Lightning Rod Strike Counter Variant 7
Build a Direct Lightning Strike Counter with AS3935, Arduino, and RTC-SD Logging
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine deploying a rugged, always-on instrument at the top of a lightning rod that counts every direct strike and stores the exact moment it happened. This kit does exactly that, using the AS3935 lightning sensor to detect current pulses induced in the rod, then timestamps each event with the DS3231 real-time clock and writes the cumulative count to a microSD card. Designed for advanced makers and engineering students, it pushes your embedded systems skills into real-world environmental data acquisition.
What You'll Build
You will assemble a field-ready lightning strike counter that mounts directly on a standard lightning rod down-conductor. The AS3935 chip filters out man-made noise and distant storms to capture only direct strike events. Each strike increments a counter, displayed on the 0.96-inch OLED, and the new total with a timestamp is appended to a log file on the SD card. The entire unit fits inside a waterproof enclosure and runs from a 9V battery, making it autonomous for days of monitoring.
What You'll Learn
- Interfacing I2C sensors — AS3935, DS3231 RTC, and OLED — on a shared bus with correct pull-up resistor configuration
- Writing robust SD card data logging firmware that creates and appends to CSV files while handling power interrupts
- Designing a battery-powered embedded system with sleep modes and low-power considerations for outdoor deployment
- Integrating electromagnetic event detection with timestamp recording to build a complete environmental monitoring instrument
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| AS3935 Lightning Sensor | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| Waterproof Enclosure | 1 |
| 9V Battery Snap | 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 kit is built for B.Tech ECE and EEE students undertaking weather station or structural protection projects, often seen at Smart India Hackathon finals or capstone design courses at IITs, NITs, and VIT. It also suits environmental researchers who need a reliable, deployable lightning logger. If you have prior Arduino experience and are ready to solder a permanent prototype, this kit bridges the gap between classroom labs and real-world instrumentation.
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 enclosure box to launch the AI companion, which has been fed the full schematic and firmware logic for this kit. It can walk you through debugging I2C addressing, SD card initialization, or AS3935 tuning. You can also message us on WhatsApp for a direct reply within hours.
How accurate is the AS3935 in detecting direct rod strikes?
The AS3935 uses a sensitive RF receiver and lightning algorithm that distinguishes direct current pulses on the rod from distant cloud-to-cloud discharges with a typical detection distance of 40 km for lightning, but for direct strikes, it relies on the proximity of the rod conductor and the very high energy signature. Our placement guide and grounding guidelines ensure reliable counting.
Can I power this from a solar panel instead of a battery?
Yes, you can connect a small 12V solar panel with a charge controller to the Arduino’s Vin pin, but you’ll need to design a power management circuit to avoid over-voltage. The kit includes a 9V battery snap for initial deployment, and the AI companion can suggest solar integration steps if you plan long-term outdoor use.
Will the enclosure protect the electronics from rain?
The supplied waterproof enclosure has an IP65 rating when cables are properly glanded. The kit includes instructions for sealing the sensor cable entry. For added protection, especially during monsoon, you can place the entire assembly inside a larger weather box—the AI companion provides examples from previous builds.
AS3935 lightning sensor counts direct rod strike current pulses. Logs cumulative count with timestamps to SD.
What's in this kit
- Arduino Uno R3
- AS3935 Lightning Sensor
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- 4.7kΩ Resistors x5
- 100nF Caps x10
- PCB Prototype Board x2
- Waterproof Enclosure
- 9V Battery Snap
- 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.
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