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Serial Port/Com. Module.(Theare are 6 Products)

Tk. 410
USB to RS-485 converter.
Tk. 199
CH340 USB to ESP8266 ESP-01 Wifi Module Adapter
Tk. 350
FT232RL TTL Converter Module
Tk. 250
USB to TTL CP2102 Converter
Tk. 320
FT232RL chip TTL/CMOS level;RXD / TXD indicator;USB powered,5V / 3.3V.Arduino Compatible Breakout 5V 3.3V.This is a basic breakout board for the FTDI FT232RL USB to serial IC.
Tk. 95
It's a small USB to TTL serial tool, using the PL2303 chip. You can use it to connect some serial device to your PC via USBB port.

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