RESET Active Low Reset Pin GND Ground GND How to Power Arduino Nano? Mini USB: Smaller than standard USB and larger than micro USB, the Mini USB powers the Nano board. It also enables connection to a computer for programming purposes. Vin: This modulated DC supply voltage regulates the ICs...
String ; //nfc#defineRST_PIN 9 // Configurable, see typical pin layout above #define SS_PIN 10 // Configurable, see typical pin layout above MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance #define NEW_UID {0xDE, 0xAD, 0xBE, 0xEF} MFRC522::MIFARE_Key key; //l...
4、程序代码 此处测试的Arduino型号是Arduino Nano V3.0,其他型号请结合上表修改引脚号。 示例代码读取UID,并将其分别以十进制和十六进制输出到串口,简化版如下: #include<SPI.h>#include<MFRC522.h>#define SS_PIN 10 #define RST_PIN 9 MFRC522 rfid(SS_PIN, RST_PIN); //实例化类 // 初始化数组用...
The Nano 33 BLE / Nano 33 BLE Sense is designed as an improved version of the Arduino Nano / Nano Every, featuring the same pin layout to make it nice and easy for DIYers. Both boards have a 32-bit Arm Cortex-M4 CPU running at 64MHz built into their nRF52840 chips, with 1MB of ...
此处测试的Arduino型号是Arduino Nano V3.0,其他型号请结合上表修改引脚号。 示例代码读取UID,并将其分别以十进制和十六进制输出到串口,简化版如下: #include <SPI.h> #include <MFRC522.h> #define SS_PIN 10 #define RST_PIN 9 MFRC522 rfid(SS_PIN, RST_PIN); //实例化类 ...
Shown here in clockwise order from the lower left are a Duemilanove, a Leonardo, a clone Mega2560 with an extended I/O pin layout from SainSmart, and an official Arduino Mega2560, with an Arduino Nano sitting in the center. Figure 4-3. Comparison of Arduino and clone boards Full-Size Base...
I was examining the schematics for an Arduino Nano Every, and I was curious about something. It seems to me (more or less) that an Arduino is essentially just 1 or 2 microcontrollers on a board along with other necessary circuitry. In the case of a Nano Every, you have the ATMEGA4809...
Pin sequence - Not compatible with RF24 library(10,9,11,12,13) Compatible with RF24 library(7,8,11,12,13) External antenna - None Yes Note:Besides upgrading the functional points, the PCB layout of rf-nano 3.0 has also been newly optimized with careful arrangement. In addition, the pow...
Search or jump to... Search code, repositories, users, issues, pull requests... Provide feedback We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Cancel Submit feedback Saved searches Use saved searches to filter your...
利用pinMode()、digitalWrite()和digitalRead()功能,Uno上的14个数字引脚都可用作输入或输出。它们的工作电压为5V。每个引脚都可以提供或接受最高40 mA的电流,都有1个20-50 kΩ的内部上拉电阻器(默认情况下断开)。此外,某些引脚还具有特殊功能:· 串口:0(RX)和1(TX)。用于接收(RX)和发送(TX)TTL串口数据。