Features

• GROVE Compatible Interface

• FPC1020 CMOS fingerprint sensor

• Best in class imaging quality with 256 true grey scale values in every pixel

• Robust protective coating capable of more than 10 million finger placements

• Full ESD protection to more than ±30kV

• 200 byte fingerprint template

• 1:N Identification (One-to-Many)

• 1:1 Verification (One-to-One)

• Auto-learning function (Automatically updating the fingerprint features)

• Security level setting

• TTL serial interface

Specifications

• Resolutions: 508 DPI

• Fingerprint store capacity: 100 fingerprints

• Verification time: < 0.45 sec

• Identification time: < 0.45 sec

• False accept rate (FAR): < 0.0001%

• False reject rate (FRR): < 0.01%

• Interface: Serial UART, 19200 bps (default)

• Baud rate: 9600, 19200, 38400, 57600, 115200 bps

• Working current: < 50mA

• Standby current: < 10μA

• Supply voltage: DC  5V

• Digital I/O voltage: 2.8V ~ 5V DC

• Operating temperature: - 20℃ ~ 60℃

• Operating humidity: 20% ~ 80%

Package Includes

• 1 x Fingerprint Sensor with Controller Board

• 1 x Grove Cable

• 1 x Breakout Cable

Pin  Configuration

Pin Definitions

Arduino Demo

Hooking up

There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines.

• VCC           →   5V
• UART_RX  →   Digital 2
• UART_TX  →   Digital 3
• GND          →  GND

Installation

• Download FPC1020.zip
• Unzip, and add to Arduino/hardware/libraries/

Sketch Code

//// Demo code for FPC1020 Fingerprint Sensor// Created by Deray on 2015-10-07.//#include <SoftwareSerial.h>#include <FPC1020.h>extern unsigned char l_ucFPID;extern unsigned char rBuf[192]; //Receive return data#define sw_serial_rx_pin 2 // Connect this pin to TX on the FPC1020#define sw_serial_tx_pin 3 // Connect this pin to RX on the FPC1020SoftwareSerial swSerial(sw_serial_rx_pin, sw_serial_tx_pin); // Fingerprint serial (RX, TX)FPC1020 Finger(&swSerial);void setup(){ Serial.begin(19200); pinMode(4, INPUT); // IRQ  Serial.println("Fingerprint Test ! ");}void loop(){ unsigned int User_ID = 0; unsigned char incomingNub; unsigned int matchUserID = 0; unsigned char rtf = 0;  while(1){ Serial.println("============== Menu ================"); Serial.println("Add a New User ----------------- 1"); Serial.println("Fingerprint Matching --------------- 2"); Serial.println("Get User Number and Print All User ID ------ 3 "); Serial.println("Delete Assigned User --------- 4"); Serial.println("Delete All User ---------- 5"); Serial.println("============== End =================");  unsigned char MODE = 0;  while(Serial.available()<=0);  MODE = Serial.read()-0x30;  switch(MODE){ case 0: // Null break;  case 1: // Fingerprint Input and Add a New User MODE = 0; User_ID = 0;  Serial.println("Please input the new user ID (0 ~ 99)."); while(Serial.available()<=0); delay(100); incomingNub = Serial.available(); for(char i=incomingNub; i>=1; i--){ User_ID = User_ID + (Serial.read()-0x30)*pow(10,(i-1)); }  Serial.println("Add Fingerprint, please put your finger on the Fingerprint Sensor."); rtf = Finger.Enroll(User_ID);  if(rtf == TRUE) {  Serial.print("Success, your User ID is: ");  Serial.println( User_ID , DEC); } else if (rtf == FALSE) { Serial.println("Failed, please try again."); } else if( rtf == ACK_USER_OCCUPIED){ Serial.println("Failed, this User ID alread exsits."); } else if( rtf == ACK_USER_EXIST){ Serial.println("Failed, this fingerprint alread exsits."); } delay(2000); break;  case 2: // Fingerprint Matching MODE = 0 ;  Serial.println("Mctch Fingerprint, please put your finger on the Sensor.");  if( Finger.Search()){ Serial.print("Success, your User ID is: ");  Serial.println( l_ucFPID, DEC); }  else { Serial.println("Failed, please try again."); }  delay(1000); break;  case 3: // Print all user ID MODE = 0; if(Finger.PrintUserID()){ Serial.print("Number of Fingerprint User is:");  unsigned char UserNumb; UserNumb = (l_ucFPID-2)/3;  Serial.println(UserNumb,DEC); Serial.println("Print all the User ID:");   for(char i = 0; i < UserNumb; i++){ Serial.println(rBuf[12+i*3],DEC); } }  else { Serial.println("Print User ID Fail!"); } delay(1000); break;  case 4: // Delete Assigned User ID MODE = 0; User_ID = 0; Serial.println("Please input the user ID(0 ~ 99) you want to delecte."); while(Serial.available()<=0); delay(100); incomingNub = Serial.available(); for(char i=incomingNub; i>=1; i--){ User_ID = User_ID + (Serial.read()-0x30)*pow(10,(i-1)); }  if(Finger.Delete(User_ID)) { Serial.println("Delete Fingerprint User Success!");  }  else{ Serial.println("Delete Fingerprint User Fail!"); } delay(1000); break;  case 5: // Delete All User ID  MODE = 0; unsigned char DeleteFlag = 0;  Serial.println("Delete All Users, Y/N ?");  for(unsigned char i=200; i>0; i--)//wait response info { delay(20); if(Serial.available()>0) { DeleteFlag = Serial.read(); break; } }  if(DeleteFlag == 'Y'||'y'){ if(Finger.Clear()){ Serial.println("Delete All Fingerprint User Success!"); } else{ Serial.println("Delete All Fingerprint User Fail!"); } } delay(500); break; } }}

Monitor report