Photobiomodulation Therapy Controller Kit with ESP32 + LED
ESP32 Photobiomodulation Therapy Controller Kit with 850nm and 630nm LED Arrays
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Take control of light-based therapy by constructing a fully programmable controller that drives high‑power 850nm (near‑infrared) and 630nm (red) LED arrays at precisely pulsed frequencies. Whether you aim to explore pain relief, muscle recovery, or skin rejuvenation, this kit puts dose‑tracked photobiomodulation at your fingertips—far beyond what a consumer product can offer.
What You'll Build
A compact, enclosed photobiomodulation therapy (PBMT) controller. You’ll assemble the ESP32 brain that generates PWM pulses, MOSFET drivers that switch the LED arrays, an OLED status screen, a real‑time clock for session logging, and a microSD slot to store every dose detail. The result is a reproducible, data‑aware system ready for personal or research use.
What You'll Learn
- Programming ESP32 to generate PWM waveforms for precise therapeutic pulsing
- Driving high‑current LEDs with logic‑level MOSFETs and gate resistors
- Integrating a DS3231 RTC for accurate session time stamping
- Designing buck converter power supplies from 12V to 5V/3.3V rails
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| IRF540N MOSFET | 3 |
| 850nm LED High Power | 4 |
| 630nm LED High Power | 4 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| LM2596 Buck Converter | 1 |
| 100Ω Gate Resistors | 5 |
| 10kΩ Resistors | 5 |
| 1N4007 Diode | 5 |
| PCB Prototype Board | 2 |
| 12V 3A PSU | 1 |
| Enclosure Box | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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
This advanced build speaks directly to biomedical engineering students (B.Tech ECE/EEE) developing health‑tech prototypes, physiotherapy device startups iterating affordable light therapy tools, and researchers investigating PBMT for chronic pain or wound healing. It fits right into institutional labs at NITs, IITs, VIT, and BITS, as well as India‑focused challenges like the Smart India Hackathon.
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 box to access the AI companion. It knows every component and step, and if you need a human touch, our WhatsApp support line will respond within a few hours.
Is this kit medically certified?
No. This is an educational and experimental kit. It is not a certified medical device. Use it for personal research, prototyping, and learning — not for diagnosing or treating any condition without proper medical oversight.
Can I program different therapy protocols?
Absolutely. The ESP32 firmware is open for modification. The AI companion includes starter code for 10 Hz and 40 Hz protocols, and you can create any PWM pattern to suit your research.
What safety precautions should I take?
Always wear eye protection when testing high-power LEDs. The enclosure helps contain light, but never look directly into the array. Keep the device away from water, and do not use on broken skin. Follow the safety guide included in the companion instructions.
850nm and 630nm LED arrays pulsed at therapeutic frequencies for PBMT session with dose tracking.
What's in this kit
- ESP32 Dev Board
- IRF540N MOSFET x3
- 850nm LED High Power x4
- 630nm LED High Power x4
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- LM2596 Buck Converter
- 100Ω Gate Resistors x5
- 10kΩ Resistors x5
- 1N4007 Diode x5
- PCB Prototype Board x2
- 12V 3A PSU
- Enclosure Box
- 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