应用领域：智能家居

方案类型：成品

主控芯片：STM;

方案概述

一、智能家居网关成熟方案：

1.无线控制芯片采用韩国进口zigbee MG2470芯片，支持最大200个节点连接，节点之间室内通信距离30米至80米范围，节点级联时范围更大。

2.主控芯片采用STM32F103CBT6芯片，主频72M，功能强大。

3.板载RTC实时时钟电路，网络不稳定或者离线时也可以定时控制各种设备。

4.WIFI模块支持带路由器功能的模块、以及单WIFI smartconfig类型的WIFI模块，WIFI模块插针位支持多种类型芯片的模块，例如：RT5350、MT7688、MT7681、ESP2688等串口透传的WIFI模块，模块更换灵活方便，适合二次开发。

5.WIFI模块自带公有云端，可定制私有云端以及接入各种语音控制的云端，例如：ECHO音箱、阿里小智、京东叮咚音箱，也可以接入QQ物联、微信小程序、微信公众号等平台。

6.网关固件支持后台自动或手动在线升级，业务功能扩展性强。

7.该方案成热稳定，365天*24小时稳定运行不死机。

二、合作方式：

1.出售已有现成方案。

2.定制开发方案。

3.可包含整套智能家居产品方案出售或开发、PCBA出售或开发、成品出售或开发，其中包含APP(Android和Ios)出售及开发。

【STM32F103CBT6】

Mainstream Performance line, ARM Cortex-M3 MCU with 128 Kbytes Flash, 72 MHz CPU, motor control, USB and CAN

The STM32F103xx medium-density performance line family incorporates the high-performance ARM®Cortex®-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories (Flash memory up to 128 Kbytes and SRAM up to 20 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer two 12-bit ADCs, three general purpose 16-bit timers plus one PWM timer, as well as standard and advanced communication interfaces: up to two I2Cs and SPIs, three USARTs, an USB and a CAN.

The devices operate from a 2.0 to 3.6 V power supply. They are available in both the –40 to +85 °C temperature range and the –40 to +105 °C extended temperature range. A comprehensive set of power-saving mode allows the design of low-power applications.

The STM32F103xx medium-density performance line family includes devices in six different package types: from 36 pins to 100 pins. Depending on the device chosen, different sets of peripherals are included, the description below gives an overview of the complete range of peripherals proposed in this family.

These features make the STM32F103xx medium-density performance line microcontroller family suitable for a wide range of applications such as motor drives, application control, medical and handheld equipment, PC and gaming peripherals, GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms, and HVACs.

Key Features

ARM® 32-bit Cortex® -M3 CPU Core

72 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access

Single-cycle multiplication and hardware division

Memories

64 or 128 Kbytes of Flash memory

20 Kbytes of SRAM

Clock, reset and supply management

2.0 to 3.6 V application supply and I/Os

POR, PDR, and programmable voltage detector (PVD)

4-to-16 MHz crystal oscillator

Internal 8 MHz factory-trimmed RC

Internal 40 kHz RC

PLL for CPU clock

32 kHz oscillator for RTC with calibration

Low-power

Sleep, Stop and Standby modes

VBAT supply for RTC and backup registers

2 x 12-bit, 1 μs A/D converters (up to 16 channels)

Conversion range: 0 to 3.6 V

Dual-sample and hold capability

Temperature sensor

DMA

7-channel DMA controller

Peripherals supported: timers, ADC, SPIs, I2 Cs and USARTs

Up to 80 fast I/O ports

26/37/51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

Debug mode

Serial wire debug (SWD) & JTAG interfaces

7 timers

Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

16-bit, motor control PWM timer with dead-time generation and emergency stop

2 watchdog timers (Independent and Window)

SysTick timer 24-bit downcounter

Up to 9 communication interfaces

Up to 2 x I2 C interfaces (SMBus/PMBus)

Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)

Up to 2 SPIs (18 Mbit/s)

CAN interface (2.0B Active)

USB 2.0 full-speed interface

CRC calculation unit, 96-bit unique ID

Packages are ECOPACK®

STM32F103CBT6电路原理图

【2.4g无线芯片MG2470】

主要参数：

协议：兼容IEEE802.15.4，Zigbee，RF4CE

工作频段：2400MHz～2483.5MHz

工作电压：1.8V /2.0～3.6V (Max3.6V)内含电压检测

灵敏度：-99dBm@250Kbps

发射功率范围：-20 ～ +9.6dBm

数据速率：250kbps、31.25K～1M

Tx工作电流：25 mA@0dBm, 43mA @ +9.6dBm

Rx 工作电流：25 mA

睡眠电流：< 1uA

调制方式：O-QPSK+DSSS

邻频抑制：30 dB

间频抑制：50 dB

IR modulator：有

RSSI功能：digital RSSI

MCU:8051

Flash memory：64Kb

Data memory：6Kb

FIFO buffer：256(Tx)+256(Rx)Byte

语音编码：u-law/a-law/ADPCM格式自动编解码

Power mode：4

PWM通道：5

带AES-128加密解密引擎

自动CRC-16计算、校检

内置VCO/LNA/PA

ISP在线系统编程

外部时钟输出，可选500KHz,1/2/4/8/16/32M

系统用32M晶振

128B CPU专用寄存器

4路12位 ADC

sleep timer 32kHz RC振荡器

外部Rx/Tx高频开关，无需外部滤波器

内置VCO/LNA/PA

UART，12C，SPI，GPIO, 12S

工作环境温度：-40-+85℃;