Chemhacker STM OHS Scholarship Submission
Submission to the Open Hardware Scholarship:
An open source digital Scanning Tunneling Microscope for about 1/25th the cost of commercial units.
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8 months ago
chemhacker
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HolidayBot - intro
This is a quick intro video of the HolidayBot I built at Pumping Station: One. This is obviously not chemistry or STM-related, but it was a fun bu...
408 views
Full redesign of the X and Y channels
This is a demo of the fully redesigned X and Y channels of the ChemHackerSTM. The previous design had some serious design flaws - this one provide...
1,016 views
How to Make Glow Powder with Household Chemicals
Jeri shows how to make ZnS:CU glow powder at home with household chemicals. Reaction 1: Flowers of sulfur(sublimated sulfur) + Zn + Cu(penny from ...
jeriellsworth • 41,603 views
Excellent! At home chemistry is awesome!
ChemHackerSTM v0.1 Walkthrough
This is a walkthrough of the ChemHackerSTM v0.1 (proof of concept) device.
This is an arduino-controlled scanning tunneling microscope - all desig...
10,138 views
STM Tip Etching
www.chemhacker.com to find out more about this project.
This is me etching tungsten wire with 2M NaOH, a steel plate, 333-ohm resistance, and 24V ...
1,899 views
Digital to Analog Test
This is a test of nearly all of the STM circuitry - unfortunately I don't have the op-amp gains set properly so the sound from the scanning head is...
6,769 views
SPI control of 10bit DACs by an arduino
This is an arduino controlling a pair of 10bit DACs (the chips are MCP4911s) via serial control (using the SPI protocol).
This is a required step ...
837 views
digital Pots under SPI control from an Arduino
Initial testing of six digital potentiometers on three chips under serial control from an Arduino. This test is part of the ChemHacker open source...
2,458 views
these are MCP42XXX-I/P XXX=010, 050, 100 for the 10k, 50k, and 100k pots, respectively. I used these specific chips because they're cheap, relatively easy to use, available in a DIP package, and they have the number of pots that I needed (two each).
digital Pots under SPI control from an Arduino
Initial testing of six digital potentiometers on three chips under serial control from an Arduino. This test is part of the ChemHacker open source...
2,458 views
thanks! Voting for the OHS scholarship runs 9/14 6pm - 9/15 6pm EST