Build a Precision Electro-Acupuncture TENS Stimulator with Arduino Mega – Programmable Frequency & Amplitude Therapy

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Create a fully controllable electro-acupuncture stimulation device that merges clinical precision with maker ingenuity. This kit guides you through building a research-grade TENS unit capable of generating clean 1–100Hz pulse trains with adjustable 1–10V amplitude, exactly the parameters used in modern electrotherapy. You’ll output those signals through standard needle electrodes while the onboard RTC timestamps every session and logs data to a microSD card—ideal for student projects, biohacking explorations, or personal wellness tracking.

What You'll Build

You’ll assemble a complete Arduino Mega-powered pulse generator housed in a custom enclosure, featuring a crisp 0.96-inch OLED display for real-time parameter monitoring. Dual rotary encoders let you instantly dial in frequency and voltage mid-treatment, while the DS3231 real-time clock provides accurate session timing. The microSD module records every stimulus profile, making the device suitable for documenting therapy experiments, hackathon demos, or final-year biomedical projects.

What You'll Learn

• Generating precise sine/triangle waveforms using the AD9833 DDS IC and controlling it via SPI from Arduino
• Amplifying low-voltage signals to the required 1–10V range with LM358 op-amp circuits while maintaining waveform fidelity
• Implementing a rotary encoder-based user interface with interrupt-driven code for lag-free adjustment
• Logging session data (frequency, voltage, duration, timestamp) to a microSD card using the standard FAT32 library

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced kit is built for B.Tech ECE/EEE students developing biomedical instrumentation projects, final-year researchers at IITs, NITs, VIT, and BITS Pilani, and teams competing in Smart India Hackathon health-tech tracks. It also serves ATL Tinkering Lab mentors who need a robust demonstration of signal generation and data logging. Please note: the device is an educational project for learning electronics and signal processing; it is not a medically certified therapeutic appliance.

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.

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.