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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
steven-j-greenfield
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This user joined on 08/16/2014.

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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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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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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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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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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

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Building an HMD with no special parts, to make work easier and safer
Project Owner Contributor

Arduino Glasses a HMD for Multimeter

alain-mauerAlain Mauer

222.3k
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Fully stand-alone HF (Shortwave) Software Defined Transceiver & Vector Network Analyzer. Designed for rugged portable use. Highly hackable.
Project Owner Contributor

PortableSDR

michael-r-coltonMichael R Colton

139k
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Science in your hand. A pocket-sized instrument capable of visualizing and exploring the world around you.
Project Owner Contributor

Open Source Science Tricorder

peter-jansenpeter jansen

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A powder and inkjet 3D printer based on HP45 inkjet technology
Project Owner Contributor

Oasis 3DP

yvo-de-haasYvo de Haas

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1,500.1k
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Follow for the 'Hacklet' and latest news about hackaday.io
Project Owner Contributor

Hackaday.io Project

lutetiumLutetium

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Puts an e3d hotend on the famous $200 printer
Project Owner Contributor

Monoprice MP Select Mini E3D Hotend Adapter

benchoffBenchoff

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474
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7 segment clock
Project Owner Contributor

EPTAORA

ekaggrat-singh-kalsiekaggrat singh kalsi

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KiCAD component and footprint libary for ESP32 ,ESP32-WROOM, and ESP3212 modules
Project Owner Contributor

ESP32 KiCAD Library

avrAVR

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A DIY GPS disciplined 10 MHz reference clock
Project Owner Contributor

GPS Disciplined xCXO

nick-sayerNick Sayer

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A rugged cyberdeck with network hub and SDR
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Cyberdeck1

cyzooniccyzoonic

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You know, the kind that are actually blue.
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Authentic Blueprints

tyler-andersonTyler Anderson

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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

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232
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100 MSps 2ch oscilloscope based on Raspberry Pi Pico
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RPScope

jgpeirojgpeiro

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Design, development and build of an open-sourced SLS 3D Printer suitable for hobby users.
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SLS4All - Affordable SLS 3D Printer

tomas-starekTomas Starek

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An MPC style MIDI controller featuring a 4x4 FSR matrix and based on Teensy 3.0, fully compatible with the Teensy Audio Adaptor Board
Project Owner Contributor

DIY USB MIDI controller MPC style

michele-perlaMichele Perla

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Single pass Lower Temp Toner Transfers. Now available as a DIY kit. Open Source, Dual laminator compatible! Apache AL18P also.
Project Owner Contributor

Apache AL13P & TL-320b - One Pass PCB Toner Xfer

mosaicmercmosaicmerc

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Network Analyzer on an Arduino Shield which covers from 0-72MHz.
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Arduino Network Analyzer

brett-killionBrett Killion

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Using artificial intelligence to identify a disease by its symptoms
Project Owner Contributor

Medical tricorder

m-bindhammerM. Bindhammer

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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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