Arduino Nano Solar MPPT Charger Kit - Learn P&O MPPT on 50x50mm PCB
Arduino Nano Solar MPPT Charger Kit - Master the P&O Algorithm & Build a 50x50mm Solar Charger
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Implement the Perturb & Observe (P&O) maximum power point tracking algorithm on a compact 50x50mm PCB. This kit transforms a standard 6V solar panel into an efficient lithium battery charger, squeezing peak watts into a single 18650 cell while displaying live voltage, current, and power on a crisp OLED screen. Ideal for engineering students and hobbyists eager to explore power electronics, I2C sensor integration, and real-world embedded systems.
What You'll Build
A fully functional solar charger with real-time MPPT. By assembling this kit, you create a portable charging solution that demonstrates how smart algorithms can boost energy harvest from small solar panels. The 0.96-inch OLED shows input/output power, MPPT status, and battery charge level, while the two INA219 sensors provide high-side current sensing for both the solar input and battery output.
What You'll Learn
- Implement the P&O MPPT algorithm in Arduino C/C++ to dynamically track the solar panel's maximum power point.
- Interface two INA219 I2C current sensors via a TCA9548A multiplexer to read voltage and current from multiple circuits.
- Solder SMD passive components (100nF capacitors) and through-hole MOSFETs on a custom PCB layout.
- Calibrate and display real-time power metrics on an OLED using the Adafruit SSD1306 library.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| INA219 | 2 |
| IRF540N MOSFET | 1 |
| 1N5819 Diode | 3 |
| TCA9548A I2C Mux | 1 |
| Solar Panel 6V 2W | 1 |
| 18650 Cell | 1 |
| 0.96in OLED | 1 |
| 100nF Caps | 10 |
| PCB Prototype Board | 3 |
| 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 built for CBSE Class 12 students tackling renewable energy projects, B.Tech ECE/EEE first-years learning embedded power systems, and ATL Lab coordinators running workshops on MPPT algorithms. If you're preparing for Smart India Hackathon's energy track or just want to sharpen your SMD soldering skills, this hands-on board takes you from theory to a working charger in one session.
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 your AI build companion, which has step-by-step instructions for soldering, wiring, and code upload. You can also send photos via WhatsApp for human guidance.
Do I need any programming experience to complete this kit?
The provided Arduino sketch is pre-written and commented; you'll upload it via USB. Familiarity with the Arduino IDE is helpful but not required - the AI companion walks you through setup.
Is the 18650 battery included, and is it safe to use?
Yes, one unprotected 18650 cell is included. The kit's circuit includes over-discharge protection via the MOSFET and diode, but always supervise a charging battery in use.
Can I modify the MPPT algorithm for different solar panels?
Absolutely. The open-source code makes it easy to adjust P&O step size or try incremental conductance. Both INA219 sensors give you live data to visualize algorithm performance.
Nano implements P&O MPPT on a 50x50mm PCB. Charges 18650 from solar at peak efficiency. All SMD passives.
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