Bode Plot Frequency Analyser Kit with Arduino Mega
Master Frequency Response Analysis: Bode Plot Analyser Kit with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform a collection of precision components into a fully functional Bode plot analyser that sweeps sine waves across a configurable frequency range, measures circuit gain with 16-bit resolution, and renders magnitude plots directly on a vibrant TFT screen. This instrument-grade build equips you to characterize analog filters, amplifier stages, and passive networks exactly the way a professional would—but entirely DIY.
What You'll Build
You’ll assemble a self-contained frequency analyser powered by an Arduino Mega. The AD9833 DDS module generates a programmable sine sweep, which is buffered and amplified through dual LM358 op-amp stages. The ADS1115 16-bit ADC captures the output amplitude at each frequency step, and the ILI9341 TFT display renders a real-time Bode magnitude curve with labelled axes, all housed on a robust prototyping board and powered by a 9V battery.
What You'll Learn
- Programming direct digital synthesis (DDS) with the AD9833 to create clean, linear frequency sweeps from sub‑Hz to MHz.
- Designing analog gain stages with LM358 op‑amps to condition signals for precise ADC acquisition.
- Acquiring high‑resolution voltage data over I²C using the ADS1115 and converting raw readings to dB gain.
- Rendering interactive, real‑time Bode magnitude plots on an ILI9341 TFT with custom scaling, grid lines, and dynamic refresh.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | x1 |
| AD9833 Signal Gen | x1 |
| ADS1115 ADC | x1 |
| LM358 Op-Amp | x2 |
| 2.4in TFT ILI9341 | x1 |
| 10kΩ Resistors | x5 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| 9V Battery Snap | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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
This advanced build is tailored for B.Tech ECE/EEE undergraduates tackling final‑year instrumentation or signal processing projects, participants in Smart India Hackathon hardware tracks, and dedicated hobbyists from IIT/NIT/VIT/BITS engineering ecosystems. CBSE Class 12 students with strong Arduino experience can also take it up under mentor guidance, gaining an early edge in frequency‑domain analysis.
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?
Open the AI companion link on the box for instant diagnostics, or message us on WhatsApp—our support team knows this exact kit inside out and replies within hours.
Can this kit measure phase to create a full Bode plot?
Out of the box, it focuses on magnitude; phase measurement would require additional zero‑crossing detection circuitry. Our advanced community forum covers that upgrade if you want to extend the project later.
Is prior soldering experience required?
Yes, this is an advanced kit where you’ll solder components onto prototype boards. The included iron and wire make the process self‑contained, but comfortable soldering skill is recommended.
Can I power it via USB instead of the 9V battery?
Absolutely—the Arduino Mega runs perfectly on USB power for bench testing. The 9V battery snap lets you go portable once your analyser is calibrated and ready for standalone measurements.
AD9833 sweeps signal into amplifier. ADS1115 measures gain at each frequency. TFT plots Bode magnitude plot.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Other projects you can build
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