Friends,
I am new to Arduino and not from a programming background. I am working on a motorbike smart dashboard project for my degree. It includes security features like fingerprint and Real-time communication. I am using Arduino UNO, AS608 fingerprint sensor, relay, and some LEDs in the initial stage and further planning to connect it to the internet.
I am able to scan the fingerprints, control the relay using the buttons. I have two buttons one is a kill switch (on/off button) another one is a start switch (push button). Now I need to make the start button work if the fingerprint is matched only. If the fingerprint is matched start button can be used for 10 minutes then it should require a valid fingerprint again to use the button. Experts and experienced people, please help me.
#include <Adafruit_Fingerprint.h>
#if (defined(__AVR__) || defined(ESP8266)) && !defined(__AVR_ATmega2560__)
SoftwareSerial mySerial(2, 3);
const int Blue = 6;
const int Green = 7;
const int Red = 8;
const int PUSH_BUTTON_1 = 9;
const int PUSH_BUTTON_2 = 10;
const int RELAY_PIN_1 = 11;
const int RELAY_PIN_2 = 12;
int BUTTONstate1 = 0;
int BUTTONstate2 = 0;
int state = 0, relay2state=0;
volatile int finger_status = -1;
#else
// On Leonardo/M0/etc, others with hardware serial, use hardware serial!
// #0 is green wire, #1 is white
#define mySerial Serial1
#endif
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");
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(PUSH_BUTTON_1, INPUT_PULLUP);
pinMode(RELAY_PIN_1, OUTPUT); digitalWrite(RELAY_PIN_1, HIGH);
pinMode(PUSH_BUTTON_2, INPUT_PULLUP);
pinMode(RELAY_PIN_2, OUTPUT); digitalWrite(RELAY_PIN_2, HIGH);
finger.begin(57600);
delay(5);
if (finger.verifyPassword()) {
Serial.println("Found fingerprint sensor!");
}
else
{
Serial.println("Did not find fingerprint sensor :(");
while (1) { delay(1); }
}
Serial.println(F("Reading sensor parameters"));
finger.getParameters();
Serial.print(F("Status: 0x")); Serial.println(finger.status_reg, HEX);
Serial.print(F("Sys ID: 0x")); Serial.println(finger.system_id, HEX);
Serial.print(F("Capacity: ")); Serial.println(finger.capacity);
Serial.print(F("Security level: ")); Serial.println(finger.security_level);
Serial.print(F("Device address: ")); Serial.println(finger.device_addr, HEX);
Serial.print(F("Packet len: ")); Serial.println(finger.packet_len);
Serial.print(F("Baud rate: ")); Serial.println(finger.baud_rate);
finger.getTemplateCount();
if (finger.templateCount == 0) {
Serial.print("Sensor doesn't contain any fingerprint data. Please run the 'enroll' example.");
}
else {
Serial.println("Waiting for valid finger...");
Serial.print("Sensor contains "); Serial.print(finger.templateCount); Serial.println(" templates");
}
}
void button() {
BUTTONstate1 = digitalRead(PUSH_BUTTON_1); // read new state
BUTTONstate2 = digitalRead(PUSH_BUTTON_2); // read new state
if (BUTTONstate1 == HIGH) {
digitalWrite(RELAY_PIN_1, HIGH);
}
else
if (BUTTONstate1 == LOW) {
digitalWrite(RELAY_PIN_1, LOW);
}
if (state == 0 && BUTTONstate2 == HIGH) {
state = 1;
relay2state=!relay2state;
}
if (state == 1 && BUTTONstate2 == LOW) {
state = 0;
}
digitalWrite(RELAY_PIN_2, relay2state);
}
void fp ()
{
getFingerprintID();
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.fingerSearch();
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;
}
void loop() { // run over and over again
button();
fp();
}
