Arduino 開發板
Arduino Nano Every 開發板
Arduino Nano Every
Arduino Nano是為了製作穿載式器材、微式產品而設計的一款新型Arduino，而其中最大特色，是刪掉USB-Type B插座及直流電源插座，並採用Mini-B的USB介面來連接電腦，這款Arduino Nano只在外觀作出修改變了，其他介面及功能與Arduino Uno完全相同，同樣採用ATmega328控制器，，同樣擁有14個數碼輸入輸出埠、8個模擬輸入埠、6個PWM埠，說穿了，Arduino Nano就是一款縮小版的Arduino Uno。
規格
- 供電電壓
- 5 V
- 邏輯電平
- 5 V
- 介面
- i2c, spi, uart, pwm, analog, gpio
- 尺寸
- 45 × 18 × 10 mm
針腳
| 名稱 | 類型 | 說明 |
|---|---|---|
| D13 | bidirectional | SPI SCK |
| +3V3 | power | Internally generated 3.3V power output |
| AREF | analog | Analog reference; can be used as GPIO |
| A0/DAC0 | analog | ADC in / DAC out; can be used as GPIO |
| A1 | analog | ADC in; can be used as GPIO |
| A2 | analog | ADC in; can be used as GPIO |
| A3 | analog | ADC in; can be used as GPIO |
| A4/SDA | analog | ADC in; I2C SDA; can be used as GPIO |
| A5/SCL | analog | ADC in; I2C SCL; can be used as GPIO |
| A6 | analog | ADC in; can be used as GPIO |
| A7 | analog | ADC in; can be used as GPIO |
| +5V | power | Internally generated 5V power output |
| RST | input | Active low reset input |
| GND | ground | |
| VIN | power | Vin power input |
| TX | bidirectional | USART TX; can be used as GPIO |
| RX | bidirectional | USART RX; can be used as GPIO |
| RST | input | Active low reset input |
| GND | ground | |
| D2 | bidirectional | GPIO |
| D3/PWM | bidirectional | GPIO; can be used as PWM |
| D4 | bidirectional | GPIO |
| D5/PWM | bidirectional | GPIO; can be used as PWM |
| D6/PWM | bidirectional | GPIO; can be used as PWM |
| D7 | bidirectional | GPIO |
| D8 | bidirectional | GPIO |
| D9/PWM | bidirectional | GPIO; can be used as PWM |
| D10/PWM | bidirectional | GPIO; can be used as PWM |
| D11/MOSI | bidirectional | SPI MOSI; can be used as GPIO |
| D12/MISO | bidirectional | SPI MISO; can be used as GPIO |
程式庫
- Arduino core (megaAVR) [arduino] — 文件
其他規格
- 速度
- 20MHz
- CPU快閃記憶體
- 48KB (ATMega4809)
- SRAM
- 6KB (ATMega4809)
- EEPROM
- 256byte (ATMega4809)
- VIN min-MAX
- 7-21V
- 每個I/O引腳的直流電流
- 20毫安
- 3.3V引腳的直流電流
- 50毫安
- PWM引腳
- 5個 (D3、D5、D6、D9、D10)
- UART
- 1個
- SPI
- 1個
- I2C
- 1個
- 模擬量輸入引腳
- 8個 (ADC 10位)
- 模擬輸出引腳
- 僅通過PWM（無DAC）。
- 外部中斷
- 全數碼引腳
- LED_BUILTIN
- 13
- USB界面
- Micro-USB
使用注意
- Nano Every 雖為 5V 邏輯,但板上 USB 橋接晶片 ATSAMD11D14A 嘅引腳只係 3.3V,唔耐受 5V,若直接接去外部電路要格外小心。供電可以經 USB 或者 VIN 排針;VIN 建議 7-21V 輸入,經 MPM3610 DC-DC 降壓。+3V3 由 AP2112K LDO 由 5V 產生,建議外部負載唔好超過 200mA。佢係 classic Nano 嘅 drop-in 替代,但核心係 ATMega4809 而唔係 ATmega328P,所以暫存器層面嘅程式碼未必直接兼容。USB 插座係 Micro-USB,並非 Mini-B。Debug 測試點喺板底通訊模組下面,3x2 100mil 但缺 pin 4。