机板串口USBTTLCH340G￥2.764去看看欣薇电子发布了USB转串口下载器线USB转TTLCH340G模块RS232升级/刷机板线PL2303机板串口USBTTLCH340G￥4.80去看看两雪旗舰店发布了USB转串口下载器线USB转TTLCH340G模块RS232升级/刷机板线PL2303适用UNOWiFiATmegamemory￥18.21去看看勇泰发电子发布了适用UNOWiFi R3 ATmega328P+ESP8266 (32Mb memory)USB-TTLCH340G芯片开发内存ATMEGAWIFIR￥237.60去看看拂羽能源电子科技发布了WIFIR3ATMEGA2560+ESP8266（32MB内存USB-TTLCH340G芯片开发板
