If you're just getting started with Arduino, this is one of the best places to begin. The Arduino Uno already has a built-in LED connected to digital pin 13, so we don't even need a breadboard or external components. Upload this code: ********************************************** void setup() { pinMode(LED_BUILTIN, OUTPUT); } void loop() { digitalWrite(LED_BUILTIN, HIGH); delay(1000); digitalWrite(LED_BUILTIN, LOW); delay(1000); } **************************************** That's it! 🔥 The LED will: 💡 Turn ON for 1 second ⚫ Turn OFF for 1 second 🔁 Repeat continuously But this tiny program teaches several important Arduino concepts: 🔹 setup() — runs once when the Arduino starts 🔹 loop() — repeats continuously 🔹 pinMode() — configures a pin 🔹 digitalWrite() — controls an output 🔹 HIGH / LOW — turns the output ON or OFF 🔹 delay() — pauses the program for a specified time Try changing: delay(1000); to: delay(200); What happens? 😁 Experiment with different values and watch how the blink rate changes. Sometimes the best way to learn electronics is simply to BUILD something and start changing things. ⚡ CircuitWorks Lab BUILD • TEST • TROUBLESHOOT

Hi everyone. New pages added to the course. Please check it out. => https://www.skool.com/circuitworks-lab-7388/classroom/fe550f2a?md=0e495c7fab144377ab24ca83f0da504e

If you're excited to learn more about electrical/electronics engineering this is the place for you!⚡⚡😎 Please Introduce Yourself! - Your name - Skills/Knowledge - Interests - Goals Please feel free to share your projects and your current progress. We are here to support every member of the community.

Welcome to the community @Parth Wadkar . Thanks for joining. please introduce yourself and let us know what projects are working on right now.

At first glance, this looks like a magic trick. The LEDs are sitting inside a large copper loop, but there are no visible wires connecting them to a power supply. So where is the power coming from? The answer is ELECTROMAGNETIC INDUCTION. The large copper loop acts as a transmitting coil. When alternating current flows through it, it creates a changing magnetic field around and inside the loop. Now place a smaller receiving coil inside that changing magnetic field. According to Faraday's Law, a changing magnetic field passing through a coil induces a voltage: V = -N(dΦ/dt) That induced voltage can then be used to light an LED. This is why the individual LEDs don't need a physical electrical connection to the large coil. ⚡ Energy is being transferred through the magnetic field. The same basic principle appears in technologies such as: • Wireless phone chargers • Electric toothbrush chargers • RFID/NFC systems • Inductive sensors • Wireless power experiments And here's where it gets even more interesting. The transmitting coil can be combined with a capacitor to form a resonant LC circuit. Its resonant frequency is approximately: f = 1 / (2π√LC) Operating near resonance can make energy transfer much more effective. So this little LED demonstration actually introduces several important electronics concepts: 🔹 Faraday's Law 🔹 Electromagnetic induction 🔹 Inductive coupling 🔹 AC magnetic fields 🔹 LC resonance 🔹 Wireless power transfer Something that looks like a simple LED trick can teach quite a bit of electronics. 😁 Would you like us to BUILD our own low-voltage version here in CircuitWorks Lab? Comment “BUILD IT” if you want the schematic, component list, coil design, and step-by-step build. ⚡🔧 — CircuitWorks Lab BUILD • TEST • TROUBLESHOOT https://www.youtube.com/shorts/J5gkucexKxA