This is a sensor kit 37-in-1 components with more and more functions and experiments.With this toolkit, you can learn many creative projects and create.Start with a complex project that starts with the basics of electronics.Less external components, greater sensitivity, lower power consumption, etc.After your understanding of the color of actual product may vary slightly from the listed images due to different computer screens.Please check before buying if the size of your object.Parameters:1. PCB size: 4.0mm*8.0mm2. Power: 15W3. Power input: DC 15-24V. The current is 2A. DC5.5 interface / pin4. Audio input: 3.5 socket, can be connected to mobile phone, MP3, computer audioPrinciple introduction:Tesla coil is a transformer that operates on resonance principle. It was invented by Nicola Tesla, a Serbia American scientist in 1891. It is mainly used to produce ultra high voltage, but low current, high-frequency AC power. The Tesla coil is composed of two groups of resonant circuits (sometimes three groups) coupled. The Tesla coil is difficult to define, and Nicola Tesla has tried a large number of configurations of various coils. Tesla uses these coils to carry out innovative experiments, such as electrical lighting, fluorescence spectrum, X ray, high frequency alternating current phenomenon, electrotherapy, and radio energy transmission, transmitting and receiving radio signals.Tesla function:1. Electric arc function: the traverse of the rear end will produce an arc. The arc can also ignite.2. Septum light function: after the Tesla coil is electric, the fluorescent lamp can be lighted apart.3. Music playback function: a new concept loudspeaker for an electric arc to stimulate air to make air vibration produced by plasma. You can play mobile/computer music, but the sound is small.Installation steps:Tips:1. Install small components at fir
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