OPEN-SMART Optical UART Serial Fingerprint Recognition Sensor Module TTL Serial Control with Adapter Module Cable for Arduino

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Optical UART Serial Fingerprint Recognition Reader Sensor Module TTL Control Up to 500 Finger Prints

3pcs CP2104 USB 2.0 to TTL Adapter UART 6pin Serial Converter Module STC PRGMR With Cable

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10pcs TTL to RS485 Module Hardware Automatic Flow Control Module Serial UART Level Mutual Converter Power Supply Module 3.3V 5V

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USR-WIFI232-A2 Industrial Serial Ttl-uart To Wifi Wireless Module With On Board Antenna DHCP/DNS Function

10Pcs RobotDyn® USB Serial Adapter CH340G 5V/3.3V USB to Ttl-uart For Arduino Pro Mini DIY

5Pcs RobotDyn® USB Serial Adapter CH340G 5V/3.3V USB to Ttl-uart For Arduino Pro Mini DIY

10pcs 3.3V 5V USB to TTL Converter CH340G UART Serial Adapter Module STC

5Pcs RobotDyn® USB-TTL UART Serial Adapter CP2102 5V 3.3V USB-A For Arduino

Uart TTL Serial Camera Module 640x480 Pixels for Arduino

USB-TTL UART Serial Adapter CP2102 5V 3.3V USB-A RobotDyn for Arduino - products that work with official Arduino boards

20pcs TTL to RS485 Module Hardware Automatic Flow Control Module Serial UART Level Mutual Converter Power Supply Module 3.3V 5V

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3Pcs RobotDyn® USB-TTL UART Serial Adapter CP2102 5V 3.3V USB-A For Arduino

5pcs RobotDyn® USB to TTL UART CH340 Serial Converter Micro USB 5V/3.3V IC CH340G Module

DL-20 3-5V 2.4G Zigbee Full-Duplex Wireless Serial UART Port Two Way Simultaneous Transceiver Module CC2530 Data Transmission Point-To-Point Mode Broadcast Mode TTL Plug And Play Development-Free

10pcs RobotDyn® USB to TTL UART CH340 Serial Converter Micro USB 5V/3.3V IC CH340G Module

5pcs FT232 USB UART Board FT232R FT232RL To RS232 TTL Serial Module 52 x 17 x 11mm

3pcs FT232 USB UART Board FT232R FT232RL To RS232 TTL Serial Module 52 x 17 x 11mm

Waveshare® Capacitive Fingerprint Recognition Module Touch Sensor Collection and Identification UART Serial Fingerprint

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