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USB_To_TTL_CH340

自制基于ch340的多功能TTL下载器

本下载器特点:

1,引出DTR引脚,方便给Arduino的芯片及板子下载程序;

2,一键冷启动,按下按键5V侧的GND断开,方便给51单片机下载程序,

3,TTL信号线使用二极管电阻防止冷启动时断电不彻底。

原理图

typec版

usb版

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自制基于ch340的多功能TTL下载器

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