fpm383c指纹模块

fpm383c指纹模块是一种常见的指纹识别模块，可以用于各种应用场景，如门禁系统、安防系统等。它支持串口通信，可与Arduino、树莓派等单片机进行连接，实现指纹识别功能。

fpm383c指纹模块具有以下特点：

1. 精度高：采用高清晰度光学感应器，能够快速、准确地识别指纹。

2. 安全性好：支持512组指纹存储，每组指纹可存储多个指纹模板，保证数据安全。

3. 功能强大：支持指纹录入、删除、搜索等多种功能，同时支持自动学习和更新，提高识别率。

4. 稳定性好：采用优秀的算法和芯片设计，具有较高的稳定性和可靠性。

fpm383c指纹模块的接线简单，一般只需要连接VCC、GND、TX、RX四个引脚即可。在使用时，需要先进行指纹录入，将指纹信息存储在指纹库中，然后进行指纹验证，判断是否匹配。

相关问题

fpm383c指纹模块Arduino代码

好的，以下是一个基本的fpm383c指纹模块的Arduino代码示例，供您参考：

#include "Adafruit_Fingerprint.h"
#define mySerial Serial1
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

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

  finger.begin(57600);
  if (finger.verifyPassword()) {
    Serial.println("Found fingerprint sensor!");
  } else {
    Serial.println("Did not find fingerprint sensor :(");
    while (1) { delay(1); }
  }

  finger.getTemplateCount();
  Serial.print("Sensor contains "); Serial.print(finger.templateCount);
  Serial.println(" templates");
  Serial.println("Waiting for valid finger...");
}

void loop() {
  getFingerprintIDez();
  delay(50);            //don't ned to run this at full speed.
}

uint8_t getFingerprintID() {
  uint8_t p = finger.getImage();
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image taken");
      break;
    case FINGERPRINT_NOFINGER:
      Serial.println("No finger detected");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_IMAGEFAIL:
      Serial.println("Imaging error");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }

  // OK success!

  p = finger.image2Tz();
  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!
  p = finger.fingerFastSearch();
  if (p == FINGERPRINT_OK) {
    Serial.println("Found a print match!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    return p;
  } else if (p == FINGERPRINT_NOTFOUND) {
    Serial.println("Did not find a match");
    return p;
  } else {
    Serial.println("Unknown error");
    return p;
  }

  // found a match!
  Serial.print("Found ID #"); Serial.print(finger.fingerID);
  Serial.print(" with confidence of "); Serial.println(finger.confidence);
  return finger.fingerID;
}

// returns -1 if failed, otherwise returns ID #
int getFingerprintIDez() {
  uint8_t p = finger.getImage();
  if (p != FINGERPRINT_OK)  return -1;

  p = finger.image2Tz();
  if (p != FINGERPRINT_OK)  return -1;

  p = finger.fingerFastSearch();
  if (p != FINGERPRINT_OK)  return -1;

  // found a match!
  Serial.print("Found ID #"); Serial.print(finger.fingerID);
  Serial.print(" with confidence of "); Serial.println(finger.confidence);
  return finger.fingerID;
}

这段代码使用了Adafruit_Fingerprint库，可以通过Arduino库管理器安装。在使用前，请务必确认指纹模块的串口波特率是否为57600，以及指纹模块的密码是否为默认值（0x00000000）。另外，需要注意的是，这段代码中只能对单个指纹进行识别，如果需要进行多个指纹的管理和识别，需要在此基础上进行扩展。

帮我生成一份，stm32f407板，以标准库编写运行fpm383c指纹识别模块的代码

好的，以下是一份参考代码，供您参考：

#include "stm32f4xx.h"
#include "stdio.h"
#include "string.h"
#include "stdbool.h"

#define UART_TX GPIO_Pin_2
#define UART_RX GPIO_Pin_3

UART_HandleTypeDef uart_handle;

void UART_Init(void)
{
    __HAL_RCC_USART2_CLK_ENABLE();

    GPIO_InitTypeDef gpio_init;

    gpio_init.Pin = UART_TX | UART_RX;
    gpio_init.Mode = GPIO_MODE_AF_PP;
    gpio_init.Pull = GPIO_PULLUP;
    gpio_init.Speed = GPIO_SPEED_FAST;
    gpio_init.Alternate = GPIO_AF7_USART2;
    HAL_GPIO_Init(GPIOA, &gpio_init);

    uart_handle.Instance = USART2;
    uart_handle.Init.BaudRate = 115200;
    uart_handle.Init.WordLength = UART_WORDLENGTH_8B;
    uart_handle.Init.StopBits = UART_STOPBITS_1;
    uart_handle.Init.Parity = UART_PARITY_NONE;
    uart_handle.Init.Mode = UART_MODE_TX_RX;
    uart_handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    uart_handle.Init.OverSampling = UART_OVERSAMPLING_16;
    HAL_UART_Init(&uart_handle);
}

void UART_Send(char *str)
{
    HAL_UART_Transmit(&uart_handle, (uint8_t *)str, strlen(str), 1000);
}

void UART_Receive(char *buffer, uint16_t buffer_size)
{
    uint16_t i = 0;
    while (i < buffer_size - 1)
    {
        HAL_UART_Receive(&uart_handle, (uint8_t *)&buffer[i], 1, 1000);
        if (buffer[i] == '\n')
        {
            buffer[i + 1] = '\0';
            break;
        }
        i++;
    }
}

bool FPM383C_Init(void)
{
    // 发送初始化指令
    UART_Send("FPM383C Init\n");

    char buffer[32] = {0};
    UART_Receive(buffer, sizeof(buffer));

    // 检查返回值
    if (strcmp(buffer, "OK\n") == 0)
    {
        return true;
    }
    else
    {
        return false;
    }
}

bool FPM383C_Enroll(void)
{
    // 发送录入指令
    UART_Send("FPM383C Enroll\n");

    char buffer[32] = {0};
    UART_Receive(buffer, sizeof(buffer));

    // 检查返回值
    if (strcmp(buffer, "OK\n") == 0)
    {
        return true;
    }
    else
    {
        return false;
    }
}

bool FPM383C_Verify(void)
{
    // 发送验证指令
    UART_Send("FPM383C Verify\n");

    char buffer[32] = {0};
    UART_Receive(buffer, sizeof(buffer));

    // 检查返回值
    if (strcmp(buffer, "OK\n") == 0)
    {
        return true;
    }
    else
    {
        return false;
    }
}

int main(void)
{
    UART_Init();

    while (1)
    {
        if (FPM383C_Init())
        {
            UART_Send("FPM383C Initialized\n");
        }
        else
        {
            UART_Send("FPM383C Init Failed\n");
        }

        if (FPM383C_Enroll())
        {
            UART_Send("FPM383C Enrolled\n");
        }
        else
        {
            UART_Send("FPM383C Enroll Failed\n");
        }

        if (FPM383C_Verify())
        {
            UART_Send("FPM383C Verified\n");
        }
        else
        {
            UART_Send("FPM383C Verify Failed\n");
        }

        HAL_Delay(1000);
    }
}

以上代码仅供参考，并未经过实际测试，您需要根据自己的实际情况进行适当的修改和调整。