原标题：家用语音识别触摸开关面板方案

　　方案详情

　　核心芯片型号：PIC16F883

　　本方案使用于86开关面板，可直接替换，无需重新走线。表面钢化玻璃，美观大方，有夜光功能，触摸按键和语音双控制，无触电危险。符合3C强制认证，采用阻燃外壳，单火线低功耗供电设计。

　　应用场合与方案优势：

　　对于已经装修完毕的家庭，可直接替换原有的开关面板，接好线以后就能对其进行控制了。语音控制科技感强，识别率高，属于非特定人声识别技术，无需学习特定人的声音。市面上只有触摸开关面板或者是触摸带无线控制的开关面板，对于这种语音控制的面板还是空白，并且也可以加上无线控制的功能，实现和其他智能家居设备的联网。

　　【PIC16F883】

　　Features:

　　Factory calibrated to ±1%

　　Software selectable frequency range of 8 MHz to 32 kHz

　　Software tunable

　　Two-Speed Start-Up mode

　　Fail-safe clock monitoring for critical applications

　　Clock mode switching during operation for low-power operation

　　Device Overview

　　Summary

　　This powerful yet easy-to-program (only 35 single word instructions) CMOS FLASH-based 8-bit microcontroller packs Microchip's powerful PIC® architecture into a 28 pin package.The PIC16F883 features 256 bytes of EEPROM data memory, self programming, an ICD, 2 Comparators, 11 channels of 10-bit Analog-to-Digital (A/D) converter, 1 capture/compare/PWM and 1 Enhanced capture/compare/PWM functions, a synchronous serial port that can be configured as either 3-wire Serial Peripheral Interface (SPI™) or the 2-wire Inter-Integrated Circuit (I²C™) bus and an Enhanced Universal Asynchronous Receiver Transmitter (EUSART). All of these features make it ideal for more advanced level A/D applications in automotive, industrial, appliances or consumer applications.

　　Additional Features

　　Special Microcontroller Features:

　　Precision Internal Oscillator:

　　Factory calibrated to ±1%

　　Software selectable frequency range of 8 MHz to 32 kHz

　　Software tunable

　　Two-Speed Start-Up mode

　　Fail-safe clock monitoring for critical applications

　　Clock mode switching during operation for low-power operation

　　Power-Saving Sleep mode

　　Power-on Reset (POR)

　　Selectable Brown-out Reset (BOR) voltage

　　Extended Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation

　　In-Circuit Serial Programming™ (ICSP™) via two pins

　　In-Circuit Debug (ICD) via two pins

　　High-endurance Flash/EEPROM cell:

　　100,000 erase/write cycle enhanced Flash program memory, typical

　　1,000,000 erase/write cycle data EEPROM memory, typical

　　Data EEPROM retention > 40 years

　　Self-reprogrammable under software control

　　Programmable code protection

　　Peripheral Features:

　　Device Features:

　　1 input only pin

　　25 I/O

　　High sink/source current 25 mA

　　Interrupt-on-pin change option

　　Timers:

　　TMR0: 8-bit timer/counter with 8-bit prescaler

　　TMR1 enhanced: 16-bit timer/counter with prescaler, External Gate Input mode and dedicated low-power 32 kHz oscillator

　　TMR2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler

　　Capture/Compare/PWM (CCP) module

　　Enhanced Capture/Compare/PWM (ECCP) module with auto-shutdown and PWM steering

　　Master Synchronous Serial Port (MSSP) module SPI™ mode, I2C™ mode with address mask capability

　　Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) module:

　　Supports RS-485, RS-232 and LIN compatibility

　　Auto-Baud Detect

　　Auto-wake-up on Start bit

　　Ultra Low-Power Wake-up (ULPWU)

　　Analog Features:

　　10-bit 11 channel Analog-to-Digital (A/D) Converter

　　2 Analog Comparator modules with:

　　Programmable on-chip Voltage Reference (CVREF) module (% of VDD)

　　Fixed 0.6 Vref

　　Comparator inputs and outputs externally accessible

　　SR Latch mode

　　Parametrics

　　Name

　　Value

　　Program Memory Type

　　Flash

　　Program Memory Size (KB)

　　7

　　CPU Speed (MIPS/DMIPS)

　　5

　　SRAM Bytes

　　256

　　Data EEPROM/HEF (bytes)

　　256

　　Digital Communication Peripherals

　　1-UART, 1-SPI, 1-I2C1-MSSP(SPI/I2C)

　　Capture/Compare/PWM Peripherals

　　2 Input Capture, 1 CCP, 1 ECCP,

　　Timers

　　2 x 8-bit, 1 x 16-bit

　　ADC Input

　　11 ch, 10-bit

　　Number of Comparators

　　2

　　Temperature Range (C)

　　-40 to 125

　　Operating Voltage Range (V)

　　2 to 5.5

　　Pin Count

　　28