GLEDOPTO LED controllers are delivered without power supply unit. Which power supply is cheap and compatible and where can I get it?
You got yourself a LED light box with letters in cinema style. Unfortunately, the batteries are always empty, but a power supply is not included in the Lightbox. Which power supply is cheap and compatible and where can I get it?
The Raspberry Pi's SD card is vulnerable to file system failure in the event of a power failure. A small UPS called StromPi solves the problem of defective file systems.