Build a Universal Testing Machine with Arduino: Load Cell, HX711, Calibration and Stress-Strain Testing
A universal testing machine (UTM) applies a controlled mechanical load…
Tech Guides and Videos
Read MoreBuild a Universal Testing Machine with Arduino: Load Cell, HX711, Calibration and Stress-Strain Testing
Rechargeable Fan Battery Problem: How to Diagnose No Charging, Weak Backup and Battery Failure
A rechargeable fan that runs normally from mains power but…
Dell LED Monitor Power Section Repair: How to Diagnose No Power and SMPS Faults
A Dell LED monitor that appears completely dead does not…
Horn Speaker Repair: How to Diagnose No Sound, Distortion and Diaphragm Faults
A horn speaker used in a PA, mosque, school, factory,…
LED Tube Light Repair: Diagnose Dead, Flickering and Dim LED Tubes
An LED tube can fail in several different ways: it…
Clamp Meter Repair: How to Diagnose No Power, Wrong Readings and Common Faults
A clamp meter, also called a clamp-on meter or tong…
Optical Fiber Jointing: Fusion Splicing Step-by-Step Guide
Optical fiber jointing, also called fiber splicing (جوڑ), is the…
Voltage Protector Working Principle: Over/Under Voltage Protection Explained
A voltage protector is an automatic monitoring device placed between…
HP Laptop Charger Repair: Diagnose No Output, Cable & Smart Pin Faults
An HP laptop “charger” is more accurately an AC power…
How to Build a Bluetooth Amplifier with PAM8610: Wiring, Power & Noise Fixes
A PAM8610 board is an easy way to turn a…