
Scope
This getting started guide provides a brief overview of how the BOOSTXL-CAPKEYPAD can be used. The
full detailed EVM user's guide is available within the CapTIvate Design Center integrated documentation.
The latest version of the user's guide is also available online within the
CapTIvate Technology Guide
.
1.2
Using the BOOSTXL-CAPKEYPAD
While the BOOSTXL-CAPKEYPAD can be operated in a stand-alone fashion by applying external power
directly, it is most commonly used with either a host Launchpad development kit or the CAPTIVATE-
PGMR module.
1.2.1
Using the BOOSTXL-CAPKEYPAD With a LaunchPad Development Kit
The BOOSTXL-CAPKEYPAD can be used with a host LaunchPad development kit (such as the MSP-
EXP430F5529LP) to add capacitive touch keypad functionality to a new or existing design based on a
LaunchPad development kit. This use case enables the creation of a larger system in which the
BOOSTXL-CAPKEYPAD plays an HMI role.
