{"product_id":"led-electronic-hourglass-diy-soldering-kit-5v","title":"LED Electronic Hourglass DIY Soldering Kit – 57 LEDs, 5V","description":"\n\u003ch2\u003eLED Electronic Hourglass DIY Soldering Kit\u003c\/h2\u003e\n\u003cp\u003eBuild your own mesmerizing electronic hourglass with this hands-on DIY soldering kit! Using 57 white and blue 3mm LEDs controlled by a microcontroller, this kit simulates the iconic flowing sand of a real hourglass — lit LEDs cascade downward one by one, pile up at the bottom, then restart automatically. It's a fantastic project for electronics students, hobbyists, and makers looking to sharpen their soldering and circuit assembly skills.\u003c\/p\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eThe circuit is powered by an STC15W202S microcontroller that comes pre-programmed — so once you've assembled and soldered all the components correctly, it works right out of the box! A touch switch (S2) lets you control the speed of the hourglass animation, and the kit supports both USB and DC power input (5V). The power switch (S1) is also included on the board for easy on\/off control.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e57 LEDs\u003c\/strong\u003e — 3mm white and blue LEDs form a beautiful hourglass pattern\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-programmed microcontroller\u003c\/strong\u003e (STC15W202S) — no coding required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTouch-controlled speed\u003c\/strong\u003e — adjust hourglass animation speed with the S2 touch switch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual power input\u003c\/strong\u003e — USB or DC jack (5V), 3mm DC socket included by default\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISP download interface\u003c\/strong\u003e — for advanced users who want to modify the program\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGreat skills trainer\u003c\/strong\u003e — ideal for learning soldering, component identification, and PCB assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; display-worthy\u003c\/strong\u003e — makes a great desk ornament once assembled\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAssembly Tips for Best Results\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eUse high-quality soldering tin — joints should be bright and clean with no skips.\u003c\/li\u003e\n  \u003cli\u003eInstall components from lowest to tallest height on the board.\u003c\/li\u003e\n  \u003cli\u003eLED long pin = positive (+); match it to the marked position on the PCB.\u003c\/li\u003e\n  \u003cli\u003eFit the IC into its socket first, then insert the IC — ensure the notch aligns with the board marking.\u003c\/li\u003e\n  \u003cli\u003eDouble-check all component placements before connecting to a 5V power supply.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cp\u003eThe delivery list includes all electronic components needed to assemble the hourglass kit (PCB, LEDs, microcontroller, resistors, sockets, and power connectors). Please refer to the product images above for the complete parts list.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou Might Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/18-pc-basswood-carving-blocks-whittling-wood-kit\"\u003e18 Pc Basswood Carving Blocks – Whittling Wood Kit for Carvers\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/graded-trading-card-holder-snap-closure-plastic-slab-case\"\u003eGraded Trading Card Holder Snap Closure Plastic Slab Case\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Do I need to program the microcontroller before assembling the LED hourglass kit?\u003c\/h4\u003e\n\u003cp\u003eA: No programming is required! The STC15W202S microcontroller comes pre-programmed. Once all components are correctly soldered onto the PCB, simply connect it to a 5V USB or DC power source and it will work immediately.\u003c\/p\u003e\n\u003ch4\u003eQ: What skill level is this DIY LED hourglass soldering kit suitable for?\u003c\/h4\u003e\n\u003cp\u003eA: This kit is designed for beginner to intermediate electronics enthusiasts. It's an excellent hands-on project for students learning soldering and PCB assembly, as well as experienced hobbyists who enjoy building LED display projects.\u003c\/p\u003e\n\u003ch4\u003eQ: What power supply does the LED electronic hourglass kit use?\u003c\/h4\u003e\n\u003cp\u003eA: The kit operates on 5V and supports both USB and DC power input. A 3mm DC socket is configured by default. Any standard 5V USB phone charger or power bank can power it once assembled.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Do I need to program the microcontroller before assembling the LED hourglass kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No programming is required! The STC15W202S microcontroller comes pre-programmed. Once all components are correctly soldered onto the PCB, simply connect it to a 5V USB or DC power source and it will work immediately.\"}}, {\"@type\": \"Question\", \"name\": \"What skill level is this DIY LED hourglass soldering kit suitable for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This kit is designed for beginner to intermediate electronics enthusiasts. 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