AEDÂ 40.95
Description
A compact, comprehensive, and breadboard-friendly board based on the ATmega328P-AU is the keyestudio Nano CH340. The USB-to-serial port chip utilized in keyestudio Nano is CH340G, all operating procedures are identical to any Arduino Nano board. It contains 8 analog inputs, a 16 MHz crystal oscillator, 14 digital input/output pins, 6 of which can be used as PWM outputs, a small USB connector, an ICSP header, and a reset button. The Mini-B USB port or female headers Vin/GND can be used to power the KeyeStudio Nano (DC 7-12V).
Specifications:
| Microcontroller | ATmega328P-AU |
|---|---|
| Operating Voltage | 5V |
| Input Voltage (recommended) | DC7-12V |
| Digital I/O Pins | 14 (D0-D13) (of which 6 provide PWM output) |
| PWM Digital I/O Pins | 6 (D3, D5, D6, D9, D10, D11) |
| Analog Input Pins | 8 (A0-A7) |
| DC Current per I/O Pin | 40 mA |
| Flash Memory | 32 KB of which 2 KB used by the bootloader |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Clock Speed | 16 MHz |
| LED_BUILTIN | D13 |
| PCB Dimensions | 18mm x 45mm |
| Weight | 7g |
Pinout of the Nano:
| 1 | ICSP Header | ICSP (In-Circuit Serial Programming) Header
ICSP is the AVR, a micro-programming header consisting of MOSI, MISO, SCK, RESET, VCC, and GND. It is often called the SPI (serial peripheral interface) and can be considered an "extension" of output. In fact, slave the output devices under the SPI bus host. |
| 2 | LED indicator（RX） | Onboard you can find the label: RX(receive ) When the control board communicates via serial port, receives the message, RX led flashes. |
| 3 | LED indicator（TX） | Onboard you can find the label: TX (transmit) When the control board communicates via serial port, sends the message, TX led flashes. |
| 4 | LED indicator（POW） | Power up the control board, LED on, otherwise LED off. |
| 5 | LED indicator（L） | There is a built-in LED driven by digital pin 13. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. |
| 6 | RX0（D0）TX1（D1）D2-D13 | It has 14 digital input/output pins D0-D13 (of which 6 can be used as PWM outputs). These pins can be configured as digital input pins to read the logic value (0 or 1). Or used as a digital output pin to drive different modules like LED, Relay, etc. |
| 7 | RST | Reset pin: connect external button. The function is the same as the RESET button. |
| 8 | MEGA 328P | Each board has its own microcontroller. You can regard it as the brain of your board. Microcontrollers are usually from ATMEL. Before you load a new program on the Arduino IDE, you must know what IC is on your board. This information can be checked at the top surface of the IC. |
| 9 | MINI USB | The board can be powered via a Mini-B USB connection. Also, upload the program to the oard via USB port. |
| 10 | 3V3 pin | provides 3.3V voltage output |
| 11 | REF | Reference external voltage (0-5 volts) for the analog input pins. Used with analogReference(). |
| 12 | A0-A7 | The Nano has 8 Analog Pins, labeled A0 through A7. |
| 13 | 5V pin | Provides 5V voltage output |
| 14 | GND | Ground pin |
| 15 | VIN | Input an external voltage DC7-12V to power the board. |
| 16 | Reset Button | Used to reset the control board |
| 17 | ch340G | USB-to-serial port chip, converting the USB signal into Serial port signal. |
| 18 | AMS1117 | Convert the external voltage input DC7-12V into DC5V, then transfer it to the processor and other elements. |
Specialized Functions of Some Pins
- Serial communication: 0 (RX) and 1 (TX). Used to receive (RX) and transmit (TX) TTL serial data.
- PWM (Pulse-Width Modulation): D3, D5, D6, D9, D10, D11
- External Interrupts: D2 (interrupt 0) and D3 (interrupt 1). These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.
- SPI communication: D10 (SS), D11 (MOSI), D12 (MISO), D13 (SCK).
- IIC communication: A4 (SDA); A5(SCL)
Package Includes:
- 1 x Arduino Nano Board
- 1 x USB Cable