I Built a Lie Detector in Tinkercad! (Arduino Polygraph)

Build a Working Lie Detector Polygraph with Arduino & Tinkercad! 🕵️‍♂️📈 In this step-by-step Tinkercad tutorial, we are building a high-stakes interrogation lie detector! I will show you exactly how to wire a Potentiometer to act as a biometric stress sensor, along with an I2C LCD, LEDs, and a Piezo buzzer for a cinematic lockdown sequence. When your suspect starts sweating and pushes the dial past the 80% stress threshold, the machine locks onto the lie! Our custom C++ code triggers a harsh alarm, flashes a red LED, and prints "LIE DETECTED!" on the screen. You will also learn an incredible Arduino cheat code: how to use the map() function and custom byte arrays to draw a live, animating bar graph directly onto your LCD! 👨‍💻 GET THE ARDUINO C++ CODE HERE: https://pastebin.com/0pnCUqG4 👇 SUPPORT THE CHANNEL: If this Arduino tutorial helped you out, make sure to hit that LIKE button and SUBSCRIBE to Kyle Tech for more epic robotics, spy gadgets, and C++ coding projects! Let me know in the comments: who are you going to test this lie detector on first? #Tinkercad #Arduino #SpyTech #Robotics #ArduinoProject #LieDetector #Polygraph #KyleTech #STEM #CodingForBeginners #ArduinoLCD