5V-os elektronikus homokóra barkácskészlet Vicces elektromos gyártási készletek precíz LED lámpákkal, kétrétegű PCB kártya 84 * 40 mm
5V Electronic Hourglass DIY Kit Funny Electric Production Kits Precise With LED Lamps Double Layer PCB Board 84*40mm
 The suite adopts 1.6mm double layer PCB, and the circuit consists of 57 pieces warm white LED. Under the control of MCU program, it displays analog hourglass image. The micro switch can adjust the speed of hourglass, the bright LED quantity at the same time is 28, and it can be used as decoration of small night light. 0.5W power consumption.
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