ChemHacker has posted schematics and code for a scanning tunneling microscope. [Sacha De'Angeli] finalized the proof-of-concept design for version 0.1 and released all of the information under the Gnu general public license version 3. You’ll need to build a sensor from a combination of a needle, a piezo, and a ring of magnets. There’s an analog circuit that … Read the rest
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