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MAC MINI POWER SUPPLY VOLTAGE SERIAL
The RX and TX LEDs on the board will flash when data is being transmitted via the FTDI chip and USB connection to the computer (but not for serial communication on pins 0 and 1).Ī SoftwareSerial library allows for serial communication on any of the Nano's digital pins. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the Arduino board.
MAC MINI POWER SUPPLY VOLTAGE DRIVERS
An FTDI FT232RL on the board channels this serial communication over USB and the FTDI drivers (included with the Arduino software) provide a virtual com port to software on the computer. The ATmega328 provide UART TTL (5V) serial communication, which is available on digital pins 0 (RX) and 1 (TX). The Arduino Nano has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers. Typically used to add a reset button to shields which block the one on the board. Bring this line LOW to reset the microcontroller. There are a couple of other pins on the board: Support I2C (TWI) communication using the Wire library (documentation on the Wiring website). Additionally, some pins have specialized functionality: Analog pins 6 and 7 cannot be used as digital pins. By default they measure from ground to 5 volts, though is it possible to change the upper end of their range using the analogReference() function. The Nano has 8 analog inputs, each of which provide 10 bits of resolution (i.e. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. There is a built-in LED connected to digital pin 13.
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These pins support SPI communication, which, although provided by the underlying hardware, is not currently included in the Arduino language. Provide 8-bit PWM output with the analogWrite() function. See the attachInterrupt() function for details. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. These pins are connected to the corresponding pins of the FTDI USB-to-TTL Serial chip. Used to receive (RX) and transmit (TX) TTL serial data. In addition, some pins have specialized functions: Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. Each of the 14 digital pins on the Nano can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions.