Electrochemical Impedance Spectroscopy Kit with Arduino Uno
Electrochemical Impedance Spectroscopy Kit with Arduino Uno
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a portable impedance analyzer capable of characterizing battery electrodes, corrosion processes, or bio-impedance samples. The Arduino Uno controls an AD9833 frequency synthesizer to sweep AC excitation, while the ADS1115 captures amplitude with 16-bit precision. Ideal for final-year engineering projects and research prototyping.
What You'll Build
You'll assemble a functional electrochemical impedance spectroscopy system with a 1.8-inch TFT display for real-time Bode plots, microSD logging for offline analysis, and battery-powered portability for field measurements. The finished unit directly applies AC signals to electrodes and calculates impedance magnitude at each frequency step.
What You'll Learn
- Generate precision AC signals with the AD9833 direct digital synthesizer
- Acquire 16-bit ADC measurements from the ADS1115 over I2C
- Condition electrode signals using LM358 operational amplifier stages
- Log experimental data to microSD and display real-time Bode plots on TFT
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| AD9833 Signal Gen | x1 |
| ADS1115 ADC | x1 |
| LM358 Op-Amp | x2 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 1.8in TFT ST7735 | x1 |
| 100kΩ Resistors | x5 |
| 10kΩ Resistors | x10 |
| 100nF Caps | x15 |
| PCB Prototype Board | x3 |
| 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
Ideal for B.Tech ECE and EEE students building electrochemical sensors for final-year projects, M.Sc Physics or Chemistry researchers needing portable impedance analyzers, and participants of Smart India Hackathon hardware challenges. The advanced circuitry and instrumentation concepts align with courses at IIT, NIT, VIT, and BITS Pilani. ATL Tinkering Lab mentors can use it for advanced lab sessions with 18+ students.
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?
Scan the QR code on the kit box to open the AI companion, which provides step-by-step troubleshooting for this specific impedance spectroscopy build. You can also send a WhatsApp message for direct engineer support.
What kind of electrochemical samples can I test with this kit?
This kit measures two-electrode cell impedance. With appropriate electrode setup you can test batteries, supercapacitors, or corrosion coupons in liquid electrolytes. For three-electrode cells you may need an external bias circuit for the reference electrode.
Is a separate potentiostat required to run EIS?
No, the AD9833 generates the AC excitation directly and the ADS1115 measures the response, so the kit itself operates as a stand-alone impedance analyzer without needing a commercial potentiostat.
Can I modify the frequency range?
The default firmware sweeps from 1 Hz to 10 kHz, but the AD9833 can generate up to 12.5 MHz. You can adjust the Arduino code to extend the range within the analog bandwidth of the LM358 stage.
AD9833 sweeps AC frequency into electrode. ADS1115 measures impedance magnitude at each frequency.
What's in this kit
- Arduino Uno R3
- AD9833 Signal Gen
- ADS1115 ADC
- LM358 Op-Amp x2
- DS3231 RTC
- MicroSD Module
- 1.8in TFT ST7735
- 100kΩ Resistors x5
- 10kΩ Resistors x10
- 100nF Caps x15
- PCB Prototype Board x3
- 9V Battery Snap
- Soldering Iron
- Solder Wire
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.
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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