There's a project for every room in the house ... However, if you do own a Raspberry Pi, you'll know of the red and green LED lights on the mini-computer's board. But what do these lights mean?

Available on Amazon, the palm-sized wand device harnesses the power of red and infrared light to help speed up healing, pain relief and recovery.

Gone are the days when the red light therapy devices were seen as pricey futuristic treatments — some of the best at-home LED face masks and devices are proven to reduce the appearance of ...