A328P Nano integrates NRF24L01 wireless CH340/CC2540 Bluetooth

Product Introduction

The RF-NANO board integrates the NRF24L01+chip, giving it unlimited transmission and reception capabilities, which is equivalent to combining a regular Nano board and an NRF24L01 module into one, making it more convenient to use and smaller in size. RF-NANO has identical pins to common Nano boards, making it easy to transplant.

Product parameters

Introduction to Processor

The Arduino RF-NAN0 microprocessor is an ATmega328 (Nano3.0) with a USB Micro interface and 14 digital input/output ports (6 of which can be used as PWM outputs), 8 analog inputs, a 16MHz crystal oscillator, a USB Micro port, an ICSP header, and a reset button.

*Processor: ATmega328

*Working voltage: 5V Input voltage (recommended): 7-12V Input voltage (range): 6-20V

*Digital IO pins: 14 (with 6 channels as PWM outputs) (D0~D13)

*Analog input pins: 6 (A0~A5)

*IO pin DC current: 40mA

*Flash Memory: 32KB (of which 2KB is used for bootloader)

*SRAM:2KB

*EEPROM:1KB(ATega328)

*USB to serial chip: CH340

*Working clock: 16MHz

Power Supply

Arduino RF Nano power supply method: Micro USB interface power supply and external Vin connection to 7-12V external DC power supply

Storage

ATmega328 includes 32KB of on-chip Flash, of which 2KB is used for Bootloader. There are also 2KB SRAM and 1KB EEPROM.

Input/output

14 digital input/output ports: The working voltage is 5V, and each channel can output and connect a maximum current of 40mA. Each circuit is equipped with an internal pull-up resistor of 20-50K ohms (not connected by default). In addition, some pins have specific functions.

Serial port signals RX (0) and TX (1): provide TTL voltage level serial port receiving signals, connected to the corresponding pins of FT232R1.

External Interrupt (No.2 and No.3): Trigger the interrupt pin, which can be set to a rising edge, a falling edge, or triggered simultaneously.

Pulse Width Modulation PWM (3, 5, 6, 9, 10, 11): Provides 6 channels of 8-bit PWM output.

SPI (10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK)): SPI communication interface.

LED (No. 13): Arduino is specifically designed to test the reserved interface of LEDs. When the output is high, the LED lights up, and when the output is low, the LED goes out.

6 analog inputs A0 to A5: Each channel has a resolution of 10 bits (i.e. 1024 different values), with a default input signal range of 0 to 5V. The input upper limit can be adjusted through ARFF. In addition, some pins have specific functions.

TWI interface (SDA A4 and SCL A5): Supports communication interface (compatible with I2C bus).

AREF: Reference voltage for analog input signal

Reset: Reset the microcontroller chip when the signal is low.

Communication interface

Serial port: The built-in UART of ATmega328 can achieve serial communication with external devices through digital ports 0 (RX) and 1 (TX).

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