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USB To TTL UART I2C Converter Adapter Module Serial Convertor With 6P DuPont Line/USB Extension Line for Arduino - AliExpress
CH341T USB to UART / I2C Converter 5V / 3.3V
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USB-I2C interface module
Devantect USB to I2C, SPI and Serial interface - RobotShop
USB to I2C Converter Board Universal Communication Module Circuitboard - AliExpress
USB to I2C Click
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DLN-2-U2C USB-I2C/SPI/GPIO Adapter (in U2C-12 compatible mode)
C-Payne USB to I2C Adapter – C-Payne PCB Design
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LinkM - USB to I2C - COM-09903 - SparkFun Electronics
USB to I2C Converter - RobotShop
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Devantec USB to I2C, SPI and Serial interface (Short Pin Headers) - RobotShop
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USB to I2C Basic
CH341A USB to I2C/IIC/SPI/UART/TTL/ISP Adapter EPP/MEM parallel Port Converter | eBay
USB-I2C/SPI/GPIO/PWM/ADC Interface | $19.10 to $89.40
USB I2C click — board with MCP2221 USB-to-UART/I2C converter
