int state_bt=1; int relPin; int stare=0; byte COD[10]; byte AUX[10]; int k=0; String codacces="*123456#"; String ; //nfc #define RST_PIN 9 // Configurable, see typical pin layout above #define SS_PIN 10 // Configurable, see typical pin layout above MFRC522 mfrc522(SS_PI...
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 // 初始化数组用于存储读...
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 Arduino/Genuino Uno board is designed in a way that allows it to be reset by software running on a connected computer. One of the hardware flow control lines (DTR) of the ATmega8U2/16U2 is connected to the reset line of the ATmega328 via a 100 nanofarad capacitor. When this lin...
* Typical pin layout used: * --- * MFRC522 Arduino Arduino Arduino Arduino Arduino * Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro * Signal Pin Pin Pin Pin Pin Pin * --- * RST/
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...
问带两个RC522的ArduinoENa * b= |a| * |b| * cos=a.x * b.x + a.y* b.y 所...
constboolkMatrixSerpentineLayout =false; // Set 'kMatrixSerpentineLayout' to false if your pixels are // laid out all running the same way, like this: // Set 'kMatrixSerpentineLayout' to true if your pixels are // laid out back-and-forth, like this: ...
The figure below shows the image of the Arduino Nano and its corresponding pin. We will like to display the heartbeat in a cool way, hence decided to use the 1.44" tft display and their respective pin layout. And the next device/component that we would like to see is the Bluetoo...
EN有时可能我们想对匿名登录返回的uid做处理，我们可能需要得到匿名登录的uid const app = tcb.ini...