Wireless ESP32 Smart LAN Tester

🌐 WIRELESS ESP32 SMART LAN TESTER 🌐

Are you tired of running halfway through the house for fixed network cables or pulling an endlessly long loopback cable? This enclosure set turns two ESP32-C3 Super Mini into a smart, two-part, and completely wireless network tester!

Instead of a simple analog tester, these two modules communicate at lightning speed directly with each other via ESP-NOW — completely independent of a Wi-Fi router. You simply plug the remote module into the basement and read on the master module with its large 1.3" OLED display in the attic whether the line is error-free.

The system not only detects cable breaks, but also shows you exactly on the display which wires have been swapped or have a short circuit. Even the shield is actively tested!

⚠️ IMPORTANT: COMPLETE DIY MANUAL INCLUDED! ⚠️ Please download the attached PDF manual from the files section! There you will find the complete DIY guide, the wiring diagram, the C++ code, and the exact Bill of Materials (BOM) to build it yourself.

✨ KEY FEATURES ✨

🛠️ INTEGRATED HARDWARE 

Prepared cutouts for RJ45 breakout boards, the large 1.3" OLED display, TP4056 charging boards, tiny slide switches, and 300mAh LiPo batteries.

📡 WIRELESS DIAGNOSIS 

Transmitter and receiver communicate through walls and ceilings directly via ESP-NOW.

🔍 SMART FAULT ANALYSIS 

Shows exactly swapped wires, short circuits, and breaks on the display.

📄 AUTO-PAGINATION & CABLE DETECTION 

The smart software immediately recognizes if no cable is plugged in (or the ground is missing). If there are many errors at once, the display automatically flips between multiple pages!

🛡️ ACTIVE SHIELD TESTING 

The shield of the network cable is tested as a fully-fledged 9th wire.

🔋 COMPACT & PORTABLE 

Integrated batteries with USB-C charging make the tool extremely handy for any workshop or smart home expansion.