Sunday, July 17, 2011

Notes to self: things learned

Things learned over the last two or three weeks (?? time flies):

Op-amp filter design and optimization (picking resisters for gain values, differential amplifiers to boost range of ADC)
Piezos, transducers, FSRs, tiny light sensor SMDs
A bit of Rhino (boolean operations), more solidworks tricks (features: add and subtract)
Relearned the lasercutter, observed cutting of 1'' diameter clear cylindrical acrylic
Mold making and casting (Sil 325, 6, rubber)
Shopbot CNC to STL to Gcode -- for milling out wax mold

SMD soldering (zero resistors and tiny components!)
Circuit debugging (multimeter-ing ahoy and battery plug schematics)
AVR programming (avrdude, ISP cable, usbtiny programmer, ISP vs. serial, why the USB port fail on my netbook, codeblocks setup, ladyada tutorial), atmel datasheets, DDR ports pins pin-numbers

Code for America:
What makes a good API wrapper (auto-completion triggers are good, documentation is good),
Code coverage, pep8, vi setup (nerdtree, Janus, other people's github dotfiles)
Github / git
Need to learn Jenkins for continuous coverage

EL wire (, Jordan's "the best conductive thread ever -- 30 ohm/yard"), conductive thread resistances
RFID reader / card scanner costs, wireless setup costs
McMaster ordering, parts finding (robot marketplace, summary of surplus sites:, ebay is trustworthy), steel ordering (Turner Steel)
MIG welding
A bit of Eagle routing (simple 555 circuit), toner transfer ironing
PCB / flatbed epson printers (epson = piezoelectric printheads,

Also, resolved to ask infinite questions! That way, when more girls show up at MITERS, I can answer their questions :) I have to live up to the title of a being junior now...

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