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Steven J Greenfield

ET, EET, CET and an information sponge

Lacey, WA
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4 Followers
3 Following
7 Projects
27 Likes
steven-j-greenfield
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This user joined on 08/16/2014.

2.5k
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Two 555 timers turn capacitance into an analog voltage readable on a DMM. With a modern 600.00mV scale, that is readable to 10femtofarad.
Project Owner Contributor

Dual TLC555 Capacitance Meter 0.1pF Resolution

steven-j-greenfieldSteven J Greenfield

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Recreating a 555 timer based Class D PWM amplifier I first built in the '80s.
Project Owner Contributor

Class D Amplifier TLC555 Timer Based PWM Audio Amp

steven-j-greenfieldSteven J Greenfield

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3
Using two 555 timers to drive a pulse reverse electroplating/electroetching bath.
Project Owner Contributor

Pulse Reverse Electroplating/Electroetching 555

steven-j-greenfieldSteven J Greenfield

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Measures belt tension for 3D printers and CNC machines
Project Owner Contributor

3D printer/CNC belt tension measurement

steven-j-greenfieldSteven J Greenfield

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A simple remote level sensor that only requires two wires to provide power to the sensor and send the signal back to a microcontroller.
Project Owner Contributor

Remote Continuous Liquid Level Sensor 555 Timer

steven-j-greenfieldSteven J Greenfield

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Automated cable tester to speed testing of some fairly simple cables, that we tend to get in for repair in large quantities.
Project Owner Contributor

Automatic Cable Tester

steven-j-greenfieldSteven J Greenfield

View all 7 projects

60.6k
452
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419
7 segment clock
Project Owner Contributor

EPTAORA

ekaggrat-singh-kalsiekaggrat singh kalsi

47k
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9
279
A rugged cyberdeck with network hub and SDR
Project Owner Contributor

Cyberdeck1

cyzooniccyzoonic

38.2k
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100 MSps 2ch oscilloscope based on Raspberry Pi Pico
Project Owner Contributor

RPScope

jgpeirojgpeiro

32k
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Design, development and build of an open-sourced SLS 3D Printer suitable for hobby users.
Project Owner Contributor

SLS4All - Affordable SLS 3D Printer

tomas-starekTomas Starek

18.6k
214
14
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A touchscreen control panel for Grbl controllers with MPG handwheel and hardware inputs.
Project Owner Contributor

Touchscreen Control Panel for Grbl

uriah-liggettUriah Liggett

9.4k
282
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A lost art, that few can still use, and guard viciously as a company secret.
Project Owner Contributor

Universal Coil winding Machine

brettBrett

8.8k
57
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An open source LC-Meter, which is very accurate and easy to build. All the documentation included.
Project Owner Contributor

build an LC Meter

core-weavercore weaver

8.3k
2.3k
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EBM - 3D Metal & Ceramic Printer - Electron Beam Melting
Project Owner Contributor

3D Metal & Ceramic Printer

agustin-cruzAgustin Cruz

8.2k
55
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Replace your old 78xx voltage regulators with this much more efficient pin-compatible buck converter.
Project Owner Contributor

78xx Replacement

stefan-wagnerStefan Wagner

5.2k
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A simple replica of the tesla gun from one of my favorite shows. My first project, hoping to get it light up in different brightness levels.
Project Owner Contributor

Warehouse 13 Tesla Gun

melissa-matosMelissa Matos

4k
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The filaments used in "vintage" Edison type light bulbs are readily available and can be used to make 7 segment displays.
Project Owner Contributor

Using LED filaments to make a digital clock

jay-hamlinJay Hamlin

3.7k
38
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An open project to bring new functionalities to vintage phones with the nice old rotary, keeping their fascinating vintage style alive.
Project Owner Contributor

Vintagephone - old rotary phone retrofitting

giulio-ponsGiulio Pons

3.1k
8
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A Star Trek away mission themed escape room in a box.
Project Owner Contributor

Star Trek Shuttle Console

rubenfixitRubenFixit

2.3k
16
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<$10. <10μm repeatable. >10kg capacity. Laser-cut 1/8" hardboard. For 100mm x 6mm rod, but semi-parametric. Handwheel or stepper drive. CAD.
Project Owner Contributor

A Cheap Compact Linear Slide

paul-mcclayPaul McClay

1.1k
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This is based on DIY NanoDrop spectrometer design available on Hackteria
Project Owner Contributor

DIY Millivolume spectrophotometer

wrijuWriju

683
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Two 555 timers and oscilloscope X-Y mode to generate animated art
Project Owner Contributor

Oscilloscope Art using 555 Timers

ted-friedTed Fried

580
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Opensource T12 soldering iron controller.
Project Owner Contributor

Open-T12-Soldering-Station

cory-lytlecory lytle

531
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A quick and cheap DIY solution for making your own custom display cluster to fit in your car. Car must support OBDII.
Project Owner Contributor

Custom Car Display

harrirenneyHarriRenney

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Bits

AVR wrote 10/06/2016 at 05:48 • point

thanks for the follow on my ESP32 lib, I'm quite jazzed at the attentiion its been getting, open source FTW

  Are you sure? yes | no

Steven J Greenfield wrote 08/16/2014 at 19:33 • point
Very much an electronics person. Learning to program.

  Are you sure? yes | no

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