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John Opsahl

I am actively looking for my next unbounded design challenge.

Dallas, Texas

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This user joined on 07/09/2019.

My Projects

a custom three axis cnc machine for carving candles.

CNC Candle Carver

Hackaday Prize 2019

a machine to create canvas paintings of your favorite digital images

If ( ) Then {Paint}

Hackaday Prize 2020

a safe, low-cost IV fluid warmer solution; for when commercially available IV fluid warmers are too expensive or cannot be sourced

OpenFluidWarmer

create canvas paintings from digital images using a standard three axis cnc machine

Project Convert To Paint

Hackaday Prize 2020

detect, log, and analyze boat traffic

BoatDetect

hacks to avoid touching shared surfaces in public spaces

Hands-Free

View all 9 projects

My Contests

Time to get loggin'! Capture a creative new data set for this data logging contest.

Data Loggin' Contest

Things I've Built

Automated 5 Gallon Bucket Feeder

A custom 5 gallon bucket feeder for pets. https://www.instructables.com/id/Automated-5-Gal-Bucket-Feeder/

yaxb

A joystick controlled wall plotter with record and playback capabilities.

Skittle Pixel8r

A machine that creates images using Skittles as pixels. https://www.instructables.com/id/Skittle-Pixel8r/

Projects I Like & Follow

A Raspberry Pi Ceph Cluster using 2TB USB drives.

Raspberry Pi Ceph Cluster

Robert Rouquette

Single rotor, "singlecopter", selfmade drone with air vanes for position control as a full remake of the Ball-Drone Project

The Ball-Drone Project MK II

Benjamin Prescher

I have trained wild magpies in my Garden to trade litter for food! The whole project relies on mechanical design, electronics, software and

BirdBox

E-Paper Multipurpose Dashboard powered by Li-Po with roughly four months battery life

EPaper Dashboard

Because we need to prove there are still things people do better than machines...

Robotic Trombone: The RoboTrombo Music Machine

USB hid keyboard ... etc. for Raspberry PI is back in black, more beauty with more features ;)

mini (Pi)QWERTY USB keyboard II.

We’ll train a neural network, convert it to a TensorFlow Lite model, and load it onto an ARM micro-controller.

Remoticon: Tiny ML

GETULA

ekaggrat singh kalsi

This device is for automating a timed inflation/deflation cycle for an inflatable vest.

Automatic Timed Inflation Device

GPS Guided Parachute Recovery System

R2Home

A 3D printable servo controllable butterfly valve for my air filter system

3D printable 125mm butterfly valve

Primary/secondary water loops & 12 peltier units with a 0-30°C set-point.

1kW Solid State Peltier Heat Pump

Reversible, no extra switch, multiple frequencies delay module for classic British cars.

Classic car intermittent wiper motor controller

An Arduino powered flow-meter for use in geography river studies and environmental monitoring projects

Open Flow Meter

We run a Precious Plastic Workspace and want to expand our abilities to process plastic. This project is about making plastic sheets.

Making Plates out of Recycling Material

Robot Frog Prototype made from a flexible PCB

FlexFrog

Visy is a Rapsberry Pi 3 and Raspberry Camera V2 based vision system project for makers and students.

visy vision system

10 components to assemble a battery powered plain vanilla ESP32 module for something (hopefully) useful

Minimal Battery Powered ESP32

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Bits

nj1337 wrote 09/24/2020 at 13:47

Hello ! Thank you for following https://hackaday.io/project/173600-paqm-portable-air-quality-meter

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