Because I have several old-fashioned card readers on hand , the size and appearance design of the PCB are drawn based on the shell of the card reader. It is small and does not take up space. There are many mobile phone chargers at home that can be used for direct power supply! ! A pair of wings are installed in the card slot openings on both sides (the wings are the trigger switches for the two buttons). After installation, the overall appearance is improved a lot! ! !
The following is the effect of welding the original parts
The last picture is the finished product
Using Tuya's module is simple and convenient, and it's the best choice for friends who want to play with smart home but don't know how to program! And they often hold events with lots of gifts...and lots of coupons...
Friends who haven’t jumped in yet, hurry up and get on board! ! ! ! This event coincides with Lichuang launching free board games, so happy! ! !
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