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Steven J Greenfield

ET, EET, CET and an information sponge

Lacey, WA
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1 Following
4 Projects
11 Likes
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This user joined on 08/16/2014.

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OlyMEGA
1.1k
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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 10e-11F.
Project Owner Contributor

Dual TLC555 Capacitance Meter 0.1pF Resolution

Steven J GreenfieldSteven J Greenfield

276
2
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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

91
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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

157
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Just a fun Tesla-punk kissing meter. A couple each hold a copper handle and kiss. Large meter, huge vacuum tube, arcs and sparks.
Project Owner Contributor

Relationship Meter

Steven J GreenfieldSteven J Greenfield

94.4k
1.2k
78
348
A powder and inkjet 3D printer based on HP45 inkjet technology
Project Owner Contributor

Oasis 3DP

Yvo de HaasYvo de Haas

21.3k
200
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An Open Source Linear Actuator
Project Owner Contributor

Linear PCB Motor

Carl BugejaCarl Bugeja

19.9k
157
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157
A rugged cyberdeck with network hub and SDR
Project Owner Contributor

Cyberdeck1

cyzooniccyzoonic

19.7k
80
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A DIY oscilloscope probe to dig small differential signals embedded in high common mode voltages.
Project Owner Contributor

A 10X 100MHz Differential Probe

Bud BennettBud Bennett

17.2k
56
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A 3D printed portal gun, which projects animated portals.
Project Owner Contributor

Interdimensional Portal Gun

Daren SchwenkeDaren Schwenke

14.9k
204
14
149
A touchscreen control panel for Grbl controllers with MPG handwheel and hardware inputs.
Project Owner Contributor

Touchscreen Control Panel for Grbl

Uriah LiggettUriah Liggett

14.4k
149
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Design, development and build of open-sourced SLS 3D Printer.
Project Owner Contributor

SLS4All - Affordable SLS 3D Printer

Tomas StarekTomas Starek

8.3k
48
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Experimental PCB single layer transformer - proof of concept
Project Owner Contributor

PCB coil joule thief

bobriciusbobricius

7.1k
87
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Independently charge 10 Li-Ion cells @ 1A each, with $18 of Prime parts and an ATX supply.
Project Owner Contributor

Minimalist Li-Ion Charger

Daren SchwenkeDaren Schwenke

7k
24
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Breaking the stigma that soldering 0402 parts is hard by dead-bugging a chip scale DSBGA packaged 555 timer with 01005 parts
Project Owner Contributor

Pico555

TWiresTWires

5.7k
236
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EBM - 3D Metal & Ceramic Printer - Electron Beam Melting
Project Owner Contributor

3D Metal & Ceramic Printer

Agustin CruzAgustin Cruz

5.3k
44
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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

4.1k
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Now the time to get high precision frequency standard less than $10!
Project Owner Contributor

How to get high precision frequency standard ?

kodera2tkodera2t

3.3k
28
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A couple of cheap dummy loads for testing radios
Project Owner Contributor

The $50 Ham: Dummy Loads

Dan MaloneyDan Maloney

3.1k
19
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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

1.7k
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A Basic Breakout for the ADG732 32 Channel Multiplexer and Video Tutorial!
Project Owner Contributor

MegaMUX - 32 Channel to 1 Multiplexer

Sean HodginsSean Hodgins

1.5k
13
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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

560
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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

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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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