arduino+AS608的使用教程

arduino+AS608的使用教程

解决 Adafruit Fingerprint sensor enrollment

Did not find fingerprint sensor 的问题

器材的准备

1. AS608光学指纹模块
2. uno板子一个
3. 杜邦线若干
4. usb转ttl

接线

这个我就不说了小孩子都知道怎么接线

开始搭载AS608模块

直接上代码，不废话

/*************************************************** 
  This is an example sketch for our optical Fingerprint sensor

  Designed specifically to work with the Adafruit BMP085 Breakout 
  ----> http://www.adafruit.com/products/751

  These displays use TTL Serial to communicate, 2 pins are required to 
  interface
  Adafruit invests time and resources providing this open source code, 
  please support Adafruit and open-source hardware by purchasing 
  products from Adafruit!

  Written by Limor Fried/Ladyada for Adafruit Industries.  
  BSD license, all text above must be included in any redistribution
 ****************************************************/

#include 

// On Leonardo/Micro or others with hardware serial, use those! #0 is green wire, #1 is white
// uncomment this line:
// #define mySerial Serial1

// For UNO and others without hardware serial, we must use software serial...
// pin #2 is IN from sensor (GREEN wire)
// pin #3 is OUT from arduino  (WHITE wire)
// comment these two lines if using hardware serial
SoftwareSerial mySerial(2, 3);

Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

uint8_t id;

void setup()  
{
  Serial.begin(9600);
  while (!Serial);  // For Yun/Leo/Micro/Zero/...
  delay(100);
  Serial.println("\n\nAdafruit Fingerprint sensor enrollment");

  // set the data rate for the sensor serial port
  finger.begin(57600);
  
  if (finger.verifyPassword()) {
    Serial.println("Found fingerprint sensor!");
  } else {
    Serial.println("Did not find fingerprint sensor :(");
    while (1) { delay(1); }
  }
}

uint8_t readnumber(void) {
  uint8_t num = 0;
  
  while (num == 0) {
    while (! Serial.available());
    num = Serial.parseInt();
  }
  return num;
}

void loop()                     // run over and over again
{
  Serial.println("Ready to enroll a fingerprint!");
  Serial.println("Please type in the ID # (from 1 to 127) you want to save this finger as...");
  id = readnumber();
  if (id == 0) {// ID #0 not allowed, try again!
     return;
  }
  Serial.print("Enrolling ID #");
  Serial.println(id);
  
  while (!  getFingerprintEnroll() );
}

uint8_t getFingerprintEnroll() {

  int p = -1;
  Serial.print("Waiting for valid finger to enroll as #"); Serial.println(id);
  while (p != FINGERPRINT_OK) {
    p = finger.getImage();
    switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image taken");
      break;
    case FINGERPRINT_NOFINGER:
      Serial.println(".");
      break;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      break;
    case FINGERPRINT_IMAGEFAIL:
      Serial.println("Imaging error");
      break;
    default:
      Serial.println("Unknown error");
      break;
    }
  }

  // OK success!

  p = finger.image2Tz(1);
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image converted");
      break;
    case FINGERPRINT_IMAGEMESS:
      Serial.println("Image too messy");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_FEATUREFAIL:
      Serial.println("Could not find fingerprint features");
      return p;
    case FINGERPRINT_INVALIDIMAGE:
      Serial.println("Could not find fingerprint features");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }
  
  Serial.println("Remove finger");
  delay(2000);
  p = 0;
  while (p != FINGERPRINT_NOFINGER) {
    p = finger.getImage();
  }
  Serial.print("ID "); Serial.println(id);
  p = -1;
  Serial.println("Place same finger again");
  while (p != FINGERPRINT_OK) {
    p = finger.getImage();
    switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image taken");
      break;
    case FINGERPRINT_NOFINGER:
      Serial.print(".");
      break;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      break;
    case FINGERPRINT_IMAGEFAIL:
      Serial.println("Imaging error");
      break;
    default:
      Serial.println("Unknown error");
      break;
    }
  }

  // OK success!

  p = finger.image2Tz(2);
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image converted");
      break;
    case FINGERPRINT_IMAGEMESS:
      Serial.println("Image too messy");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_FEATUREFAIL:
      Serial.println("Could not find fingerprint features");
      return p;
    case FINGERPRINT_INVALIDIMAGE:
      Serial.println("Could not find fingerprint features");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }
  
  // OK converted!
  Serial.print("Creating model for #");  Serial.println(id);
  
  p = finger.createModel();
  if (p == FINGERPRINT_OK) {
    Serial.println("Prints matched!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    return p;
  } else if (p == FINGERPRINT_ENROLLMISMATCH) {
    Serial.println("Fingerprints did not match");
    return p;
  } else {
    Serial.println("Unknown error");
    return p;
  }   
  
  Serial.print("ID "); Serial.println(id);
  p = finger.storeModel(id);
  if (p == FINGERPRINT_OK) {
    Serial.println("Stored!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    return p;
  } else if (p == FINGERPRINT_BADLOCATION) {
    Serial.println("Could not store in that location");
    return p;
  } else if (p == FINGERPRINT_FLASHERR) {
    Serial.println("Error writing to flash");
    return p;
  } else {
    Serial.println("Unknown error");
    return p;
  }   
}

然后很多人到这一步就会报错

Adafruit Fingerprint sensor enrollment
Did not find fingerprint sensor :(

出现了这个报错

不要紧,拿出早就准备好的usb转ttl然后将usb转ttl和AS608连接,接口部分只用接VCC GND RX TX

第一步：将模块的 Tx、Rx 连接到 USB 转串口设备。（提示：开发板可使用板载的 CH340）。

第二步：在计算机设备管理器找到识别的串口号

第三步：打开模块资料\2，配套软件\指纹模块测试上位机\指纹测试.exe，然后在上位机
选择对应串口号

第四步：点击“确定”，通讯成功。

第五步：通讯成功之后可查看硬件信息、波特率等，可以点击面板上按钮等功能操作。

下面我们点击“录入指纹”按钮，点击后。并输入 0为录入指纹 ID。

第六步：点击“确定”，软件提示“请将手指平放在传感器上”

第七步：按照提示将手指平放在传感器上，等待图像上传， 所示。提示：
上传时间稍微久一点。波特率越高速度越快，使用 USB 模块测试则会更快。

第八步：第一次录入图像成功之后，软件会提示“2.请将手指平放在传感器上”表示第
二次录入图像。

第九步：当两次录入图像的指纹经过对比匹配之后，如果一致的话指纹就录入成功了。
录入成功

第十步：前面操作是录入了一个指纹，下面我们测试一下刷指纹（验证指纹）。首先我
们点击“搜索”

第十一步：点击了搜索之后软件提示“请将手指平放在传感器上”

第十二步：按照提示将手指放在传感器上录入图像成功之后，系统对比录入图像与指纹
库，如果对比成功，则提示“找到相同手指，FingerID=88……”

提示：如果通讯不成功请检查接线方式是否正确，正确方式是模块 Tx、Rx 分别接到 USB
转串口设备的 Rx、Tx。如果更改了模块地址必须更改回默认 OxFFFFFFFF，同时口令也
必须是默认值 0，这样才能正常通讯！CH340 USB 转串口的驱动程序在模块资料\3，配套
软件\CH340 驱动程序。

烧代码部分

结束了上面的操作后你的AS608（相当于激活了）能工作了

下载Adafruit-Fingerprint-Sensor-Library-master这个ardino的库文件

1.在Arduino IDE中，转到File > Examples > Adafruit Fingerprint Sensor Library > Enroll。

2.上传代码到Arduino开发板，并以9600的波特率打开串行监视器。

3.这时您应该输入指纹的ID。由于这是您的第一个指纹，请在左上角输入1，然后单击Send按钮。
大功告成

如果还有不会的伙伴在下方评论，我教你

创作不易，如果对你有帮助的还麻烦点个赞