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On the product:  https://youtu.be/1WOKX6ciCZI
The circuit comes with marking the locations of the components on the board and is intended for those with knowledge of reading circuits and soldering

An electronic kit for self-construction of a digital hourglass consisting of LED lights

From this circuit you can build a cool hourglass that consists of LED lights and shows the progress of the clock through the gradual illumination of LED lights – a cool and challenging project from which you can also create a useful and cool product!

This kit is a craft kit for youth and children aged 7 and up and includes delicate work with a soldering iron to build and assemble a complete electronic circuit with components from the world of analog and digital electronics.
The electronics kit for children and youth allows them to build a real hourglass electronic circuit by themselves and provides them with both an experience of experimenting with real electronics as well as fine creation and work that develops focus tolerance and deep concentration.

The kit includes all the electronic components required to build the kit – the kit includes resistors, capacitors, jock, relay, LED lights, electronic board, battery house and more…

The circuit operates on a voltage of 3.3-5 volts (battery house is attached, batteries are not included)

*In order to build the kit, you must equip yourself with a soldering iron and tin:
To purchase a perfect soldering kit
To purchase a USB soldering iron
to purchase tin
The circuit comes with marking the locations of the components on the board and is intended for those with knowledge of reading circuits and soldering.