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Douglas Ray

Retired equipment technician LAPD

Southern California
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22 Following
1 Projects
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douglas-ray
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This user joined on 05/17/2023.

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A modification to the Atos Vega Plug. Allows showering without the possibility of water entering the stoma.
Project Owner Contributor

Laryngectomy Patients Shower Aid

douglas-rayDouglas Ray

50.8k
5.4k
30
191
FREE and Open Source, Arduino Due based Telescope Control GOTO
Project Owner Contributor

rDUINOScope Boiana

dessislav-gouzgounovDessislav Gouzgounov

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748
6
139
Maker Your Own DIY Professional Bench Power Supply Using A Old Computer PSU.
Project Owner Contributor

Maker Your Own Professional Bench Power Supply

mukesh-sankhlaMukesh Sankhla

19k
636
24
86
A LISP-programmable laptop with battery life measured in years
Project Owner Contributor

PotatoP

andreas-eriksenAndreas Eriksen

18.5k
3.6k
0
11
How to share a USB key and make a backup of a Dongle?
Project Owner Contributor

Share a USB dongle - Software Solution

spencerkrit78spencerkrit78

10.1k
3.4k
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Will introduce 10 free PCB design software and analyze the features of each software
Project Owner Contributor

10 Best Free PCB Layout Software

catherine-suiCatherine Sui

8.1k
1.8k
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EBM - 3D Metal & Ceramic Printer - Electron Beam Melting
Project Owner Contributor

3D Metal & Ceramic Printer

agustin-cruzAgustin Cruz

7.4k
3.2k
0
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M-Bus Shield for smartmetering with Arduino MKR
Project Owner Contributor

Arduino M-Bus Master Shield

hwhardsofthwhardsoft

7.3k
4.8k
10
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Tomographic scanner using my X-Ray machine, a simple motor to rotate the object and a reconstruction software
Project Owner Contributor

X-Ray CT Scanner

francisco-piernasFrancisco Piernas

5.4k
1.1k
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In this project we show how we made a single-lead ECG monitor for heart-rate variability using the MAX30003 and an Arduino Uno.
Project Owner Contributor

Single-lead ECG & heartrate variability monitor

ashwin-k-whitchurchAshwin K Whitchurch

5.3k
4.1k
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a hardware sampler based on the raspberry pi running bare metal (so no Linux)
Project Owner Contributor

openSampler

nick-verlindenNick Verlinden

4.3k
42
9
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An intelligent robot that manages my medication regimen.
Project Owner Contributor

Pill dispenser robot

m-bindhammerM. Bindhammer

3.3k
3.3k
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A fully open-source digital power electronics technology framework for fast prototyping switch-mode power supplies
Project Owner Contributor

DIY Power for all - OwnTech

jean-alineiJean Alinei

2.9k
1.7k
22
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Bringing a vintage DIY binary counting computer back to life
Project Owner Contributor

Restoring the TRANSBINIAC computer

johnJohn

1.5k
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Hackaday.io code of conduct
Project Owner Contributor

Code of Conduct

lutetiumLutetium

1.2k
1.2k
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We are building a robot that automates 3D printers in a 3D printer farm.
Project Owner Contributor

A robot for automating 3D printers

swaleh-owaisSwaleh Owais

1k
1k
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a series of opensource lamps to experiment with and master lighting.
Project Owner Contributor

3D Printed Opensource Lamps

progressthProgressTH

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In order to display the function of NE555, I made an object that can replace two resistors and a diode.
Project Owner Contributor

Spot the NE555!

airpocketAIRPOCKET

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Minimal macro keyboard
Project Owner Contributor

Keeblet

dehipudeʃhipu

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