Arduino Projects
Ignition System Using Fingerprint And Alcohol Sensor
Step-by-Step Guide:Ignition System Using Fingerprint
Introduction
In this article, we will Explain how to create a bike ignition system using the Fingerprint R307 sensor, And MQ3 Alcohol sensor, With Arduino. This system Controls the car or bike irrigation system if the fingerprint will match then the iration system will start otherwise is not start.
Component Need
S.N | Component | Quantity | Link To Buy |
1 | Arduino Nano | 1 | |
2 | 16×2 LCD Display With I2C | 1 | |
3 | R-307 Fingerprint Sensor | 1 | |
4 | MQ-3 Sensor | 1 | |
5 | 1 channel Relay Module | 1 | |
6 | Push Button | 4 | |
7 | LED | 3 | |
8 | Zero PCB | 1 | |
9 | 9v Power supply | 1 |
Overview
- The project aims to protect the bike and cars to avoid accidents.
- This Project is soo many features, the system Will ensure that only authorized users who have valid fingerprints and are not Drink alcohol can start the bike.
- The project is various hardware and software components included in making the project. The hardware components are Arduino Nano, an R-307 fingerprint sensor module, an MQ-3 alcohol sensor, a 5v one-channel relay module, LEDs, and Push buttons.
- The Arduino Nano board controller and the R-307 fingerprint sensor module captures and verifies fingerprints. The MQ-3 alcohol sensor Find out the alcohol in the vicinity of the bike.
Circuit Diagram
Fingerprint R307 Sensor
- VCC: Connect 5V to the Arduino.
- GND: Connect to GND to the Arduino.
- RX: Connect digital pin 2 to the Arduino.
- TX: Connect digital pin 3 to the Arduino.
- INT: Not connected.
- RST: Not connected.
MQ3 Alcohol Sensor
- VCC: Connect 5V to the Arduino.
- GND: Connect to GND to the Arduino.
- AO: Connect analog input A0 to the Arduino.
- DO: Not used in the provided code.
16×2 LCD Display with I2C
- Connect the I2C data (SDA) and clock (SCL) lines to the corresponding A4 and A5 pins on the Arduino Nano board.
- The I2C backpack usually includes pull-up resistors, so external resistors are not required.
Other Components
- Connect the pins
enroll Push Button (4),delPush Button (5),up Push Button(6),down Push Button(7),openLed(8),closeLed (9),redled (10),relay Module (11), andAlcohol Sensor (A0)to the respective digital and analog pins on the Arduino Nano board.
Source Code
Important Library
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//Prateek //http://justdoelectronics.com #include <LiquidCrystal_I2C.h> #include <Wire.h> LiquidCrystal_I2C lcd(0x27, 16, 2); #include <SoftwareSerial.h> SoftwareSerial fingerPrint(2, 3); #include <Adafruit_Fingerprint.h> uint8_t id; Adafruit_Fingerprint finger = Adafruit_Fingerprint(&fingerPrint); #define enroll 4 #define del 5 #define up 6 #define down 7 #define openLight 8 #define closeLight 9 #define redled 10 #define relay 11 #define sensor A0 void setup() { delay(1000); pinMode(enroll, INPUT_PULLUP); pinMode(up, INPUT_PULLUP); pinMode(down, INPUT_PULLUP); pinMode(del, INPUT_PULLUP); pinMode(openLight, OUTPUT); pinMode(relay, OUTPUT); pinMode(closeLight, OUTPUT); pinMode(sensor, INPUT); pinMode(redled, OUTPUT); lcd.init(); lcd.backlight(); lcd.setCursor(0, 0); lcd.begin(16, 2); lcd.print(" Welcome To"); lcd.setCursor(0, 1); lcd.print("JustDoElectronics"); delay(2000); lcd.clear(); lcd.print("JustDoElectronic"); lcd.setCursor(0, 1); lcd.print("Prateek"); delay(2000); finger.begin(57600); Serial.begin(9600); lcd.clear(); lcd.print("Finding Module"); lcd.setCursor(0, 1); delay(1000); if (finger.verifyPassword()) { Serial.println("Found fingerprint sensor!"); lcd.clear(); lcd.print("Found Module "); delay(1000); } else { Serial.println("Did not find fingerprint sensor :("); lcd.clear(); lcd.print("module not Found"); lcd.setCursor(0, 1); lcd.print("Check Connections"); while (1) ; } } void loop() { float adcValue = 0; for (int i = 0; i < 10; i++) { adcValue += analogRead(sensor); delay(10); //Prateek //http://justdoelectronics.com } float v = (adcValue / 10) * (5.0 / 1024.0); float mgL = 0.67 * v; Serial.print("BAC:"); Serial.print(mgL); Serial.print(" mg/L"); //Prateek //http://justdoelectronics.com if (mgL > 1.3) { Serial.println(" Drunk"); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Driver Drink"); lcd.setCursor(0, 1); lcd.print("Is Not Allowed"); digitalWrite(redled, HIGH); digitalWrite(relay, LOW); digitalWrite(openLight, LOW); //Prateek //http://justdoelectronics.com while (1) ; } else { Serial.println(" Normal"); digitalWrite(redled, LOW); } lcd.setCursor(0, 0); lcd.print("Press UP/Down "); lcd.setCursor(0, 1); lcd.print("to start System"); digitalWrite(closeLight, HIGH); if (digitalRead(up) == 0 || digitalRead(down) == 0) { for (int i = 0; i < 5; i++) { lcd.clear(); lcd.print("Place Finger"); delay(2000); int result = getFingerprintIDez(); if (result >= 0) { digitalWrite(openLight, HIGH); digitalWrite(relay, HIGH); digitalWrite(closeLight, LOW); lcd.clear(); lcd.print("Allowed"); lcd.setCursor(0, 1); lcd.print("Gete Opened "); digitalWrite(closeLight, HIGH); // digitalWrite(openLight, LOW); //digitalWrite(relay, LOW); lcd.setCursor(0, 1); lcd.print("Gate Closed "); return; } } } checkKeys(); delay(1000); } void checkKeys() { if (digitalRead(enroll) == 0) { lcd.clear(); lcd.print("Please Wait"); delay(1000); while (digitalRead(enroll) == 0) ; //Prateek //http://justdoelectronics.com Enroll(); } else if (digitalRead(del) == 0) { lcd.clear(); lcd.print("Please Wait"); delay(1000); delet(); } } void Enroll() { int count = 0; lcd.clear(); lcd.print("Enroll Finger "); lcd.setCursor(0, 1); lcd.print("Location:"); while (1) { lcd.setCursor(9, 1); lcd.print(count); if (digitalRead(up) == 0) { count++; if (count > 25) count = 0; delay(500); } else if (digitalRead(down) == 0) { count--; if (count < 0) count = 25; delay(500); } else if (digitalRead(del) == 0) { id = count; getFingerprintEnroll(); return; } else if (digitalRead(enroll) == 0) { return; } } } void delet() { int count = 0; lcd.clear(); lcd.print("Delete Finger "); lcd.setCursor(0, 1); lcd.print("Location:"); while (1) { lcd.setCursor(9, 1); lcd.print(count); if (digitalRead(up) == 0) { count++; if (count > 25) count = 0; delay(500); } else if (digitalRead(down) == 0) { count--; if (count < 0) count = 25; delay(500); } else if (digitalRead(del) == 0) { id = count; deleteFingerprint(id); return; } else if (digitalRead(enroll) == 0) { return; } } } uint8_t getFingerprintEnroll() { int p = -1; lcd.clear(); lcd.print("finger ID:"); lcd.print(id); lcd.setCursor(0, 1); lcd.print("Place Finger"); delay(2000); while (p != FINGERPRINT_OK) { p = finger.getImage(); switch (p) { case FINGERPRINT_OK: Serial.println("Image taken"); lcd.clear(); lcd.print("Image taken"); break; case FINGERPRINT_NOFINGER: Serial.println("No Finger"); lcd.clear(); lcd.print("No Finger"); break; case FINGERPRINT_PACKETRECIEVEERR: Serial.println("Communication error"); lcd.clear(); lcd.print("Comm Error"); break; case FINGERPRINT_IMAGEFAIL: Serial.println("Imaging error"); lcd.clear(); lcd.print("Imaging Error"); break; default: Serial.println("Unknown error"); lcd.clear(); lcd.print("Unknown Error"); break; } } // OK success! p = finger.image2Tz(1); switch (p) { case FINGERPRINT_OK: Serial.println("Image converted"); lcd.clear(); lcd.print("Image converted"); break; case FINGERPRINT_IMAGEMESS: Serial.println("Image too messy"); lcd.clear(); lcd.print("Image too messy"); return p; case FINGERPRINT_PACKETRECIEVEERR: Serial.println("Communication error"); lcd.clear(); lcd.print("Comm Error"); return p; case FINGERPRINT_FEATUREFAIL: Serial.println("Could not find fingerprint features"); lcd.clear(); lcd.print("Feature Not Found"); return p; case FINGERPRINT_INVALIDIMAGE: Serial.println("Could not find fingerprint features"); lcd.clear(); lcd.print("Feature Not Found"); return p; default: Serial.println("Unknown error"); lcd.clear(); lcd.print("Unknown Error"); return p; } Serial.println("Remove finger"); lcd.clear(); lcd.print("Remove Finger"); delay(2000); p = 0; while (p != FINGERPRINT_NOFINGER) { p = finger.getImage(); } Serial.print("ID "); Serial.println(id); p = -1; Serial.println("Place same finger again"); lcd.clear(); lcd.print("Place Finger"); lcd.setCursor(0, 1); lcd.print(" Again"); while (p != FINGERPRINT_OK) { p = finger.getImage(); switch (p) { case FINGERPRINT_OK: Serial.println("Image taken"); break; case FINGERPRINT_NOFINGER: Serial.print("."); break; case FINGERPRINT_PACKETRECIEVEERR: Serial.println("Communication error"); break; case FINGERPRINT_IMAGEFAIL: Serial.println("Imaging error"); break; default: Serial.println("Unknown error"); return; } } // OK success! p = finger.image2Tz(2); 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! Serial.print("Creating model for #"); Serial.println(id); p = finger.createModel(); if (p == FINGERPRINT_OK) { Serial.println("Prints matched!"); } else if (p == FINGERPRINT_PACKETRECIEVEERR) { Serial.println("Communication error"); return p; } else if (p == FINGERPRINT_ENROLLMISMATCH) { Serial.println("Fingerprints did not match"); return p; } else { Serial.println("Unknown error"); return p; } Serial.print("ID "); Serial.println(id); p = finger.storeModel(id); if (p == FINGERPRINT_OK) { Serial.println("Stored!"); lcd.clear(); lcd.print("Stored!"); delay(2000); } else if (p == FINGERPRINT_PACKETRECIEVEERR) { Serial.println("Communication error"); return p; } else if (p == FINGERPRINT_BADLOCATION) { Serial.println("Could not store in that location"); return p; } else if (p == FINGERPRINT_FLASHERR) { Serial.println("Error writing to flash"); return p; } else { Serial.println("Unknown error"); return p; } } 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) { lcd.clear(); lcd.print("Finger Not Found"); lcd.setCursor(0, 1); lcd.print("Try Later"); delay(2000); return -1; } // found a match! Serial.print("Found ID #"); Serial.print(finger.fingerID); return finger.fingerID; } uint8_t deleteFingerprint(uint8_t id) { uint8_t p = -1; lcd.clear(); lcd.print("Please wait"); p = finger.deleteModel(id); if (p == FINGERPRINT_OK) { Serial.println("Deleted!"); lcd.clear(); lcd.print("Figer Deleted"); lcd.setCursor(0, 1); lcd.print("Successfully"); delay(1000); } else { Serial.print("Something Wrong"); lcd.clear(); lcd.print("Something Wrong"); lcd.setCursor(0, 1); lcd.print("Try Again Later"); delay(2000); return p; } } |
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Conclusion
In this article, we created a bike ignition system for the purpose of security and safety. The system confirms that only authorized individuals with clean alcohol readings can start the bike. This project demonstrates the inclusion the various sensors and modules into everyday devices to provide advanced features and functions.
Arduino Based Projects
Hi bro
I cant clearly see the nano board in circuit diagram
So can u plz send that seperatly to my mail
Plz