Grid Power Quality Monitor Kit with Arduino Mega + LED
Build a Grid Power Quality Monitor with Arduino Mega – Detect Harmonics in Real Time
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Plug into the AC mains safely using the ZMPT101B voltage sensor and watch your OLED display show live voltage waveforms and harmonic distortion percentages. This kit turns your Arduino Mega into a portable grid analyzer that identifies 3rd and 5th harmonics—the telltale signs of non-linear loads like LED bulbs, SMPS adapters, and inverter-fed appliances. By sampling 5,000 times a second, you’ll literally see how modern electronics distort the power coming into your home.
What You'll Build
A functional power quality monitor that captures the AC voltage waveform, runs a Fast Fourier Transform (FFT) on the Arduino Mega, and displays the fundamental frequency alongside the 3rd and 5th harmonic amplitudes on a crisp 0.96-inch OLED screen. You’ll be able to compare a clean resistive load against a phone charger or an LED lamp and instantly see which "pollutes" the grid with more harmonics.
What You'll Learn
- Sampling an AC signal at 5kHz using the ZMPT101B voltage transformer module
- Implementing FFT on Arduino Mega to extract frequency-domain components
- Interpreting harmonic distortion and its effect on power systems
- Building a self-contained measurement instrument using a breadboard and battery power
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| ZMPT101B AC Voltage | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Students aged 10–15 in ATL Tinkering Labs or CBSE science clubs who want to see AC power concepts come alive on a screen. B.Tech ECE/EEE undergraduates working on Smart India Hackathon energy monitoring prototypes or power quality projects will appreciate the practical FFT implementation. Even IIT/NIT/VIT/BITS project teams can use this kit as a rapid starting point before building more advanced analyzers.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
The AI companion walks you through every connection and code upload; if you still need help, our WhatsApp support responds within an hour with specific debugging steps for this kit.
Is it safe to connect this kit to the Indian 220V grid?
Yes, the ZMPT101B module is a transformer-isolated sensor rated for up to 250V AC. The entire circuit runs on a 9V battery, so there is no direct electrical contact between the mains and your Arduino.
Can I really see harmonics from a phone charger?
Absolutely. Most SMPS chargers and LED bulbs draw non-sinusoidal current, creating strong 3rd and 5th harmonics. Once built, you can plug in different loads and watch the harmonic bars spike in real time on the OLED.
Do I need prior coding experience?
No. The AI companion provides a ready-to-upload Arduino sketch with clear comments. You’ll learn the FFT algorithm by watching it work, and you can tweak parameters to experiment with different sampling rates.
ZMPT101B samples AC mains at 5kHz. FFT detects 3rd and 5th harmonics from non-linear loads.
What's in this kit
- Arduino Mega 2560
- ZMPT101B AC Voltage
- 0.96in OLED
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items