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Douglas Ray

Retired equipment technician LAPD

Southern California
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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

54.8k
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FREE and Open Source, Arduino Due based Telescope Control GOTO
Project Owner Contributor

rDUINOScope Boiana

dessislav-gouzgounovDessislav Gouzgounov

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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

21.8k
796
24
97
A LISP-programmable laptop with battery life measured in years
Project Owner Contributor

PotatoP

andreas-eriksenAndreas Eriksen

20.1k
5.3k
0
12
How to share a USB key and make a backup of a Dongle?
Project Owner Contributor

Share a USB dongle - Software Solution

spencerkrit78spencerkrit78

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5.1k
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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

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69
EBM - 3D Metal & Ceramic Printer - Electron Beam Melting
Project Owner Contributor

3D Metal & Ceramic Printer

agustin-cruzAgustin Cruz

8.5k
6.5k
10
91
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

8k
3.3k
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6
M-Bus Shield for smartmetering with Arduino MKR
Project Owner Contributor

Arduino M-Bus Master Shield

hwhardsofthwhardsoft

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51
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An intelligent robot that manages my medication regimen.
Project Owner Contributor

Pill dispenser robot

m-bindhammerM. Bindhammer

7.2k
5.9k
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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

6k
1.4k
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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

4.4k
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70
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

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Bringing a vintage DIY binary counting computer back to life
Project Owner Contributor

Restoring the TRANSBINIAC computer

johnJohn

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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

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38
Hackaday.io code of conduct
Project Owner Contributor

Code of Conduct

lutetiumLutetium

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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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Minimal macro keyboard
Project Owner Contributor

Keeblet

dehipudeʃhipu

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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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