Product Review
The BLE Board has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers. The ATmega328P provide UART TTL (5V) serial communication, which is available on digital pins 0 (RX) and 1 (TX). An TI CC2540 chip on the board channels this serial communication over USB and the TI CC2540 chip drivers (included with the Arduino software) provide a virtual com port to software on the computer. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the Arduino board. The RX and TX LEDs on the board will flash when data is being transmitted via the TI CC2540 chip and USB connection to the computer (but not for serial communication on pins 0 and 1). A SoftwareSerial library allows for serial communication on any of the Nano's digital pins. The ATmega328P also support I2C (TWI) and SPI communication. The Arduino software includes a Wire library to simplify use of the I2C bus. To use the SPI communication, please see ATmega328P datasheet.Â
Microcontroller ATmega328P
TI CC2540 BLE 2.4G wireless
Architecture AVR
Operating Voltage： 5 V
Flash Memory 32 KB of which 2 KB used by bootloader
SRAM ：2 KB
Clock Speed ：16 MHz
Analog I/O Pins ：8
EEPROM： 1 KB
DC Current per I/O Pins 40 mA (I/O Pins)
Input Voltage： 7-12 V
Digital I/O Pins： 22
PWM Output： 6
Power Consumption： 19 mA
PCB Size ：48 x 19mm
Weight ：7 g
Note: Please use Arduino IDE 1.8.6 or higher version. First, install the CC2540 driver,then follow this selection path in Arduino IDE：Tools - Board"Arduino Nano" Processor "ATmega328P", otherwise you'll find that you can't burn any program. Please refer to our github link,it can help you to slove any problem.
