Network Cable Continuity Tester Kit with Arduino Nano + LED
Build a Reliable Network Cable Continuity Tester with Arduino Nano & LED Matrix
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Ever crimped an Ethernet cable and wondered if all eight conductors made proper contact? This kit turns two Arduino Nanos into a transmitter‑receiver pair that walks a test pattern down the line. An LED matrix at the receiver end lights up only for those pairs that pass the continuity check—no more guesswork when a network link refuses to come up.
What You'll Build
A portable network cable continuity tester with a breadboard‑friendly design. One Nano acts as the transmitter, generating a rotating test sequence across its digital pins. The receiver Nano captures the incoming signals and drives a 74HC595 shift register to control eight LEDs, each representing a wire pair. The result is a visual map of your cable's wiring health in seconds.
What You'll Learn
- Expand digital outputs using a 74HC595 shift register to drive multiple LEDs
- Establish simple serial communication between two microcontrollers over discrete wires
- Wire and handle RJ45 plugs and understand Ethernet T568A/B pinouts
- Debug real‑time LED patterns to isolate opens, shorts, and miswired pairs
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 2 |
| 5mm LED Assorted | 8 |
| 74HC595 Shift Register | 1 |
| 10kΩ Resistors | 5 |
| 220Ω Resistors | 10 |
| RJ45 Plugs | 4 |
| 400-pt Breadboard | 2 |
| M-M Wires | 20 |
| 9V Battery Snap | 2 |
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
CBSE Class 11‑12 students tackling networking concepts in Computer Science or Physics practicals gain hands‑on exposure to cable testing. First‑year B.Tech ECE/EEE students find this an ideal digital electronics lab project, covering shift registers and serial data transfer. Hobbyists assembling a home‑lab toolkit, as well as ATL Tinkering Labs exploring communication protocols, will appreciate the practical, no‑solder 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?
Scan the QR code to access the AI companion that can troubleshoot your exact circuit step by step; you can also message our team on WhatsApp for human help.
Do I need to solder anything?
No, all connections are made on the breadboard using the included jumper wires. The RJ45 plugs simply insert into the breadboard for quick testing.
Can I test cables longer than standard patch cords?
Yes, the continuity tester works reliably on lengths up to about 30 metres. It checks electrical continuity, not signal quality, so it's perfect for long runs and custom cables.
Are the Arduino Nanos pre-programmed?
We pre-load the transmitter and receiver sketches so you can power up and test immediately. Full source code is included if you want to modify the blink patterns or add features.
Transmitter sends sequence to receiver end. LED matrix at receiver shows which pairs pass continuity test.
What's in this kit
- Arduino Nano x2
- 5mm LED Assorted x8
- 74HC595 Shift Register
- 10kΩ Resistors x5
- 220Ω Resistors x10
- RJ45 Plugs x4
- 400-pt Breadboard x2
- M-M Wires x20
- 9V Battery Snap x2
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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