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Tag Archives: pen

Electric Paint Pen With Conductive Ink Could Teach You Basics About Circuits

electric-paint-pen

This is a pen with a special ink that when dry, will conduct electricity. Meaning you can literally draw some basic circuits on a piece of cardboard and they’ll work. Connect them to some resistors, or LEDs or whatever else elements go into a circuit and teach yourself or a young one the fundamentals. The surface resistivity is 55 Ω/Sq @ 50 microns, if that has any meaning to you, and you should probably not use it with voltages above 12V. It’ll work on just about any surface except skin, and maybe metal and will set you back all of $12 or $19 for two.

[ Product Page ] VIA [ Technabob ]

Lernstift Linux Smart Pen Vibrates When You Spell Something Wrong

Lernstift Linux smart pen

If you’re particularly bad at spelling, then this pen can help you out. It’s the Lernstift smart pen, and it vibrates gently whenever its user makes a spelling error. It looks like a regular pen on the outside, but it packs some pretty unique and sophisticated tech on the inside. The Lernstift actually has an embedded Linux inside it’s tiny frame, which is equipped with a motion sensor, memory, and processor, along with a WiFi and vibrating module.

The pen can be used as a learning tool all by itself or in conjunction with apps. The Lernstift has two primary functions: orthography mode, which recognizes and points out spelling errors, and calligraphy mode, which points out any flaws in penmanship form or legibility. The pen will need to be calibrated during its first use

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