[Training Camp] Lichuang EDA—Suspended Cloud Night Light-680014A

     About 1 million plastic bottles are sold globally every minute, and this number will jump by 20% before 2021. By then, more than 500 billion plastic bottles will be used around the world every year. Humanity's recycling system will not be able to handle this huge amount, which will create an environmental crisis as serious as climate change.

I encourage everyone to protect the environment and recycle waste. Then I made a night light using plastic bottles and silk floss (clothing stuffing). I believe that among the 1,000 people participating in this competition, I am the only one whose work is in the garbage heap. The principle of this entry is very Simple, you only need to use the [WB3S module (Tuya Smart)] and basic peripheral circuits. The power supply port is reissued. An additional explanation is that this place requires its own external power supply (18650, lithium battery, etc. The power supply voltage is not allowed Less than 3.6V (not more than 6V), use high-power MOS tube, suitable for long-term working night light ~ [Link to Tuya IoT development platform] https://auth.tuya.com/?from=https://www. tuya.com/cn/&_source=cbc30f99f7a6c4aebca6755c2fab437f (contains detailed development documents)