Arduino UNOæ¯Arduino USBæ¥å£ç³»åçææ°çæ¬ï¼ä½ä¸ºArduinoå¹³å°çåèæ å模æ¿ãUNOçå¤çå¨æ ¸å¿æ¯ATmega328ï¼åæ¶å
·æ14è·¯æ°åè¾å
¥/è¾åºå£ï¼å
¶ä¸6è·¯å¯ä½ä¸ºPWMè¾åºï¼ï¼6路模æè¾å
¥ï¼ä¸ä¸ª16MHzæ¶ä½æ¯è¡å¨ï¼ä¸ä¸ªUSBå£ï¼ä¸ä¸ªçµæºæ座ï¼ä¸ä¸ªICSP headeråä¸ä¸ªå¤ä½æé®ãUNOå·²ç»åå¸å°ç¬¬ä¸çï¼ä¸å两çç¸æ¯æ以ä¸æ°çç¹ç¹
æ¦è¦
å¤çå¨ ATmega328
å·¥ä½çµå 5V
è¾å
¥çµåï¼æ¨èï¼ 7-12V
è¾å
¥çµåï¼èå´ï¼ 6-20V
æ°åIOè 14 (å
¶ä¸6è·¯ä½ä¸ºPWMè¾åºï¼
模æè¾å
¥è 6
IOèç´æµçµæµ 40 mA
3.3Vèç´æµçµæµ 50 mA
Flash Memory 32 KB ï¼ATmega328ï¼å
¶ä¸0.5 KB ç¨äº bootloaderï¼
SRAM 2 KB ï¼ATmega328ï¼
EEPROM 1 KB ï¼ATmega328ï¼
å·¥ä½æ¶é 16 MHz
çµæº
Arduino UNOå¯ä»¥éè¿3ç§æ¹å¼ä¾çµï¼èä¸è½èªå¨éæ©ä¾çµæ¹å¼
å¤é¨ç´æµçµæºéè¿çµæºæ座ä¾çµã
çµæ± è¿æ¥çµæºè¿æ¥å¨çGNDåVINå¼èã
USBæ¥å£ç´æ¥ä¾çµã
çµæºå¼è说æ
VIN --- å½å¤é¨ç´æµçµæºæ¥å
¥çµæºæ座æ¶ï¼å¯ä»¥éè¿VINåå¤é¨ä¾çµï¼ä¹å¯ä»¥éè¿æ¤å¼èåUNOç´æ¥ä¾çµï¼VINæçµæ¶å°å¿½ç¥ä»USBæè
å
¶ä»å¼èæ¥å
¥ççµæºã
5V --- éè¿ç¨³åå¨æUSBç5Vçµåï¼ä¸ºUNOä¸ç5Vè¯çä¾çµã
3.3V --- éè¿ç¨³åå¨äº§çç3.3Vçµåï¼æ大驱å¨çµæµ50mAã
GND --- å°èã
åå¨å¨
ATmega328å
æ¬äºçä¸32KB Flashï¼å
¶ä¸0.5KBç¨äºBootloaderãåæ¶è¿æ2KB SRAMå1KB EEPROMã
è¾å
¥è¾åº
14è·¯æ°åè¾å
¥è¾åºå£ï¼å·¥ä½çµå为5Vï¼æ¯ä¸è·¯è½è¾åºåæ¥å
¥æ大çµæµä¸º40mAãæ¯ä¸è·¯é
ç½®äº20-50K欧å§å
é¨ä¸æçµé»ï¼é»è®¤ä¸è¿æ¥)ãé¤æ¤ä¹å¤ï¼æäºå¼èæç¹å®çåè½
串å£ä¿¡å·RXï¼0å·ï¼ãTXï¼1å·ï¼: ä¸å
é¨ ATmega8U2 USB-to-TTL è¯çç¸è¿ï¼æä¾TTLçµåæ°´å¹³ç串å£æ¥æ¶ä¿¡å·ã
å¤é¨ä¸æï¼2å·å3å·ï¼ï¼è§¦åä¸æå¼èï¼å¯è®¾æä¸å沿ãä¸é沿æåæ¶è§¦åã
èå²å®½åº¦è°å¶PWMï¼3ã5ã6ã9ã10 ã11ï¼ï¼æä¾6è·¯8ä½PWMè¾åºã
SPIï¼10(SS)ï¼11(MOSI)ï¼12(MISO)ï¼13(SCK)ï¼ï¼SPIéä¿¡æ¥å£ã
LEDï¼13å·ï¼ï¼Arduinoä¸é¨ç¨äºæµè¯LEDçä¿çæ¥å£ï¼è¾åºä¸ºé«æ¶ç¹äº®LEDï¼åä¹è¾åºä¸ºä½æ¶LEDççã
6路模æè¾å
¥A0å°A5ï¼æ¯ä¸è·¯å
·æ10ä½çå辨çï¼å³è¾å
¥æ1024个ä¸åå¼ï¼ï¼é»è®¤è¾å
¥ä¿¡å·èå´ä¸º0å°5Vï¼å¯ä»¥éè¿AREFè°æ´è¾å
¥ä¸éãé¤æ¤ä¹å¤ï¼æäºå¼èæç¹å®åè½
TWIæ¥å£ï¼SDA A4åSCL A5ï¼ï¼æ¯æéä¿¡æ¥å£ï¼å
¼å®¹I2Cæ»çº¿ï¼ã
AREFï¼æ¨¡æè¾å
¥ä¿¡å·çåèçµåã
Resetï¼ä¿¡å·ä¸ºä½æ¶å¤ä½åçæºè¯çã
éä¿¡æ¥å£
串å£ï¼ATmega328å
ç½®çUARTå¯ä»¥éè¿æ°åå£0ï¼RXï¼å1ï¼TXï¼ä¸å¤é¨å®ç°ä¸²å£éä¿¡ï¼ATmega16U2å¯ä»¥è®¿é®æ°åå£å®ç°USBä¸çèæ串å£ã
TWIï¼å
¼å®¹I2Cï¼æ¥å£ï¼
SPI æ¥å£ï¼
温馨提示:答案为网友推荐,仅供参考