Hydrogen Electrolyser Flow Monitor Kit with Arduino Uno + Sensor
Build a Hydrogen Electrolyser Flow Monitor with Arduino Uno – Current, Flow, and Safety Automation
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn your hydrogen electrolyser into a monitored, safe system. This kit teaches you to measure electrolysis current, estimate hydrogen flow rate, and automatically shut off power when current exceeds a safe threshold – perfect for science fair projects, renewable energy demonstrations, and STEM competitions.
What You'll Build
A compact monitoring dashboard that displays real-time current (A), estimated hydrogen flow rate (mL/min), and timestamps on an OLED screen. It logs data to a microSD card with an RTC for traceability, and uses a relay to cut power when the current exceeds your programmed limit – preventing overheating or overload in your electrolysis setup.
What You'll Learn
- Measure DC current up to 20A with the ACS712 hall-effect sensor and convert analog readings to engineering units
- Calculate approximate hydrogen gas flow from a YF-S201 pulse signal using Faraday's laws of electrolysis
- Program an Arduino to trigger a 5V relay for safety shutoff when current crosses a set threshold
- Log time-stamped sensor data to a microSD card using the DS3231 real-time clock for later analysis
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| ACS712 20A | 1 |
| YF-S201 Flow Sensor | 1 |
| 5V Relay Module | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| 12V 5A PSU | 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 kit is ideal for CBSE Class 11-12 physics and chemistry students building hydrogen energy projects, B.Tech ECE/EEE undergraduates working on power monitoring systems, Smart India Hackathon teams focusing on green hydrogen solutions, and ATL Tinkering Lab instructors who need ready-to-use, curriculum-aligned kits. It also fits M.Tech research setups exploring renewable hydrogen monitoring.
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 to access the AI companion; it understands this exact kit and can walk you through every connection and code. WhatsApp support is also available for quick troubleshooting.
Do I need to build the hydrogen electrolyser separately?
Yes, this kit monitors and protects any electrolyser you build or source; it does not include the electrolysis cell or chemicals. You can integrate it with a simple DIY electrolyser.
How does the flow sensor estimate hydrogen rate?
The YF-S201 outputs pulses proportional to water flow. The Arduino converts this to a volume rate and then applies electrochemical constants to estimate hydrogen production, with code and calibration guidance provided.
Can I use this kit for other current‑sensing projects?
Absolutely. The ACS712 and relay module can monitor any DC load up to 20A; simply reprogram the thresholds to transform it into a general energy monitor or protection system.
ACS712 measures electrolysis current. Flow sensor estimates hydrogen rate. Safety shutoff relay on excess current.
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