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Arduino nano with usb cable Not CH340
The Arduino Nano is a microcontroller board based on the Atmega328. It has 14 digital I/O pins (6 of which are PWM outputs), 8 analog inputs, a 16Mhz crystal, a USB socket, an ICSP connector, and a reset button. On the board, you'll find everything you need to run the microcontroller. It is easily connected to a computer using a USB cable and can be powered by an adapter or a battery.
Arduino Nano can get its power via usb or external power supply. The external power source can be either an AC-DC adapter or a battery. The adapter and battery can be connected via the GND and Vin pins on the board. Arduino nano is not necessary to have the USB constantly connected for the card to work. The card can only be powered by adapter or battery. In this way, the card can be operated independently from the computer.
Arduino Nano is can be used as an external power supply ranging from 6 to 20 volts. These, however, are upper bounds. The board's recommended external power supply range is 7-12V. Because the board's regulator may not function properly at voltages lower than 7V. It can also overheat at voltages greater than 12V.
The operating voltage of the microcontroller on the nano board is 5V. The voltage between 7-12V, which is given over the Vin pin or power socket, is reduced to 5V with the voltage regulator on the board and distributed to the board.
The power pins are as follows:
The Atmega328 has 32 KB of flash memory (about 2 KB is used by the bootloader). Arduino nano has 2 KB SRAM and 1 KB EEPROM.
Input and Output:
The Nano's 14 digital pins can all be used as inputs or outputs. There are 8 analog input pins as well. These analog input pins can be used as digital inputs and outputs as well. In other words, the board has 20 digital input and output pins. All of these pins have a logic level of 5V. Each pin has a maximum capacity. It has an input and output current of 40mA. Furthermore, some pins have unique properties. The following are special pins.
There are several different options for Arduino Nano to communicate with a computer, another arduino or microcontroller. Atmega328 offers UART TTL (5V) serial communication via 0 (RX) and 1 (TX) pins. FT232 usb-serial converter on the card opens a virtual com port on the computer and establishes a bridge between the Atmega328 and the computer. Arduino computer program allows text-based information to be sent and received between the arduino and the computer with the serial monitor it contains. When there is communication between the usb-serial converter and the computer via usb, the RX and TX leds on the card will light up.
As far as hardware is concerned, the nano has only one serial port. This number, however, can be increased in software using the SoftwareSerial library.
Atmega328 also provides I2C and SPI ports. Wire library that comes with the Arduino computer program is used to use I2C, and the SPI library is used to provide SPI communication.
Arduino Nano board is programmed with the Arduino computer program (Arduino IDE). You can start programming by selecting Arduino Nano under Tools > Board tab in the program. For detailed information, you can review the reference and basic functions page. A special software called bootloader is installed on the Atmega328 on the Arduino Nano. In this way, you do not need to use an extra programmer while programming the card. Communication is provided with the original STK500 protocol.
By omitting the bootloader software, the board can be programmed directly with the ISP programmer via the ICSP header of the microcontroller (Reference).