مدار تبدیل USB به RS232C
وسایل مورد نیاز
* DB9 male socket
* 2 x 100ohm resistors
* 1uF Electrolytic Capacitor (16VW or higher).
* 3mm RED LED
* 3mm GREEN LED
* MAX235 Intergrated Circuit
* FTDI FT8U232AM9
http://www.lennard.net.nz/archive/usbtors232.jpg
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