LED Electronic Hourglass DIY Soldering Kit – 57 LEDs, 5V
LED Electronic Hourglass DIY Soldering Kit – 57 LEDs, 5V
LED Electronic Hourglass DIY Soldering Kit
Build 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.
How It Works
The 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.
Key Features
- 57 LEDs — 3mm white and blue LEDs form a beautiful hourglass pattern
- Pre-programmed microcontroller (STC15W202S) — no coding required
- Touch-controlled speed — adjust hourglass animation speed with the S2 touch switch
- Dual power input — USB or DC jack (5V), 3mm DC socket included by default
- ISP download interface — for advanced users who want to modify the program
- Great skills trainer — ideal for learning soldering, component identification, and PCB assembly
- Compact & display-worthy — makes a great desk ornament once assembled
Assembly Tips for Best Results
- Use high-quality soldering tin — joints should be bright and clean with no skips.
- Install components from lowest to tallest height on the board.
- LED long pin = positive (+); match it to the marked position on the PCB.
- Fit the IC into its socket first, then insert the IC — ensure the notch aligns with the board marking.
- Double-check all component placements before connecting to a 5V power supply.
What's in the Box
The 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.
Made in Mainland China.
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Frequently Asked Questions
Q: Do I need to program the microcontroller before assembling the LED hourglass kit?
A: 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.
Q: What skill level is this DIY LED hourglass soldering kit suitable for?
A: 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.
Q: What power supply does the LED electronic hourglass kit use?
A: 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.