Touch sensor is built based on the latest technical solution used in the new series of STM ARM microcontrollers. Keys designed capacitive sensor technologies are extremely sensitive to touch. For my project I used LED dimmer ARM Cortex-M0 STM32F051RBT6, which is up to 18 capacitive sensing channels, linear, rotary and touch. Factor in the selection was superior to other solutions price. A major advantage is a lot of support producer who has released source code handling eg capacitive keys.

Firmware
........\ButtonDemo.bin
........\ButtonDemo.hex
........\HEX2BIN.EXE
........\LinearDemo.bin
........\LinearDemo.hex
PCB
...\BUTTON
...\......\ButtonAllLayersPCB.png
...\......\ButtonBottomPCB.png
...\......\ButtonTopPCB.png
...\CPU
...\...\CPUBottomLayerPCB.png
...\...\CPULayerPCB.png
...\...\CPUTopLayerPCB.png
...\DRIVER
...\......\LEDLayersPCB.png
...\......\LEDTOPLayerPCB.png
...\LINEAR
...\......\TouchAllLayersPCB.png
...\......\TouchBottomLayerPCB.png
...\......\TouchTopLayerPCB.png
Scheme
......\CPUSchemat.png
Source
......\EEPROM
......\......\STM32F0xx_AN4061_FW_V1.0.0
......\......\..........................\Libraries
......\......\..........................\.........\CMSIS
......\......\..........................\.........\.....\CMSIS END USER LICENCE AGREEMENT.pdf
......\......\..........................\.........\.....\Device
......\......\..........................\.........\.....\......\ST
......\......\..........................\.........\.....\......\..\STM32F0xx
......\......\..........................\.........\.....\......\..\.........\Include
......\......\..........................\.........\.....\......\..\.........\.......\stm32f0xx.h
......\......\..........................\.........\.....\......\..\.........\.......\system_stm32f0xx.h
......\......\..........................\.........\.....\......\..\.........\Release_Notes.html
......\......\..........................\.........\.....\......\..\.........\Source
......\......\..........................\.........\.....\......\..\.........\......\Templates
......\......\..........................\.........\.....\......\..\.........\......\.........\arm
......\......\..........................\.........\.....\......\..\.........\......\.........\...\startup_stm32f0xx.s
......\......\..........................\.........\.....\......\..\.........\......\.........\gcc_ride7
......\......\..........................\.........\.....\......\..\.........\......\.........\.........\startup_stm32f0xx.s
......\......\..........................\.........\.....\......\..\.........\......\.........\iar
......\......\..........................\.........\.....\......\..\.........\......\.........\...\startup_stm32f0xx.s
......\......\..........................\.........\.....\......\..\.........\......\.........\system_stm32f0xx.c
......\......\..........................\.........\.....\......\..\.........\......\.........\TrueSTUDIO
......\......\..........................\.........\.....\......\..\.........\......\.........\..........\startup_stm32f0xx.s
......\......\..........................\.........\.....\Documentation
......\......\..........................\.........\.....\.............\CMSIS-SVD_Schema_1_0.xsd
......\......\..........................\.........\.....\.............\CMSIS_CM4_SIMD.htm
......\......\..........................\.........\.....\.............\CMSIS_Core.htm
......\......\..........................\.........\.....\.............\CMSIS_DebugSupport.htm
......\......\..........................\.........\.....\.............\CMSIS_History.htm
......\......\..........................\.........\.....\.............\CMSIS_Logo_Final.jpg
......\......\..........................\.........\.....\.............\CMSIS_System_View_Description.htm
......\......\..........................\.........\.....\Include
......\......\..........................\.........\.....\.......\arm_common_tables.h
......\......\..........................\.........\.....\.......\arm_math.h
......\......\..........................\.........\.....\.......\core_cm0.h
......\......\..........................\.........\.....\.......\core_cm3.h
......\......\..........................\.........\.....\.......\core_cm4.h
......\......\..........................\.........\.....\.......\core_cm4_simd.h
......\......\..........................\.........\.....\.......\core_cmFunc.h
......\......\..........................\.........\.....\.......\core_cmInstr.h
......\......\..........................\.........\.....\index.htm
......\......\..........................\

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