{"product_id":"b0bnpwdbbj","title":"Soldering Practice Kit - DIY Electronic Doorbell Soldering Kit (Suitable for Home Installation + STEM Education), An Entry - level Electronic Production Kit for Beginners","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand : Yidab\u003c\/li\u003e\n\u003cli\u003eItem Weight : 0.05 Kilograms\u003c\/li\u003e\n\u003cli\u003eDisplay Type : digital\u003c\/li\u003e\n\u003cli\u003eIncluded Components : Soldering Practice Kit 5 DIY Electronics Projects Soldering Kit\u003c\/li\u003e\n\u003cli\u003eUPC : 588360681966\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction as a Real Doorbell, Ready to Use Right Away：Once soldering is completed, it can serve as a practical home doorbell. It supports tone adjustment and is suitable for various scenarios such as courtyards and bedrooms (a speaker needs to be self - provided).\u003c\/li\u003e\n\u003cli\u003eA Classic Electronic Teaching Project：Learn core electronic principles such as audio oscillation circuits (NJ5655 chip), capacitor filtering (100μF\/103), and diode rectification (IN4148). It is ideal for STEM classrooms and interest - based practical activities.\u003c\/li\u003e\n\u003cli\u003eIndustrial - grade Components for Professional Learning：It includes an NJ5655 audio generator, IN4148 switching diodes, precision resistors, and capacitors, restoring real - world circuit designs and moving beyond toy - level experiments.\u003c\/li\u003e\n\u003cli\u003eBeginner - friendly Design：The PCB board clearly marks the VCC\/GND polarities. The pad sizes are optimized, and it comes with a modular circuit layout, enabling even beginners with no prior experience to easily complete the assembly.\u003c\/li\u003e\n\u003cli\u003eDual Value: Learning and Practical Use in One：It serves both as an electronic teaching model to demonstrate the working principles of circuits and can be upgraded into a home security device. It supports the expansion and connection of wireless modules (additional accessories required).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yidab","offers":[{"title":"Default Title","offer_id":46676158972067,"sku":"B0BNPWDBBJ","price":15.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/9856\/1699\/files\/71Y3lLLi9pL._AC_SL1500.jpg?v=1766459655","url":"https:\/\/std1kf-6s.myshopify.com\/products\/b0bnpwdbbj","provider":"ElecTrend","version":"1.0","type":"link"}