Gikfun Electronic Hourglass led DIY Kits Soldering Practice Board Blue

This is a beautiful electronic hourglass that is fun to build and nice to look at when finished, it is not only a PCB board for practicing welding skills, but also a decorative gift for you. High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully. Comes with Englis

• This is a beautiful electronic hourglass that is fun to build and nice to look at when finished, it is not only a PCB board for practicing welding skills, but also a decorative gift for you.
• High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully.
• Comes with English user manual and online PDF file, which will guide you how to finish step by step, perfect for school basic electronics experiment projects.
• The suite adopts double layer PCB, and the circuit consists of 30 pieces white LED blue ray.
• Under the control of MCU program, it displays analog hourglass image.
• Power Supply Voltage：3.3-5V

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