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      MAX3232 RS232 To TTL Serial Port Converter Module DB9 Connector MAX232 For Arduino
      MAX3232 RS232 To TTL Serial Port …
      A
      Amazon.com
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      10Pcs Diymore TTL Serial Port To RS485 Converter Module With Cable For Arduino
      10Pcs Diymore TTL Serial Port To RS…
      A
      AliExpress US
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      MAX3232 RS232 To TTL Serial Port Converter Module DB9 Connector MAX232 For Arduino
      MAX3232 RS232 To TTL Serial Port …
      A
      Aliexpress
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      1Pcs New FT232RL USB To Serial Port Arduino Downloader USB TO 232
      1Pcs New FT232RL USB To Serial Po…
      E
      eBay.com
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      1-10PCS FOR Arduino FOR UNO R3 Development Board FT232 CH340 Serial Port Driver MEGA328PB Chip
      SALE
      1-10PCS FOR Arduino FOR UNO R3 D…
      $2.07
      A
      Aliexpress
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      Bluetooth Serial Port Wireless Data Module Compatible SPP-C With HC-06 Arduino Bluetooth 2.1 Module
      Bluetooth Serial Port Wireless Data …
      A
      Alexnld.com
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      CH340G USB To TTL Module For Ard…
      Walmart
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      Ch340g To Ttl Rs232 Serial 5V Usb C…
      E
      eBay
      delivery truckFree shipping
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      10Pcs Diymore TTL Serial Port To RS…
      A
      Aliexpress
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      Yucurem CP2102 6-In-1 USB-UART U…
      Walmart
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      1-10Pcs Serial Port Mini RS232 To T…
      A
      Aliexpress
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      MAX232 RS232 To TTL Converter Ad…
      A
      Amazon.com
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      Husxh 0.96Inch Serial Port Screen M…
      W
      Walmart
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      RS232 TTL HC-06 Wireless Bluetoot…
      A
      Alexnld.com
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      Hiletgo 2.2" ILI9225 SPI Serial Port 1…
      A
      Amazon.com
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      CH340 CH340E Serial Port Modules …
      $6.11
      A
      Aliexpress
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      RS232 TTL232 Relay Controller DC 1…
      U
      US eBay
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      1/3PCS MAX3232 RS232 To TTL Seri…
      $0.85
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      Aliexpress
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      MAX3232 RS232 To TTL Serial Port …
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      Alibaba.com
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      5Pcs RS232 TTL HC-06 Wireless Blu…
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      Alexnld.com
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      10PCS IIC I2C Serial Interface Board …
      U
      US eBay
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      PL2303TA Download Cable USB To …
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      eBay.com
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      Arduino 1602LCD Display IIC/I2C Seri…
      E
      eBay.com
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      4Bit UART TTL Serial Port Digital Tub…
      U
      US eBay
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      IIC I2C TWI SP Serial Interface Modul…
      A
      Amazon.com
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      ACEIRMC 3 Pcs HC-05 RS232 Modul…
      I
      ibspot
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      3.5 Inch 320X480 SPI TFT Serial Por…
      A
      Aliexpress
      delivery truckFree shipping
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      2PCS IIC I2C Serial Interface Board …
      U
      US eBay
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      TTL To RS485 Expansion Board UAR…
      A
      Alibaba.com
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      UMLIFE 3Pcs TTL To RS232 Module …
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      Amazon.com
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      3PCS Arduino FT232RL USB To Seria…
      U
      US eBay
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      30ft Wireless Bluetooth Rf Transceiv…
      E
      Everymarket INC
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      VKLSVAN 3PCS RS232 To TTL Fema…
      A
      Amazon.com
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      FT232RL USB To Serial Adapter Mod…
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      Amazon.com
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      Serial RS232 Serial Port To TTL Conv…
      U
      US eBay
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      5PCS IIC/I2C Serial Interface Board …
      U
      US eBay
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