Adafruit

The 954 cable is easiest way to connect to your microcontroller/Raspberry Pi/WiFi router serial console port or for programming your VEX Victor BB speed controller.Inside the big USB plug is a USBSerial conversion chip and at the end of the 36" cable are four wire - red power, black ground, white RX into USB port, and green TX out of the USB port. The power pin provides the 5V @ 500mA direct from the USB port and the RX/TX pins are 3.3V level for interfacing with the most common 3.3V logic...