CAP-VIEW | Live Capacitor Monitoring with LCD & RGB Feedback

Watch a capacitor charge, discharge, and stabilize in real time — CAP-VIEW turns theory into live visuals with LCD and RGB feedback.

Welcome to Candade LabWorks
This channel brings hands-on electronics and IoT projects to life — from circuit fundamentals to embedded systems and beyond.

🔋 About This Project
CAP-VIEW is a real-time capacitor monitoring system that visualizes charging, discharging, and stable states using an LCD display and RGB LED feedback. With interactive visual cues and transistor-based discharge control, this project makes RC circuit theory come alive.

🧰 Components Used
- Arduino Uno / Nano
- Capacitor (e.g., 1000µF)
- BC548 Transistor
- RGB LED (Common Anode)
- 16x2 LCD Display
- Resistors (1kΩ base, 47kΩ charging, optional for LED)
- Breadboard + Jumper Wires

⚙️ Pin Connections
- Capacitor Voltage → A0
- BC548 (Discharge Control) → D2
- RGB LED → D5 (Red), D6 (Blue), D9 (Green)
- LCD → RS: 4, EN: 7, D4–D7: 8, 10, 11, 12

🎛️ Control Logic
- 🔴 Discharging: Voltage above 4.7V → Red LED + LCD message
- 🟢 Charging: Voltage below 1.0V → Green LED + LCD message
- 🔵 Stable: Between thresholds → Blue LED + LCD message
- Continuous monitoring with automatic transistor-based discharge

⚡ How Capacitor Charging & Discharging Works
- A capacitor stores energy in the form of an electric field when connected to a power source.
- During charging: Voltage across the capacitor gradually rises as it fills with charge, following an exponential curve. In this project, the LCD shows “Charging” while the LED glows green.
- During discharging: The stored energy is released back into the circuit, causing the voltage to drop exponentially. Here, the transistor helps discharge, the LCD shows “Discharging,” and the LED glows red.
- Stable state: When voltage sits between thresholds, the system marks it as stable, shown on LCD and with a blue LED.

💡 Technical Highlights
- Real-time voltage sensing via analog input
- LCD feedback with two-decimal voltage precision
- RGB LED as state indicator (Charging / Discharging / Stable)
- Transistor control for capacitor discharge
- Practical demonstration of RC circuit behavior

📌 What You’ll Learn
- Hands-on understanding of capacitor charging/discharging
- Using analog inputs for real-time monitoring
- LCD interfacing for live voltage updates
- RGB LED status indication using PWM
- Beginner-friendly embedded system design

🧠 What’s Next
- Add SD card logging for capacitor voltage history
- Adjustable voltage thresholds for flexible experiments
- Monitor multiple capacitors simultaneously
- Buzzer alerts for overvoltage/undervoltage

💾 Code Access
Find the complete code and project updates here:
🔗 https://github.com/ineshcandade

🔗 Connect with Me
🐙 GitHub: https://github.com/ineshcandade
🔗 LinkedIn: https://www.linkedin.com/in/inesh-candade/
🌐 Portfolio: https://ineshcandade.github.io/
📧 Email: candadelabworks@gmail.com

#Arduino #CAPVIEW #ElectronicsLab #IoTProjects #CandadeLabWorks #EmbeddedSystems #RCCircuits #MonitoringSystem

Видео CAP-VIEW | Live Capacitor Monitoring with LCD & RGB Feedback канала Candade LabWorks