SteelSeries Arena 3 review: So close to speaker-perfection
The SteelSeries Arena 3 are designed minimalistically and built well, and they can get very loud. They’re great for ...
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Control Home Appliances with a Mobile Torch: DIY Light-Activated Switch Using LDR
Build a light-activated switch using LDR that lets you control home appliances using your mobile phone's torch.