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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

279
2
1
3
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

157
1
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0
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

95
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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

94.6k
1.1k
81
351
A powder and inkjet 3D printer based on HP45 inkjet technology
Project Owner Contributor

Oasis 3DP

Yvo de HaasYvo de Haas

21.4k
200
30
173
An Open Source Linear Actuator
Project Owner Contributor

Linear PCB Motor

Carl BugejaCarl Bugeja

20.1k
162
4
161
A rugged cyberdeck with network hub and SDR
Project Owner Contributor

Cyberdeck1

cyzooniccyzoonic

19.8k
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

14.6k
150
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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
247
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EBM - 3D Metal & Ceramic Printer - Electron Beam Melting
Project Owner Contributor

3D Metal & Ceramic Printer

Agustin CruzAgustin Cruz

5.3k
45
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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

3.2k
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
22
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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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