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A DIY electronic hourglass kit with two stacked PCBs and a pre-programmed MCU.
This is a more challenging DIY PCB kit as it includes multiple ICs and there is not one but two PCBs to solder; these stack one on top of the other.
If you're fascinated by old style sand hour glasses and want to practice your soldering, this is your perfect kit.
Comes with either red or blue LEDs.
See this guide for kit assembly instructions - *** assembly instructions coming soon ***.
Package Contents