Oxygen Therapy Flow Controller Variant 35 Kit with ESP32 + Sensor
Precision Oxygen Therapy Flow Controller Kit – ESP32 + Sensors for Home Concentrators
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit lets you build a fully functional oxygen therapy flow controller that replaces expensive commercial flow meters. By reading flow rate from a YF-S201 sensor and using an MPX5010 pressure sensor as an O2 concentration proxy, the ESP32 decides exactly when to open or close the solenoid valve via the relay. It logs every session with a DS3231 real-time clock to a microSD card for patient records, making it ideal for home healthcare prototyping.
What You'll Build
Upon completion, you’ll have a standalone device enclosed in a professional case that sits between your oxygen concentrator and cannula. The 0.96-inch OLED displays real-time flow rate and valve status, while the microSD module records therapy details with a date-time stamp. You can calibrate the system for different flow prescriptions and fine-tune the pressure threshold to detect oxygen concentration changes.
What You'll Learn
- Calibrating a YF-S201 flow sensor and MPX5010 pressure sensor to measure gas flow and detect concentration changes reliably.
- Using an ESP32 to read analog sensor data, control a relay for solenoid valve actuation, and write log entries with a DS3231 real-time clock.
- Designing a power supply with an LM2596 buck converter, filtering with diodes and capacitors, and managing inrush currents for a stable medical-grade circuit.
- Assembling and soldering components on a PCB prototype board and fitting them into a durable enclosure while following tidy wiring practices.
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| YF-S201 Flow Sensor | x1 |
| MPX5010 Pressure Sensor | x1 |
| 5V Relay Module | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 0.96in OLED | x1 |
| LM2596 Buck Converter | x1 |
| 1N4007 Diode | x5 |
| 100nF Capacitor | x10 |
| PCB Prototype Board | x2 |
| Enclosure Box | x1 |
| 12V Adapter | 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 kit is ideal for B.Tech ECE and biomedical engineering students working on final-year projects in remote patient monitoring or Smart India Hackathon healthcare tracks. It also suits engineers prototyping home-care assistive devices, and makers building reliable oxygen therapy tools for family use. If you’re comfortable with soldering and basic Arduino IDE programming, you’ll thrive with this build.
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?
Our AI companion, accessed via QR code, gives step-by-step instructions; you can also message our support team on WhatsApp for real-time assistance.
Can this controller work with any home oxygen concentrator?
The kit interfaces with any concentrator that has a 12V solenoid valve or compatible flow control port. The YF-S201 sensor uses standard 3/8″ tubing, and the MPX5010 measures pressure changes to infer oxygen purity. We include calibration guidelines for common models.
How accurate is the oxygen flow control?
After calibration, the flow rate can be maintained within ±5% of the setpoint. The pressure sensor acts as a reliable proxy for concentration changes; for clinical use, cross-check with a dedicated O2 sensor is recommended.
Is this kit suitable for long-term patient use?
The enclosed system, power filtering, and industrial-grade components are designed for durability, but this is a DIY educational kit and not a certified medical device. Always consult a healthcare professional before deployment.
YF-S201 flow sensor + O2 concentration proxy sensor controls solenoid flow valve for home oxygen concentrator.
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.
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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