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Product Review
- 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.
- 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 Voltageļ¼3.3-5V
