Simple and Brilliant way to measure RPM
Needed items: Device to be tested, tape, laptop/pc+mic, audacity, stock calculator app. Step 1: Add tape at the rotating end of the device to act as a flap. Step 2: …
Tiny UPS for Routers
Keeping the net connection running and stable is becoming more vital. I used to count on standard UPS units but the need to replace their lead-acid batteries get troublesome. During …