37款传感器与执行器的提法，在网络上广泛流传，其实Arduino能够兼容的传感器模块肯定是不止这37种的。鉴于本人手头积累了一些传感器和执行器模块，依照实践出真知（一定要动手做）的理念，以学习和交流为目的，这里准备逐一动手尝试系列实验，不管成功（程序走通）与否，都会记录下来—小小的进步或是搞不掂的问题，希望能够抛砖引玉。
【Arduino】168种传感器模块系列实验（资料代码+仿真编程+图形编程）
实验一百四十一：AS608光学指纹识别模块 智能锁/考勤门禁开发/指纹采集模块
【Arduino】168种传感器模块系列实验（资料代码+仿真编程+图形编程）
实验一百四十一：AS608光学指纹识别模块 智能锁/考勤门禁开发/指纹采集模块
实验之五：输入序号，删除指定指纹模板
Arduino实验开源代码
/*
【Arduino】168种传感器模块系列实验（资料代码+仿真编程+图形编程）
实验一百四十一：AS608光学指纹识别模块 智能锁/考勤门禁开发/指纹采集模块
实验之五：输入序号，删除指定指纹模板
安装库：IDE—工具—管理库—搜索Adafruit-Fingerprint-Sensor-Library—安装
实验接线：
Vi +3.3V（请勿接3.3V以上电源，否则烧毁模块！）
TX 2
RX 3
GND GND
*/
#include <Adafruit_Fingerprint.h>
// 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);
void setup()
{
Serial.begin(9600);
while (!Serial); // For Yun/Leo/Micro/Zero/...
delay(100);
Serial.println("\n\nDelete Finger");
// 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);
}
}
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("lease type in the ID # (from 1 to 127) you want to delete...");
uint8_t id = readnumber();
if (id == 0) {// ID #0 not allowed, try again!
return;
}
Serial.print("Deleting ID #");
Serial.println(id);
deleteFingerprint(id);
}
uint8_t deleteFingerprint(uint8_t id) {
uint8_t p = -1;
p = finger.deleteModel(id);
if (p == FINGERPRINT_OK) {
Serial.println("Deleted!");
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
Serial.println("Communication error");
return p;
} else if (p == FINGERPRINT_BADLOCATION) {
Serial.println("Could not delete in that location");
return p;
} else if (p == FINGERPRINT_FLASHERR) {
Serial.println("Error writing to flash");
return p;
} else {
Serial.print("Unknown error: 0x"); Serial.println(p, HEX);
return p;
}
}
Delete Finger
Found fingerprint sensor!
Please type in the ID # (from 1 to 127) you want to delete...
删除指纹
找到指纹传感器！
请输入要删除的ID（从1到127）……
删除ID#9
删除！
请输入要删除的ID（从1到127）。。。
删除ID#8
删除！
请输入要删除的ID（从1到127）。。。
删除ID#7
删除！
请输入要删除的ID（从1到127）。。。
删除ID#6
删除！
请输入要删除的ID（从1到127）。。。
删除ID#5
删除！
请输入要删除的ID（从1到127）。。。
删除ID#4
删除！
请输入要删除的ID（从1到127）。。。
删除ID#3
删除！
请输入要删除的ID（从1到127）。。。
实验之六：删除所有指纹模板
Arduino实验开源代码
/*
【Arduino】168种传感器模块系列实验（资料代码+仿真编程+图形编程）
实验一百四十一：AS608光学指纹识别模块 智能锁/考勤门禁开发/指纹采集模块
实验之六：删除所有指纹模板
安装库：IDE—工具—管理库—搜索Adafruit-Fingerprint-Sensor-Library—安装
实验接线：
Vi +3.3V（请勿接3.3V以上电源，否则烧毁模块！）
TX 2
RX 3
GND GND
*/
#include <Adafruit_Fingerprint.h>
// 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);
void setup()
{
Serial.begin(9600);
while (!Serial); // For Yun/Leo/Micro/Zero/...
delay(100);
Serial.println("\n\nDeleting all fingerprint templates!");
Serial.println("ress 'Y' key to continue");
while (1) {
if (Serial.available() && (Serial.read() == 'Y')) {
break;
}
}
// 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);
}
finger.emptyDatabase();
Serial.println("Now database is empty ");
}
void loop() {
}
正在删除所有指纹模板！
按“Y”键继续
模块接口
采用 8 芯 1.25 mm 间距单排插座，模块内部内置了手指探测电路，用户可读取状态引脚TCH（WAK）判断有无手指按下。
引脚号 名称 类型 功能描述
1 Vi In 模块电源正输入端+3.3V（请勿接3.3V以上电源，否则烧毁模块！）
2 TX Out 串行数据输出，接MCU或TTL串口的RX。
3 RX In 串行数据输入，接MCU或TTL串口的TX。
4 GND － 信号地。内部与电源地连接。
5 TCH Out 感应信号输出，默认高电平有效
6 UA In 触摸感应电源输入端，3.3v供电
7 D+ － USB D+
8 D- － USB D-
（7脚，8脚为USB信号线，使用串口控制模块时可以悬空不用）
附录：AS608光学指纹识别模块Adafruit_Fingerprint.h库文件
#ifndef ADAFRUIT_FINGERPRINT_H
#define ADAFRUIT_FINGERPRINT_H
/*!
* @file Adafruit_Fingerprint.h
*/
#include "Arduino.h"
#if defined(__AVR__) || defined(ESP8266)
#include <SoftwareSerial.h>
#elif defined(FREEDOM_E300_HIFIVE1)
#include <SoftwareSerial32.h>
#define SoftwareSerial SoftwareSerial32
#endif
#define FINGERPRINT_OK 0x00 //!< Command execution is complete
#define FINGERPRINT_PACKETRECIEVEERR 0x01 //!< Error when receiving data package
#define FINGERPRINT_NOFINGER 0x02 //!< No finger on the sensor
#define FINGERPRINT_IMAGEFAIL 0x03 //!< Failed to enroll the finger
#define FINGERPRINT_IMAGEMESS \
0x06 //!< Failed to generate character file due to overly disorderly
//!< fingerprint image
#define FINGERPRINT_FEATUREFAIL \
0x07 //!< Failed to generate character file due to the lack of character point
//!< or small fingerprint image
#define FINGERPRINT_NOMATCH 0x08 //!< Finger doesn't match
#define FINGERPRINT_NOTFOUND 0x09 //!< Failed to find matching finger
#define FINGERPRINT_ENROLLMISMATCH \
0x0A //!< Failed to combine the character files
#define FINGERPRINT_BADLOCATION \
0x0B //!< Addressed PageID is beyond the finger library
#define FINGERPRINT_DBRANGEFAIL \
0x0C //!< Error when reading template from library or invalid template
#define FINGERPRINT_UPLOADFEATUREFAIL 0x0D //!< Error when uploading template
#define FINGERPRINT_PACKETRESPONSEFAIL \
0x0E //!< Module failed to receive the following data packages
#define FINGERPRINT_UPLOADFAIL 0x0F //!< Error when uploading image
#define FINGERPRINT_DELETEFAIL 0x10 //!< Failed to delete the template
#define FINGERPRINT_DBCLEARFAIL 0x11 //!< Failed to clear finger library
#define FINGERPRINT_PASSFAIL \
0x13 //!< Find whether the fingerprint passed or failed
#define FINGERPRINT_INVALIDIMAGE \
0x15 //!< Failed to generate image because of lac of valid primary image
#define FINGERPRINT_FLASHERR 0x18 //!< Error when writing flash
#define FINGERPRINT_INVALIDREG 0x1A //!< Invalid register number
#define FINGERPRINT_ADDRCODE 0x20 //!< Address code
#define FINGERPRINT_PASSVERIFY 0x21 //!< Verify the fingerprint passed
#define FINGERPRINT_STARTCODE \
0xEF01 //!< Fixed falue of EF01H; High byte transferred first
#define FINGERPRINT_COMMANDPACKET 0x1 //!< Command packet
#define FINGERPRINT_DATAPACKET \
0x2 //!< Data packet, must follow command packet or acknowledge packet
#define FINGERPRINT_ACKPACKET 0x7 //!< Acknowledge packet
#define FINGERPRINT_ENDDATAPACKET 0x8 //!< End of data packet
#define FINGERPRINT_TIMEOUT 0xFF //!< Timeout was reached
#define FINGERPRINT_BADPACKET 0xFE //!< Bad packet was sent
#define FINGERPRINT_GETIMAGE 0x01 //!< Collect finger image
#define FINGERPRINT_IMAGE2TZ 0x02 //!< Generate character file from image
#define FINGERPRINT_SEARCH 0x04 //!< Search for fingerprint in slot
#define FINGERPRINT_REGMODEL \
0x05 //!< Combine character files and generate template
#define FINGERPRINT_STORE 0x06 //!< Store template
#define FINGERPRINT_LOAD 0x07 //!< Read/load template
#define FINGERPRINT_UPLOAD 0x08 //!< Upload template
#define FINGERPRINT_DELETE 0x0C //!< Delete templates
#define FINGERPRINT_EMPTY 0x0D //!< Empty library
#define FINGERPRINT_READSYSPARAM 0x0F //!< Read system parameters
#define FINGERPRINT_SETPASSWORD 0x12 //!< Sets passwords
#define FINGERPRINT_VERIFYPASSWORD 0x13 //!< Verifies the password
#define FINGERPRINT_HISPEEDSEARCH \
0x1B //!< Asks the sensor to search for a matching fingerprint template to the
//!< last model generated
#define FINGERPRINT_TEMPLATECOUNT 0x1D //!< Read finger template numbers
#define FINGERPRINT_AURALEDCONFIG 0x35 //!< Aura LED control
#define FINGERPRINT_LEDON 0x50 //!< Turn on the onboard LED
#define FINGERPRINT_LEDOFF 0x51 //!< Turn off the onboard LED
#define FINGERPRINT_LED_BREATHING 0x01 //!< Breathing light
#define FINGERPRINT_LED_FLASHING 0x02 //!< Flashing light
#define FINGERPRINT_LED_ON 0x03 //!< Always on
#define FINGERPRINT_LED_OFF 0x04 //!< Always off
#define FINGERPRINT_LED_GRADUAL_ON 0x05 //!< Gradually on
#define FINGERPRINT_LED_GRADUAL_OFF 0x06 //!< Gradually off
#define FINGERPRINT_LED_RED 0x01 //!< Red LED
#define FINGERPRINT_LED_BLUE 0x02 //!< Blue LED
#define FINGERPRINT_LED_PURPLE 0x03 //!< Purple LED
//#define FINGERPRINT_DEBUG
#define DEFAULTTIMEOUT 1000 //!< UART reading timeout in milliseconds
///! Helper class to craft UART packets
struct Adafruit_Fingerprint_Packet {
/**************************************************************************/
/*!
[url=home.php?mod=space&uid=31641]@Brief[/url] Create a new UART-borne packet
@param type Command, data, ack type packet
@param length Size of payload
@param data Pointer to bytes of size length we will memcopy into the
internal buffer
*/
/**************************************************************************/
Adafruit_Fingerprint_Packet(uint8_t type, uint16_t length, uint8_t *data) {
this->start_code = FINGERPRINT_STARTCODE;
this->type = type;
this->length = length;
address[0] = 0xFF;
address[1] = 0xFF;
address[2] = 0xFF;
address[3] = 0xFF;
if (length < 64)
memcpy(this->data, data, length);
else
memcpy(this->data, data, 64);
}
uint16_t start_code; ///< "Wakeup" code for packet detection
uint8_t address[4]; ///< 32-bit Fingerprint sensor address
uint8_t type; ///< Type of packet
uint16_t length; ///< Length of packet
uint8_t data[64]; ///< The raw buffer for packet payload
};
///! Helper class to communicate with and keep state for fingerprint sensors
class Adafruit_Fingerprint {
public:
#if defined(__AVR__) || defined(ESP8266) || defined(FREEDOM_E300_HIFIVE1)
Adafruit_Fingerprint(SoftwareSerial *ss, uint32_t password = 0x0);
#endif
Adafruit_Fingerprint(HardwareSerial *hs, uint32_t password = 0x0);
Adafruit_Fingerprint(Stream *serial, uint32_t password = 0x0);
void begin(uint32_t baud);
boolean verifyPassword(void);
uint8_t getParameters(void);
uint8_t getImage(void);
uint8_t image2Tz(uint8_t slot = 1);
uint8_t createModel(void);
uint8_t emptyDatabase(void);
uint8_t storeModel(uint16_t id);
uint8_t loadModel(uint16_t id);
uint8_t getModel(void);
uint8_t deleteModel(uint16_t id);
uint8_t fingerFastSearch(void);
uint8_t fingerSearch(uint8_t slot = 1);
uint8_t getTemplateCount(void);
uint8_t setPassword(uint32_t password);
uint8_t LEDcontrol(bool on);
uint8_t LEDcontrol(uint8_t control, uint8_t speed, uint8_t coloridx,
uint8_t count = 0);
void writeStructuredPacket(const Adafruit_Fingerprint_Packet &p);
uint8_t getStructuredPacket(Adafruit_Fingerprint_Packet *p,
uint16_t timeout = DEFAULTTIMEOUT);
/// The matching location that is set by fingerFastSearch()
uint16_t fingerID;
/// The confidence of the fingerFastSearch() match, higher numbers are more
/// confidents
uint16_t confidence;
/// The number of stored templates in the sensor, set by getTemplateCount()
uint16_t templateCount;
uint16_t status_reg = 0x0; ///< The status register (set by getParameters)
uint16_t system_id = 0x0; ///< The system identifier (set by getParameters)
uint16_t capacity = 64; ///< The fingerprint capacity (set by getParameters)
uint16_t security_level = 0; ///< The security level (set by getParameters)
uint32_t device_addr =
0xFFFFFFFF; ///< The device address (set by getParameters)
uint16_t packet_len = 64; ///< The max packet length (set by getParameters)
uint16_t baud_rate = 57600; ///< The UART baud rate (set by getParameters)
private:
uint8_t checkPassword(void);
uint32_t thePassword;
uint32_t theAddress;
uint8_t recvPacket[20];
Stream *mySerial;
#if defined(__AVR__) || defined(ESP8266) || defined(FREEDOM_E300_HIFIVE1)
SoftwareSerial *swSerial;
#endif
HardwareSerial *hwSerial;
};
#endif
AS608光学指纹识别模块Adafruit_Fingerprint.cpp库文件
/*!
* @file Adafruit_Fingerprint.cpp
*
* @mainpage Adafruit Fingerprint Sensor Library
*
* @section intro_sec Introduction
*
* This is a library for our optical Fingerprint sensor
*
* Designed specifically to work with the Adafruit Fingerprint sensor
* ----> 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!
*
* @section author Author
*
* Written by Limor Fried/Ladyada for Adafruit Industries.
*
* @section license License
*
* BSD license, all text above must be included in any redistribution
*
*/
#include "Adafruit_Fingerprint.h"
//#define FINGERPRINT_DEBUG
/*!
* [url=home.php?mod=space&uid=31641]@Brief[/url] Gets the command packet
*/
#define GET_CMD_PACKET(...) \
uint8_t data[] = {__VA_ARGS__}; \
Adafruit_Fingerprint_Packet packet(FINGERPRINT_COMMANDPACKET, sizeof(data), \
data); \
writeStructuredPacket(packet); \
if (getStructuredPacket(&packet) != FINGERPRINT_OK) \
return FINGERPRINT_PACKETRECIEVEERR; \
if (packet.type != FINGERPRINT_ACKPACKET) \
return FINGERPRINT_PACKETRECIEVEERR;
/*!
* @brief Sends the command packet
*/
#define SEND_CMD_PACKET(...) \
GET_CMD_PACKET(__VA_ARGS__); \
return packet.data[0];
/***************************************************************************
PUBLIC FUNCTIONS
***************************************************************************/
#if defined(__AVR__) || defined(ESP8266) || defined(FREEDOM_E300_HIFIVE1)
/**************************************************************************/
/*!
@brief Instantiates sensor with Software Serial
@param ss Pointer to SoftwareSerial object
@param password 32-bit integer password (default is 0)
*/
/**************************************************************************/
Adafruit_Fingerprint::Adafruit_Fingerprint(SoftwareSerial *ss,
uint32_t password) {
thePassword = password;
theAddress = 0xFFFFFFFF;
hwSerial = NULL;
swSerial = ss;
mySerial = swSerial;
}
#endif
/**************************************************************************/
/*!
@brief Instantiates sensor with Hardware Serial
@param hs Pointer to HardwareSerial object
@param password 32-bit integer password (default is 0)
*/
/**************************************************************************/
Adafruit_Fingerprint::Adafruit_Fingerprint(HardwareSerial *hs,
uint32_t password) {
thePassword = password;
theAddress = 0xFFFFFFFF;
#if defined(__AVR__) || defined(ESP8266) || defined(FREEDOM_E300_HIFIVE1)
swSerial = NULL;
#endif
hwSerial = hs;
mySerial = hwSerial;
}
/**************************************************************************/
/*!
@brief Instantiates sensor with a stream for Serial
@param serial Pointer to a Stream object
@param password 32-bit integer password (default is 0)
*/
/**************************************************************************/
Adafruit_Fingerprint::Adafruit_Fingerprint(Stream *serial, uint32_t password) {
thePassword = password;
theAddress = 0xFFFFFFFF;
hwSerial = NULL;
#if defined(__AVR__) || defined(ESP8266) || defined(FREEDOM_E300_HIFIVE1)
swSerial = NULL;
#endif
mySerial = serial;
}
/**************************************************************************/
/*!
@brief Initializes serial interface and baud rate
@param baudrate Sensor's UART baud rate (usually 57600, 9600 or 115200)
*/
/**************************************************************************/
void Adafruit_Fingerprint::begin(uint32_t baudrate) {
delay(1000); // one second delay to let the sensor 'boot up'
if (hwSerial)
hwSerial->begin(baudrate);
#if defined(__AVR__) || defined(ESP8266) || defined(FREEDOM_E300_HIFIVE1)
if (swSerial)
swSerial->begin(baudrate);
#endif
}
/**************************************************************************/
/*!
@brief Verifies the sensors' access password (default password is
0x0000000). A good way to also check if the sensors is active and responding
@returns True if password is correct
*/
/**************************************************************************/
boolean Adafruit_Fingerprint::verifyPassword(void) {
return checkPassword() == FINGERPRINT_OK;
}
uint8_t Adafruit_Fingerprint::checkPassword(void) {
GET_CMD_PACKET(FINGERPRINT_VERIFYPASSWORD, (uint8_t)(thePassword >> 24),
(uint8_t)(thePassword >> 16), (uint8_t)(thePassword >> 8),
(uint8_t)(thePassword & 0xFF));
if (packet.data[0] == FINGERPRINT_OK)
return FINGERPRINT_OK;
else
return FINGERPRINT_PACKETRECIEVEERR;
}
/**************************************************************************/
/*!
@brief Get the sensors parameters, fills in the member variables
status_reg, system_id, capacity, security_level, device_addr, packet_len
and baud_rate
@returns True if password is correct
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::getParameters(void) {
GET_CMD_PACKET(FINGERPRINT_READSYSPARAM);
status_reg = ((uint16_t)packet.data[1] << 8) | packet.data[2];
system_id = ((uint16_t)packet.data[3] << 8) | packet.data[4];
capacity = ((uint16_t)packet.data[5] << 8) | packet.data[6];
security_level = ((uint16_t)packet.data[7] << 8) | packet.data[8];
device_addr = ((uint32_t)packet.data[9] << 24) |
((uint32_t)packet.data[10] << 16) |
((uint32_t)packet.data[11] << 8) | (uint32_t)packet.data[12];
packet_len = ((uint16_t)packet.data[13] << 8) | packet.data[14];
if (packet_len == 0) {
packet_len = 32;
} else if (packet_len == 1) {
packet_len = 64;
} else if (packet_len == 2) {
packet_len = 128;
} else if (packet_len == 3) {
packet_len = 256;
}
baud_rate = (((uint16_t)packet.data[15] << 8) | packet.data[16]) * 9600;
return packet.data[0];
}
/**************************************************************************/
/*!
@brief Ask the sensor to take an image of the finger pressed on surface
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_NOFINGER</code> if no finger detected
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
@returns <code>FINGERPRINT_IMAGEFAIL</code> on imaging error
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::getImage(void) {
SEND_CMD_PACKET(FINGERPRINT_GETIMAGE);
}
/**************************************************************************/
/*!
@brief Ask the sensor to convert image to feature template
@param slot Location to place feature template (put one in 1 and another in
2 for verification to create model)
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_IMAGEMESS</code> if image is too messy
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
@returns <code>FINGERPRINT_FEATUREFAIL</code> on failure to identify
fingerprint features
@returns <code>FINGERPRINT_INVALIDIMAGE</code> on failure to identify
fingerprint features
*/
uint8_t Adafruit_Fingerprint::image2Tz(uint8_t slot) {
SEND_CMD_PACKET(FINGERPRINT_IMAGE2TZ, slot);
}
/**************************************************************************/
/*!
@brief Ask the sensor to take two print feature template and create a
model
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
@returns <code>FINGERPRINT_ENROLLMISMATCH</code> on mismatch of fingerprints
*/
uint8_t Adafruit_Fingerprint::createModel(void) {
SEND_CMD_PACKET(FINGERPRINT_REGMODEL);
}
/**************************************************************************/
/*!
@brief Ask the sensor to store the calculated model for later matching
@param location The model location #
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_BADLOCATION</code> if the location is invalid
@returns <code>FINGERPRINT_FLASHERR</code> if the model couldn't be written
to flash memory
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
uint8_t Adafruit_Fingerprint::storeModel(uint16_t location) {
SEND_CMD_PACKET(FINGERPRINT_STORE, 0x01, (uint8_t)(location >> 8),
(uint8_t)(location & 0xFF));
}
/**************************************************************************/
/*!
@brief Ask the sensor to load a fingerprint model from flash into buffer 1
@param location The model location #
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_BADLOCATION</code> if the location is invalid
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
uint8_t Adafruit_Fingerprint::loadModel(uint16_t location) {
SEND_CMD_PACKET(FINGERPRINT_LOAD, 0x01, (uint8_t)(location >> 8),
(uint8_t)(location & 0xFF));
}
/**************************************************************************/
/*!
@brief Ask the sensor to transfer 256-byte fingerprint template from the
buffer to the UART
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
uint8_t Adafruit_Fingerprint::getModel(void) {
SEND_CMD_PACKET(FINGERPRINT_UPLOAD, 0x01);
}
/**************************************************************************/
/*!
@brief Ask the sensor to delete a model in memory
@param location The model location #
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_BADLOCATION</code> if the location is invalid
@returns <code>FINGERPRINT_FLASHERR</code> if the model couldn't be written
to flash memory
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
uint8_t Adafruit_Fingerprint::deleteModel(uint16_t location) {
SEND_CMD_PACKET(FINGERPRINT_DELETE, (uint8_t)(location >> 8),
(uint8_t)(location & 0xFF), 0x00, 0x01);
}
/**************************************************************************/
/*!
@brief Ask the sensor to delete ALL models in memory
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_BADLOCATION</code> if the location is invalid
@returns <code>FINGERPRINT_FLASHERR</code> if the model couldn't be written
to flash memory
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
uint8_t Adafruit_Fingerprint::emptyDatabase(void) {
SEND_CMD_PACKET(FINGERPRINT_EMPTY);
}
/**************************************************************************/
/*!
@brief Ask the sensor to search the current slot 1 fingerprint features to
match saved templates. The matching location is stored in <b>fingerID</b> and
the matching confidence in <b>confidence</b>
@returns <code>FINGERPRINT_OK</code> on fingerprint match success
@returns <code>FINGERPRINT_NOTFOUND</code> no match made
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::fingerFastSearch(void) {
// high speed search of slot #1 starting at page 0x0000 and page #0x00A3
GET_CMD_PACKET(FINGERPRINT_HISPEEDSEARCH, 0x01, 0x00, 0x00, 0x00, 0xA3);
fingerID = 0xFFFF;
confidence = 0xFFFF;
fingerID = packet.data[1];
fingerID <<= 8;
fingerID |= packet.data[2];
confidence = packet.data[3];
confidence <<= 8;
confidence |= packet.data[4];
return packet.data[0];
}
/**************************************************************************/
/*!
@brief Control the built in LED
@param on True if you want LED on, False to turn LED off
@returns <code>FINGERPRINT_OK</code> on success
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::LEDcontrol(bool on) {
if (on) {
SEND_CMD_PACKET(FINGERPRINT_LEDON);
} else {
SEND_CMD_PACKET(FINGERPRINT_LEDOFF);
}
}
/**************************************************************************/
/*!
@brief Control the built in Aura LED (if exists). Check datasheet/manual
for different colors and control codes available
@param control The control code (e.g. breathing, full on)
@param speed How fast to go through the breathing/blinking cycles
@param coloridx What color to light the indicator
@param count How many repeats of blinks/breathing cycles
@returns <code>FINGERPRINT_OK</code> on fingerprint match success
@returns <code>FINGERPRINT_NOTFOUND</code> no match made
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::LEDcontrol(uint8_t control, uint8_t speed,
uint8_t coloridx, uint8_t count) {
SEND_CMD_PACKET(FINGERPRINT_AURALEDCONFIG, control, speed, coloridx, count);
}
/**************************************************************************/
/*!
@brief Ask the sensor to search the current slot fingerprint features to
match saved templates. The matching location is stored in <b>fingerID</b> and
the matching confidence in <b>confidence</b>
@param slot The slot to use for the print search, defaults to 1
@returns <code>FINGERPRINT_OK</code> on fingerprint match success
@returns <code>FINGERPRINT_NOTFOUND</code> no match made
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::fingerSearch(uint8_t slot) {
// search of slot starting thru the capacity
GET_CMD_PACKET(FINGERPRINT_SEARCH, slot, 0x00, 0x00, (uint8_t)(capacity >> 8),
(uint8_t)(capacity & 0xFF));
fingerID = 0xFFFF;
confidence = 0xFFFF;
fingerID = packet.data[1];
fingerID <<= 8;
fingerID |= packet.data[2];
confidence = packet.data[3];
confidence <<= 8;
confidence |= packet.data[4];
return packet.data[0];
}
/**************************************************************************/
/*!
@brief Ask the sensor for the number of templates stored in memory. The
number is stored in <b>templateCount</b> on success.
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::getTemplateCount(void) {
GET_CMD_PACKET(FINGERPRINT_TEMPLATECOUNT);
templateCount = packet.data[1];
templateCount <<= 8;
templateCount |= packet.data[2];
return packet.data[0];
}
/**************************************************************************/
/*!
@brief Set the password on the sensor (future communication will require
password verification so don't forget it!!!)
@param password 32-bit password code
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_PACKETRECIEVEERR</code> on communication error
*/
/**************************************************************************/
uint8_t Adafruit_Fingerprint::setPassword(uint32_t password) {
SEND_CMD_PACKET(FINGERPRINT_SETPASSWORD, (password >> 24), (password >> 16),
(password >> 8), password);
}
/**************************************************************************/
/*!
@brief Helper function to process a packet and send it over UART to the
sensor
@param packet A structure containing the bytes to transmit
*/
/**************************************************************************/
void Adafruit_Fingerprint::writeStructuredPacket(
const Adafruit_Fingerprint_Packet &packet) {
mySerial->write((uint8_t)(packet.start_code >> 8));
mySerial->write((uint8_t)(packet.start_code & 0xFF));
mySerial->write(packet.address[0]);
mySerial->write(packet.address[1]);
mySerial->write(packet.address[2]);
mySerial->write(packet.address[3]);
mySerial->write(packet.type);
uint16_t wire_length = packet.length + 2;
mySerial->write((uint8_t)(wire_length >> 8));
mySerial->write((uint8_t)(wire_length & 0xFF));
#ifdef FINGERPRINT_DEBUG
Serial.print("-> 0x");
Serial.print((uint8_t)(packet.start_code >> 8), HEX);
Serial.print(", 0x");
Serial.print((uint8_t)(packet.start_code & 0xFF), HEX);
Serial.print(", 0x");
Serial.print(packet.address[0], HEX);
Serial.print(", 0x");
Serial.print(packet.address[1], HEX);
Serial.print(", 0x");
Serial.print(packet.address[2], HEX);
Serial.print(", 0x");
Serial.print(packet.address[3], HEX);
Serial.print(", 0x");
Serial.print(packet.type, HEX);
Serial.print(", 0x");
Serial.print((uint8_t)(wire_length >> 8), HEX);
Serial.print(", 0x");
Serial.print((uint8_t)(wire_length & 0xFF), HEX);
#endif
uint16_t sum = ((wire_length) >> 8) + ((wire_length)&0xFF) + packet.type;
for (uint8_t i = 0; i < packet.length; i++) {
mySerial->write(packet.data[i]);
sum += packet.data[i];
#ifdef FINGERPRINT_DEBUG
Serial.print(", 0x");
Serial.print(packet.data[i], HEX);
#endif
}
mySerial->write((uint8_t)(sum >> 8));
mySerial->write((uint8_t)(sum & 0xFF));
#ifdef FINGERPRINT_DEBUG
Serial.print(", 0x");
Serial.print((uint8_t)(sum >> 8), HEX);
Serial.print(", 0x");
Serial.println((uint8_t)(sum & 0xFF), HEX);
#endif
return;
}
/**************************************************************************/
/*!
@brief Helper function to receive data over UART from the sensor and
process it into a packet
@param packet A structure containing the bytes received
@param timeout how many milliseconds we're willing to wait
@returns <code>FINGERPRINT_OK</code> on success
@returns <code>FINGERPRINT_TIMEOUT</code> or
<code>FINGERPRINT_BADPACKET</code> on failure
*/
/**************************************************************************/
uint8_t
Adafruit_Fingerprint::getStructuredPacket(Adafruit_Fingerprint_Packet *packet,
uint16_t timeout) {
uint8_t byte;
uint16_t idx = 0, timer = 0;
#ifdef FINGERPRINT_DEBUG
Serial.print("<- ");
#endif
while (true) {
while (!mySerial->available()) {
delay(1);
timer++;
if (timer >= timeout) {
#ifdef FINGERPRINT_DEBUG
Serial.println("Timed out");
#endif
return FINGERPRINT_TIMEOUT;
}
}
byte = mySerial->read();
#ifdef FINGERPRINT_DEBUG
Serial.print("0x");
Serial.print(byte, HEX);
Serial.print(", ");
#endif
switch (idx) {
case 0:
if (byte != (FINGERPRINT_STARTCODE >> 8))
continue;
packet->start_code = (uint16_t)byte << 8;
break;
case 1:
packet->start_code |= byte;
if (packet->start_code != FINGERPRINT_STARTCODE)
return FINGERPRINT_BADPACKET;
break;
case 2:
case 3:
case 4:
case 5:
packet->address[idx - 2] = byte;
break;
case 6:
packet->type = byte;
break;
case 7:
packet->length = (uint16_t)byte << 8;
break;
case 8:
packet->length |= byte;
break;
default:
packet->data[idx - 9] = byte;
if ((idx - 8) == packet->length) {
#ifdef FINGERPRINT_DEBUG
Serial.println(" OK ");
#endif
return FINGERPRINT_OK;
}
break;
}
idx++;
}
// Shouldn't get here so...
return FINGERPRINT_BADPACKET;
}
标签：动手做,Adafruit,Arduino,指纹识别,uint8,packet,FINGERPRINT,Serial,define From： https://www.cnblogs.com/eagler8/p/17543040.html