arduino ch340g - csdn

ch340电路 usb转串口电路 usb转ttl usb连接单片机串口

ch340c的电路设计

ch340下载电路.jpg

使用ch340g的rts和dtr自动下载程序,怎样判断是串口通讯还是下载

ch340c ch9328

usb转ttlch340模块学习手册

ch340连接单片机串口

用ch340转串口,出现unknown device情况!急需大牛解决!谢谢!