This laser pointer or laser pen is a small handheld device with a laser diode emitting a very narrow coherent low-powered laser beam of visible light, it is frequently used in lecture halls and demonstrations to point at topics of interest on a presentation board. In a school setting, they have become ubiquitous, and they are very useful teaching aids....
It is a good plastic box for Raspberry Pi, which can protect it with one of these snazzy plastic enclosures?. These cases protect the Raspberry Pi from things like rogue wires that might short it out while still allowing full access to the board! Simply snap the RPi into the bottom half of the enclosure, then snap the two sides together. The e
Standard size breadboard that is perfect for prototypes. It does even have power rails on the sides to allow for more than one power level. The one you will get is white and not transparent as in the picture.Breadboard
A simple mechanical structure, very convenient platform to build upon with 4 DC motors that can be controlled separately. Two levels of acrylic plates to allow for bigger electronics. Very simple assembly.
Do you like Amazon Kindle’s E-paper screen? E-ink Display Shield, an E-paper & shield which uses exactly the same techniques, provides you a smooth and clear reading experience for you. It has a super-low power consumption. It won’t consume power until next refreshing of its screen, which enables it to maintain a clear display even in the power-off...
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