The interface is up (or not in a shutdown state), but line protocol down.!--- Reason: In this case, the device on the other side of the wire is a!--- CatOS switch with its port disabled. Router#sh interfaces fas 6/1 status Port Name Status Vlan Duplex Speed Type Fa6/1 notconnect 1 auto auto 10/100BaseTX!--- The show interfaces card-type.

Used for communication between the Arduino board and a computer or other devices. Mt65xx preloader driver download. All Arduino boards have at least one serial port (also known as a UART or USART): Serial. It communicates on digital pins 0 (RX) and 1 (TX) as well as with the computer via USB. Thus, if you use these functions, you cannot also use pins 0 and 1 for digital input or output. You can use the Arduino environment’s built-in serial monitor to communicate with an Arduino board.

Click the serial monitor button in the toolbar and select the same baud rate used in the call to begin(). The Arduino Mega has three additional serial ports: Serial1 on pins 19 (RX) and 18 (TX), Serial2 on pins 17 (RX) and 16 (TX), Serial3 on pins 15 (RX) and 14 (TX). To use these pins to communicate with your personal computer, you will need an additional USB-to-serial adaptor, as they are not connected to the Mega’s USB-to-serial adaptor. To use them to communicate with an external TTL serial device, connect the TX pin to your device’s RX pin, the RX to your device’s TX pin, and the ground of your Mega to your device’s ground.