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Is there an IC that works like the PL2303 for TTL TO USB and can connect to android device with driver? I have search a lot but I did not find such a thing.

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Why can't you simply use the PL2303? it's still manufactured and quite available AFAIK. Another hugely popolar USB/TTL serial bridge it the FTDI FT232 (many different versions, also bootlegged ones)

As for the Android support you could look at https://github.com/mik3y/usb-serial-for-android, it should handle many chips (included the PL2303)

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  • \$\begingroup\$ FT232 isn't supported by android driver. \$\endgroup\$ – kazem pch Feb 8 at 5:21
  • \$\begingroup\$ i can't find an original ic in iran , i bought several pl2303 but it does not work. \$\endgroup\$ – kazem pch Feb 8 at 6:35

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