原标题：空气净化器

应用领域：智能家居

方案类型：模块板卡

方案概述

应用领域：智能家居

应用场景：基于STM32的空气净化方案，有PM2.5检测，臭氧发生器和负离子发生器功能，可以提供PCBA和ODM整机定制

性能参数：

l 采用STM32F030C8T6芯片作为主控

l 内存20K x 8、64K(64K x 8)

l 外存接口：W25X40CLSNIG

l 1个红蓝双色电源LED指示灯，11个红色LED指示灯

l 5个轻触按键

l 支持2路串口TTL

l ESP8266模块2.4GHz

l 4路继电器

【STM32F030C8T6】

Mainstream ARM Cortex-M0 Value line MCU with 64 Kbytes Flash, 48 MHz CPU

The STM32F030x4/x6/x8/xC microcontrollers incorporate the high-performance ARM®Cortex®-M0 32-bit RISC core operating at a 48 MHz frequency, high-speed embedded memories (up to 256 Kbytes of Flash memory and up to 32 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (up to two I2Cs, up to two SPIs and up to six USARTs), one 12-bit ADC, seven general-purpose 16-bit timers and an advanced-control PWM timer.

The STM32F030x4/x6/x8/xC microcontrollers operate in the -40 to +85 °C temperature range from a 2.4 to 3.6V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.

The STM32F030x4/x6/x8/xC microcontrollers include devices in four different packages ranging from 20 pins to 64 pins. Depending on the device chosen, different sets of peripherals are included. The description below provides an overview of the complete range of STM32F030x4/x6/x8/xC peripherals proposed.

These features make the STM32F030x4/x6/x8/xC microcontrollers suitable for a wide range of applications such as application control and user interfaces, handheld equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms, and HVACs.

Key Features

Core: ARM®32-bit Cortex®-M0 CPU, frequency up to 48 MHz

Memories

16 to 256 Kbytes of Flash memory

4 to 32 Kbytes of SRAM with HW parity

CRC calculation unit

Reset and power management

Digital & I/Os supply: VDD= 2.4 V to 3.6 V

Analog supply: VDDA= VDDto 3.6 V

Power-on/Power down reset (POR/PDR)

Low power modes: Sleep, Stop, Standby

Clock management

4 to 32 MHz crystal oscillator

32 kHz oscillator for RTC with calibration

Internal 8 MHz RC with x6 PLL option

Internal 40 kHz RC oscillator

Up to 55 fast I/Os

All mappable on external interrupt vectors

Up to 55 I/Os with 5V tolerant capability

5-channel DMA controller

One 12-bit, 1.0 μs ADC (up to 16 channels)

Conversion range: 0 to 3.6 V

Separate analog supply: 2.4 V to 3.6 V

Calendar RTC with alarm and periodic wakeup from Stop/Standby

11 timers

One 16-bit advanced-control timer for six-channel PWM output

Up to seven 16-bit timers, with up to four IC/OC, OCN, usable for IR control decoding

Independent and system watchdog timers

SysTick timer

Communication interfaces

Up to two I2C interfaces

Up to six USARTs supporting master synchronous SPI and modem control; one with auto baud rate detection

Up to two SPIs (18 Mbit/s) with 4 to 16 programmable bit frames

Serial wire debug (SWD)

All packages ECOPACK®2

STM32F030C8T6电路原理图

【ESP8266】

低功耗、高集成度的 Wi-Fi 芯片

仅需 7 个外围元器件

超宽工作温度范围：-40°C 至 +125°C

ESP8285 - ESP8266 内封 8 Mbit Flash

ESP8266

低功耗、高集成度的 Wi-Fi 芯片

仅需 7 个外围元器件

超宽工作温度范围：-40°C 至 +125°C

ESP8285 - ESP8266 内封 8 Mbit Flash

32 位 Tensilica 处理器

ESP8266EX 内置超低功耗 Tensilica L106 32 位 RISC 处理器，CPU 时钟速度最高可达 160 MHz，支持实时操作系统 (RTOS) 和 Wi-Fi 协议栈，可将高达 80% 的处理能力留给应用编程和开发。

低功耗

ESP8266EX 专为移动设备、可穿戴电子产品和物联网应用而设计，通过多项专有技术实现了超低功耗。ESP8266EX 具有的省电模式适用于各种低功耗应用场景。

高度集成

ESP8266EX 集成了 32 位 Tensilica 处理器、标准数字外设接口、天线开关、射频 balun、功率放大器、低噪放大器、过滤器和电源管理模块等，仅需很少的外围电路，可将所占 PCB 空间降到最低。

性能稳定

ESP8266EX 的工作温度范围大，且能够保持稳定的性能，能适应各种操作环境。

模组乐鑫的模组产品集成了自主研发的系统级芯片，因此具备强大的 Wi-Fi 和蓝牙功能，以及出色的射频性能。

双核 Wi-Fi & BT/BLE 模组

特性

两个可以单独控制的 CPU 内核，时钟频率可调，范围从 80 MHz 到 240 MHz

+19.5 dBm 天线端输出功率，确保良好的覆盖范围

传统蓝牙支持 L2CAP，SDP，GAP，SMP，AVDTP，AVCTP，A2DP (SNK) 和 AVRCP (CT) 协议

低功耗蓝牙 (BLE) 支持 L2CAP, GAP, GATT, SMP, 和 GATT 之上的 BluFi, SPP-like 协议等

低功耗蓝牙连接智能手机，发送低功耗信标，方便检测

睡眠电流小于 5 μA，适用于电池供电的可穿戴电子设备

集成 4 MB flash

外设包括电容式触摸传感器，霍尔传感器，低噪声放大器，SD 卡接口，以太网，高速 SPI，UART，I2S 和 I2C

通过 RF 认证以及软件协议认证