ESP32_OSC_IMU/lib/M5Stack/examples/Face/FINGER/FINGER.ino

#include <M5Stack.h>
#include "finger.h"

uint8_t userNum;           //User number
FingerPrint FP_M;

void CleanScreen()
{
    M5.Lcd.setTextColor(WHITE);
    M5.Lcd.fillRect(0,50,400,300,BLACK);
    M5.Lcd.setCursor(0, 50); 
    M5.Lcd.setTextSize(2);
    userNum = FP_M.fpm_getUserNum();
    M5.Lcd.print("userNum:");
    M5.Lcd.println(userNum);
}

void setup() {
    M5.begin();
    M5.Power.begin();
    Serial.begin(115200);
    Serial2.begin(19200, SERIAL_8N1, 16, 17);
    pinMode(5, OUTPUT);
    pinMode(26, OUTPUT);
    digitalWrite(5, 1);
    digitalWrite(26, 1);
    M5.Lcd.clear(BLACK);
    M5.Lcd.setTextColor(YELLOW);
    M5.Lcd.setTextFont(2);
    M5.Lcd.setTextSize(3);
    M5.Lcd.setCursor(20, 0); 
    M5.Lcd.println("Finger example");
    Serial.printf("Finger example\n");
    M5.Lcd.setTextColor(WHITE);
    M5.Lcd.fillRect(0,50,400,300,BLACK);
    M5.Lcd.setCursor(0, 50); 
    M5.Lcd.setTextSize(2);
    userNum = FP_M.fpm_getUserNum();  
    M5.Lcd.print("userNum:");
    M5.Lcd.println(userNum);
}

//ButtonA: Add user
//ButtonB: Matching
//ButtonC: Delete All User
void loop(){
    uint8_t res1;
    if(M5.BtnA.wasPressed()){
        CleanScreen();
        M5.Lcd.println("Fingerprint Typing");
        
        res1 = FP_M.fpm_addUser(userNum,1);
        if(res1 == ACK_SUCCESS){
            M5.Lcd.println("Success");
        }
        else if(res1 == ACK_FAIL){
            M5.Lcd.println("Fail");
        }
        else if(res1 == ACK_FULL){
            M5.Lcd.println("Full");
        }
        else{
            M5.Lcd.println("Timeout");
        }
        userNum++;
    }

    if(M5.BtnB.wasPressed()){
      CleanScreen();
      M5.Lcd.println("Matching");
      
      res1 = FP_M.fpm_compareFinger();
      if(res1 == ACK_SUCCESS){
          M5.Lcd.println("Success");
      }
      if(res1 == ACK_NOUSER){
          M5.Lcd.println("No Such User");
      }
      if(res1 == ACK_TIMEOUT){
          M5.Lcd.println("Timeout");
      }
    }

    if(M5.BtnC.wasPressed()){
      res1 = FP_M.fpm_deleteAllUser();
      CleanScreen();
      
      if(res1 == ACK_SUCCESS){
          M5.Lcd.println("Delete All User Successful");
      }
      else{
          M5.Lcd.println("Delete All User Failed");
      }
    }
    M5.update();
}