Hourglass PCB Board Hourglass Module Funny LED DC 5V Electronic

Material: Electronic components
Type: Electronic Hourglass Kit Fun Electronic Production Skills Test Teaching SCM LED Lights DIY Parts
Effect:
The electronic hourglass uses a light-emitting diode controlled by an electronic circuit to represent sand particles and simulate the hourglass motion process. The electronic hourglass will resemble a real hourglass, the upper sand
Pole tube) One grain and one grain fall downwards, and the lower ones are heaped up one by one. After the leak is complete, press the restart switch once again, and it will restart one grain and one grain downward.
Power supply: 5V
Note: This product must be assembled by itself
Product Size: Board Size: 84*40mm

Notes:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight deviation for the measurement data.
3.Thanks for your understanding