因为过去玩了一段时间庆科的WIFI模块，因为有所关注，最近发现出了一款WIFI + BT的模块：EMW3240
说明使用鸟语有些烦人，
特性：
Consists of a Cortex-M4 microcontroller and an IEEE 802.11 b/g/n chip.
Cortex-M4 core at 100MHz.
2M bytes on-board SPI flash and 512K bytes on-chip flash.
128K bytes RAM.
Single-band 2.4 GHz IEEE 802.11b/g/n.
Support for TurboQAM® (MCS-8 86 Mbps and MCS-9 96 Mbps) HT20, 20 MHz channel bandwidth.
Complies with Bluetooth Core. Specification Version 4.1 with provisions for supporting future specifications.
Bluetooth Class 1 or Class 2 transmitter operation.
Integrated iTR switch supports a single 2.4 GHz antenna shared between WLAN and Bluetooth.
Integrated ARM Cortex-M4 CPU with on-chip memory enables running IEEE802.11 firmware that can be field-upgraded with future features.
Lead-Free / RoHS.
Single power supply voltage 3.3V.
Security:
Hardware WAPI acceleration engine.
AES in WLAN hardware for faster data encryption and IEEE 802.11i compatibility.
WPA–and WPA2-(Personal) support for powerful encryption and authentication.
Reference WLAN subsystem provides Cisco® Compatible Extensions (CCX, CCX 2.0, CCX3.0, CCX 4.0, CCX 5.0).
Reference WLAN subsystem provides Wi–Fi Protected Setup (WPS).
Operating Temperature: -20°C to 70°C.
乐鑫也出了 似乎价格要比庆科更亲民 大概数据吞吐率要低一点
专业从事于在线监测振动、转速、轴振动、位移等，设备管理及故障检测振动诊断系统在线监测点巡检系统-现场动平衡仪-测振仪、便携式测振仪
这个芯片和下游设备的连接，接口跟ESP8266差不多啊
性能上应该跟ESP8266一个档次，但多一个BT,贵点也可以接受
MicroPython中文社区https://micropython.org.cn/forum/
蓝牙4.1的,M4估计这次又是主打超低功耗的,
庆科的产品不错的，他们的技术和销售都非常热情。
现在无线越来越火了
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