Monthly Archives: May 2020

  1. Cooling panel summary

    Summer is coming, what did you think of first? Is it the sun, the beach, or the extreme heat? When I first thought of air conditioning, iced watermelon and a glass of iced cola.

    Here, we introduce some cold products to help you spend the summer happily.

    Today's protagonist is a thermoelectric cooler politer, which is a particularly interesting component. When it is powered on, it will heat up on one side and cool on the other side. The water dispenser, small refrigerator, and water cooling system of the computer host that we have seen all need this small device.  Using the thermoelectric cooler peltier of the cooling fins to get a low temperature as low as 0 °C.
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  2. Make an Interactive led stairs

    At the beginning


    There is a staircase in the house. It is very interesting to see many staircase renovation projects in the community. Not very busy recently, so I decided to use some open source hardware modules to transform the stairs at home and add some interactive functions. This project will not be particularly difficult, it takes me about an afternoon. If you also have a staircase in your house that needs to be renovated, I hope this sharing will help you.

    STEP 1 - Preparing work


    First, you need to prepare some materials, which include the following:

    Electronic module

    • A Longan Core board, or other Arduino development board
    • Ul
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