Hacking a milligram balance (scale) with a Parallax Propeller microcontroller

2013-02-25

details

Jukebox color wheel synchronizer

2012-12-10

details

DIY X-ray backscatter imaging system (airport body scanner)

2012-11-26

details

Large area detector for X-rays

2012-11-04

details

Reverse-engineering and testing an x-ray filament supply

2012-10-29

details

Measuring the voltage, current, and light output of a strobe flash lamp (Speedotron 4803)

2012-10-08

details

Viewing an active electronic circuit with a scanning electron microscope

2012-09-03

details

Measuring the voltage and current of a microwave oven magnetron

2012-06-25

details

Projector HID arc light mounted into a desk lamp

2012-02-12

details

LED mounted in a contact lens for possible virtual / augmented reality displays

2011-12-19

details

Tutorial: Op-amp circuit for force sensor signal conditioning

2011-12-09

details

Microstepping a stepper motor with the SLA7062

2011-10-18

details

Repairing the 5V output from a Mastech HY3005D-3 (cheap import) power supply

2011-08-10

details

Transcranial Magnetic Stimulation project - part 2

2011-08-07

details

Frequency response test for thermal imaging sensor

2011-07-24

details

Product Review: CP06 low-cost AC/DC clamp-on current probe

2011-07-18

details

Transcranial Magnetic Stimulation project - part 1

2011-07-16

details

Extech IR250 infrared thermometer disassembly and plans for thermal imaging

2011-06-24

details

Piezoelectric Braille system with PC parallel port control and HV transistors

2011-04-25

details

Fiberoptic mouse with quadrature encoders and custom shutter buttons

2011-04-14

details

Fiberoptic joystick with quadrature encoders and arduino

2010-12-19

details

DIY flex sensor gloves for possible VR or video game control

2010-12-11

details

1000W xenon arc lamp built into DIY searchlight housing

2010-10-13

details

Remote electronic focus for telescope (DIY remote follow focus)

2010-09-13

details

Web-controlled watering can with siteplayer and arduino

2010-09-05

details

Universal motor speed control by a microcontroller (arduino)

2010-08-29

details

Detectron DG-2 geiger counter teardown and testing

2013-10-08

details

Tongue mouse: Cursor control with your mouth!

2013-11-25

details

Posture-based game controller

2013-11-17

details

Clear flexible printed circuits - first success

2013-10-21

details

Explanation of how kilowatt-hour meters work (electromechanical)

2013-10-06

details

Quartz crystal thickness monitor for vapor deposition in vacuum

2013-09-08

details

Thermocouple vacuum gauge teardown and explanation

2013-06-30

details

How a breathalyzer works (alcohol sensor)

2014-02-24

details

Intro to plasma cleaning

2013-12-15

details

Unusual usage (hours) counter with mercury capillary

2014-05-02

details

Trigger circuit for large xenon flash tubes

2014-04-29

details

Mathematical integration without calculus

2014-06-29

details

Measure the mass of an eyelash with a DIY microbalance

2014-06-08

details

Use an oscilloscope to collect optical spectral data

2014-06-02

details

Measure car engine speed RPM via the cigarette lighter

2014-05-25

details

Electron microscope image capture via microcontroller (with drill bit animation)

2015-08-30

details