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pm:prj2022:agmocanu:liedetector [2022/06/01 19:51] teodora.nedelcu [Hardware Design] |
pm:prj2022:agmocanu:liedetector [2022/06/02 10:51] (current) teodora.nedelcu [Software Design] |
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| - | We use the button to start the measuring of the pulse and if its elevated the person lied. A message will appear on the display with the result. | + | We start the measuring of the pulse and if its elevated the person lied. A message will appear on the display with the result. |
| + | {{:pm:prj2022:agmocanu:nedelcu.jpeg?800|}} | ||
| ===== Hardware Design ===== | ===== Hardware Design ===== | ||
| Line 22: | Line 22: | ||
| * Cables | * Cables | ||
| + | {{:pm:prj2022:agmocanu:lala.jpeg?600|}} | ||
| ===== Software Design ===== | ===== Software Design ===== | ||
| + | The code displays on LCD the amount of beats per minute calculated by the pulse sensor. | ||
| + | I used the following libraries: | ||
| + | 1. For the LCD display | ||
| + | LiquidCrystal_I2C.h | ||
| + | Wire.h | ||
| + | |||
| + | 2. For the pulse sensor | ||
| + | PulseSensorPlayground.h | ||
| + | |||
| + | |||
| + | | ||
| + | Code: | ||
| + | #define USE_ARDUINO_INTERRUPTS true | ||
| + | #include <PulseSensorPlayground.h> | ||
| + | #include <LiquidCrystal_I2C.h> | ||
| + | #include <Wire.h> | ||
| - | ===== Rezultate Obţinute ===== | + | const int PulseWire = 0; |
| + | int Threshold = 550; | ||
| + | |||
| + | LiquidCrystal_I2C lcd(0x27,16,2); | ||
| + | |||
| + | PulseSensorPlayground pulseSensor; | ||
| + | void setup() { | ||
| + | lcd.init(); | ||
| + | Serial.begin(9600); | ||
| + | pulseSensor.analogInput(PulseWire); | ||
| + | pulseSensor.setThreshold(Threshold); | ||
| + | if (pulseSensor.begin()) { | ||
| + | Serial.println("We created a pulseSensor Object !"); | ||
| + | } | ||
| + | |||
| + | } | ||
| + | |||
| + | void loop() { | ||
| + | int myBPM = pulseSensor.getBeatsPerMinute(); | ||
| + | if (pulseSensor.sawStartOfBeat()) { | ||
| + | Serial.println("♥ A HeartBeat Happened ! "); | ||
| + | lcd.backlight(); | ||
| + | lcd.setCursor(0, 0); | ||
| + | lcd.print("BPM"); | ||
| + | lcd.setCursor(0, 1); | ||
| + | if (myBPM < 100){ | ||
| + | lcd.print(" "); | ||
| + | lcd.print(myBPM); | ||
| + | lcd.setCursor(4,1); | ||
| + | lcd.print(" "); | ||
| + | }else{ | ||
| + | lcd.print(myBPM); | ||
| + | lcd.setCursor(4,1); | ||
| + | lcd.print("Lie"); | ||
| + | | ||
| + | } | ||
| + | Serial.println(myBPM); | ||
| + | } | ||
| + | delay(20); | ||
| + | |||
| + | } | ||
| + | | ||
| + | |||
| + | |||
| + | ===== Rezultate Obţinute ===== | ||
| + | {{:pm:prj2022:agmocanu:LIEDETECT.jpeg?400|}} {{:pm:prj2022:agmocanu:LIEDETECT2.jpeg?500|}} | ||
| ===== Concluzii ===== | ===== Concluzii ===== | ||
| + | This project taught me how to use Arduino, LCD display and a pulse sensor. I think it would be fun to try and build different useful things this way. | ||
| - | ===== Download ===== | ||
| - | ===== Jurnal ===== | ||
| Line 43: | Line 103: | ||
| ===== Bibliografie/Resurse ===== | ===== Bibliografie/Resurse ===== | ||
| + | https://how2electronics.com/ | ||
| + | |||
| + | https://arduino.cc/ | ||
| + | http://robojax.com/node/921 | ||
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