USB-SERIAL-CABLE-F

OLIMEX  USB-SERIAL-CABLE-F  电缆, 串行口控制台, 用于OLINUXINO

The is a USB to serial female cable. The RX line of the cable green wire should go to TX line of the target board, the TX line of the cable red wire should go to the RX line of the target board. The blue wire should go to the targets GND line.

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USB to serial cable

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Three wires for breadboard connection

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Serial output 3.3V voltage levels

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GND=BLUE, RXINPUT=GREEN, TXOUTPUT=RED