Demonstration board accelerates touch-based design

Demonstrating touch applications based on Freescale MPR03x touch-sensor controllers, the Freescale DEMOMPR031 is a standalone board that allows a user to touch two simple, clear buttons and view the response indicated by on-board LEDs.

The MPR031 and MPR032 proximity capacitive touch-sensor controllers are micro-DFN ICs that simplify designing touch applications for headsets, remote controls and other low-power portable products. The devices provide an I²C interface, and are able to manage two sensing electrodes with interrupt functionality or three electrodes if the interrupt is disabled. The devices have a 2mm x 2mm footprint, operate from 1.71V to 2.75V, and draw 8µA when configured for 64ms response time monitoring two electrodes.

The DEMOMPR031 board is delivered complete with an MPR031EP controller IC, two ITO touch buttons, two signal LEDs, an 8-bit MCU, and a board-mounted power switch. The MCU is programmed in Background Debug Mode (BDM), and contacts for the BDM connector are also provided. The board is powered independently using a coin-cell battery.

 

FEATURES Board schematic provided Quick-start guide included Low-power touch-sensor technology Evaluation kit also available

APPLICATIONS Headsets Remote controls Lighting controls Handheld devices

 

 

 

The DEMOMPR031 and KITMPR03XEVM boards are available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

Freescale / MPR03x