Notes concerning “Electronics”
- A filesystem design sketch modeled on Lucene 2007 to 2009 (44 minutes)
- bytecode interpreters for tiny computers 2007-09 (64 minutes)
- Illuminating yourself with 10 kilolux of LEDs to combat seasonal affective disorder 2013-05-17 (5 minutes)
- Charge transfer servo 2013-05-17 (2 minutes)
- Cheap shit ultrawideband 2013-05-17 (10 minutes)
- Harvesting energy with a clamp-on transformer 2013-05-17 (7 minutes)
- Ghettobotics: making robots out of trash 2013-05-17 (42 minutes)
- You’re pretty much fucked if you want to build an oscilloscope on the AVR’s ADC 2013-05-17 (3 minutes)
- Steampunk spintronics: magnetoresistive relay logic? 2013-05-17 (15 minutes)
- Quadtree compression of terminal video RAM to do a megapixel windowing system in 6 KiB 2013-05-17 (9 minutes)
- Saturation detector 2013-05-17 (3 minutes)
- A resistive-capacitive trackpad made from garbage and three ADC microcontroller pins 2013-05-17 (updated 2013-05-20) (17 minutes)
- The Tinkerer’s Tricorder 2013-05-17 (updated 2014-04-24) (27 minutes)
- Trellis-coded buttons to run a whole keyboard off two microcontroller pins 2013-05-17 (updated 2019-06-13) (31 minutes)
- Building a resilient network out of litter 2014-04-24 (4 minutes)
- lattices, powersets, bitstrings, and efficient OLAP 2014-04-24 (18 minutes)
- Precisely how is 3 “optimal” for one-hot state machines, sparse FIR kernels, etc.? 2014-04-24 (8 minutes)
- An extremely simple electromechanical state machine 2014-04-24 (17 minutes)
- Making a mechanical state machine via sheet cutting 2014-04-24 (updated 2015-09-03) (8 minutes)
- Keyboard-powered computers 2014-10-25 (updated 2018-10-28) (27 minutes)
- Simplified computing, down to the level of mining raw materials 2015-09-03 (22 minutes)
- A hand-powered computer? 2015-09-03 (updated 2017-07-19) (11 minutes)
- Bitstream dsp 2015-09-03 (updated 2019-06-23) (3 minutes)
- Virtual instruments 2015-11-09 (3 minutes)
- Making a logic gate of a single MOSFET 2016-06-28 (5 minutes)
- Transmission line computer 2016-07-11 (updated 2019-07-23) (7 minutes)
- How can we build an efficient microcontroller-based amplifier? 2016-07-13 (5 minutes)
- Jellybean ICs 2016 2016-07-14 (updated 2019-05-05) (17 minutes)
- How would you maximize the energy density of a capacitor? 2016-07-27 (6 minutes)
- Electroluminescent matrix 2016-07-27 (2 minutes)
- Matrix memory 2016-07-27 (1 minute)
- Arduino radio 2016-07-30 (4 minutes)
- Coinductive keyboard 2016-07-30 (4 minutes)
- Solar-cell Geiger counters 2016-07-30 (1 minute)
- Transmission line diode computation 2016-07-30 (3 minutes)
- Argentine oscilloscope pricing 2016 2016-08-16 (4 minutes)
- Digital logic with lasers, induced X-ray emission, and neutron-induced fission, for femtosecond switching times? 2016-09-06 (3 minutes)
- Low-power microcontrollers for a low-power computer 2016-09-06 (updated 2018-10-28) (18 minutes)
- Circuit notation 2016-09-08 (updated 2017-04-18) (7 minutes)
- Graph construction 2016-09-08 (updated 2017-07-19) (25 minutes)
- Further notes on algebras for dark silicon 2016-09-17 (updated 2017-04-18) (23 minutes)
- Solar-powered portable computers 2016-09-17 (updated 2018-10-28) (15 minutes)
- License-free femtowatt UHF radio transceiver ICs under a μJ per bit 2016-09-19 (4 minutes)
- Laser ablation of zinc or pewter for printed circuit boards 2016-09-19 (4 minutes)
- Hybrid RAM 2016-09-24 (5 minutes)
- Marking metal surfaces with arcs 2016-10-06 (4 minutes)
- Spark particulate sieve 2016-10-06 (updated 2016-10-11) (6 minutes)
- Current hardware trends tend toward raytracing 2016-10-07 (4 minutes)
- Nonlinear differential amplification 2016-12-14 (2 minutes)
- My attempt to learn about jellybean electronic components 2017-02-08 (updated 2019-08-11) (19 minutes)
- Finite function circuits 2017-02-16 (updated 2019-05-17) (34 minutes)
- Non-inverting logic 2017-02-18 (updated 2019-07-20) (9 minutes)
- A 7-segment-display font with 68 glyphs 2017-02-21 (4 minutes)
- Lab power supply 2017-02-21 (updated 2018-06-18) (17 minutes)
- Vibratory powder delivery 2017-02-25 (2 minutes)
- Augmenting a slow precise ADC with a sloppy fast high-pass filtered parallel ADC 2017-03-20 (2 minutes)
- Loading new firmware on an AVR 2017-03-31 (3 minutes)
- Could you do DDS of comprehensible radio signals with an Arduino? 2017-03-31 (4 minutes)
- Can you bitbang USB with an ATMega’s RC oscillator? 2017-04-04 (1 minute)
- The Magic Kazoo: a synthesizer you stick in your mouth 2017-04-04 (updated 2019-05-12) (6 minutes)
- Disk oscilloscope 2017-04-10 (updated 2017-06-20) (3 minutes)
- TV oscilloscope 2017-04-10 (updated 2017-06-20) (4 minutes)
- Reflections on rebraiing calculators with this RPN calculator code I just wrote 2017-04-11 (4 minutes)
- Laser printer oscilloscope 2017-04-18 (updated 2017-06-20) (2 minutes)
- Minimum hardware and software to get a flexible notetaking device running 2017-04-28 (4 minutes)
- Can a simple nonlinear VCO enable super cheap oscilloscopes? 2017-05-04 (updated 2017-05-10) (5 minutes)
- Dumb vocoder 2017-05-10 (2 minutes)
- Adding GPIO lines over USB with a Saleae logic analyzer 2017-05-10 (1 minute)
- VCR oscilloscope 2017-05-10 (updated 2017-06-20) (2 minutes)
- Ideas to explore 2017-05-29 (4 minutes)
- CCD oscilloscope 2017-06-20 (updated 2017-07-04) (7 minutes)
- A stack of stacks for simple modular electronics 2017-06-27 (5 minutes)
- Constant current switching capacitor charging 2017-07-19 (1 minute)
- An RPN CPU instruction set doubling as user interface 2017-07-19 (updated 2019-07-10) (22 minutes)
- Bench trash power supply 2018-04-27 (9 minutes)
- Cassette tape capacity 2018-04-27 (1 minute)
- Earring computer 2018-04-27 (1 minute)
- Urban autarkic network 2018-04-27 (1 minute)
- Exploration of using RF current sources instead of ELF voltage sources for mains power 2018-04-30 (updated 2018-07-05) (29 minutes)
- Arduino curve tracer 2018-06-17 (10 minutes)
- Diode logic 2018-06-17 (16 minutes)
- Resistor assortment 2018-06-17 (4 minutes)
- Snap logic 2018-06-17 (3 minutes)
- Word stream architecture 2018-06-17 (13 minutes)
- Transistors vs. Microcontrollers 2018-06-17 (updated 2018-07-05) (8 minutes)
- Turning off the power supply for every sample to reduce noise 2018-06-18 (2 minutes)
- Lithium battery welder 2018-06-21 (updated 2019-01-22) (2 minutes)
- The TWI and I²C buses and better alternatives like CAN and RS-485 2018-06-28 (updated 2018-07-05) (24 minutes)
- Hacking a buck converter into a class-D amplifier? 2018-06-30 (4 minutes)
- The Adafruit Feather 2018-06-30 (1 minute)
- Notes on the STM32 microcontroller family 2018-06-30 (updated 2018-10-28) (42 minutes)
- Electric hammer 2018-07-02 (updated 2018-07-05) (14 minutes)
- Capacitors: some notes on tradeoffs 2018-07-05 (5 minutes)
- Can you turbocharge the STM32 ADC to build an oscilloscope? 2018-07-14 (5 minutes)
- Microlens vibrating lightfield 2018-07-14 (updated 2018-07-15) (11 minutes)
- Comparable counters 2018-08-16 (1 minute)
- Notes on circuitry for the Nutra seed activator 2018-08-16 (20 minutes)
- Gradient pixels 2018-08-16 (updated 2018-10-28) (10 minutes)
- Text editor design for e-ink displays 2018-10-28 (23 minutes)
- Time domain analog chaos 2018-10-28 (4 minutes)
- The details of the GPU in this laptop 2018-10-29 (2 minutes)
- Performance properties of sets of bitwise operations 2018-11-06 (updated 2018-11-07) (22 minutes)
- Atmospheric pressure harvesting phoenix egg 2018-11-23 (14 minutes)
- Parallel register file 2018-11-27 (2 minutes)
- The Stretch book is truly alien 2018-11-27 (6 minutes)
- What can you build out of 256-byte ROMs? 2018-12-02 (1 minute)
- Arduino safety 2018-12-10 (4 minutes)
- A two-operand calculator supporting programming by demonstration 2018-12-11 (25 minutes)
- Matrix exponentiation linear circuits 2018-12-18 (4 minutes)
- Hardware multiplication with square tables 2019-02-08 (updated 2019-07-09) (4 minutes)
- Groping toward a high-efficiency speaker driver 2019-04-02 (15 minutes)
- Paper foil relays 2019-04-02 (updated 2019-04-24) (11 minutes)
- Macroscopic capacitive DLP 2019-04-08 (1 minute)
- Hall-effect Wheatstone bridges for impractical steampunk electronic logic gates 2019-04-24 (2 minutes)
- Measuring submicron displacements by pitch bending a slide guitar 2019-05-05 (18 minutes)
- Free space optical coding gain 2019-05-08 (updated 2019-05-09) (4 minutes)
- A phase-change soldering iron 2019-05-08 (updated 2019-05-09) (14 minutes)
- Inductor thermocouple sensing 2019-06-01 (21 minutes)
- Induction kiln 2019-06-02 (19 minutes)
- How to get 6 volts out of a 7805, and why you shouldn’t 2019-06-08 (updated 2019-06-10) (7 minutes)
- Smooth hysteresis 2019-06-11 (13 minutes)
- Measuring the moisture content of coffee and other things with dielectric spectroscopy 2019-07-16 (updated 2019-07-17) (28 minutes)
- Printed circuits on fired-clay ceramic 2019-08-13 (11 minutes)