AN2843 STEVAL-IHI002V1，电容，触摸感应键盘上的STMPE1208S

AN2843 STEVAL-IHI002V1，电容，触摸感应键盘上的STMPE1208S

AN2843
Application note
STEVAL-IHI002V1, capacitive touch-sensing
keyboard based on the STMPE1208S

Introduction
The STEVAL-IHI002V1 is a demonstration board designed to modernize, or even fully
replace, a conventional mechanical keyboard.
The demonstration board is based on the STMPE1208S 12-bit GPIO expander with an
additional 12-channel capacitive sensor, which is capable of interfacing a main MCU
through an IC bus. The demonstration board is designed to work as a daughterboard for
the STEVAL-IHI001V1 demon