Some people might find that their Bluetooth module’s quality can be very bad, even they just received the modules from the seller. Why would this situation happen? Sometimes it’s the static electricity to blame. What is Static Electricity? First of all, a static charge is static electricity. And the phenomenon that electric transfers between objects

With the development of LED lighting technology, mid-range or high- range cars are now decorated with ambient lights, which are usually installed in the central control, door panels, roof, footlights, welcome lights, pedals, etc., and the acrylic rods are illuminated by LED lights to achieve light effect. However, the brightness of the original car's ambient