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John Loeffler

Mechanical Engineer Manager of College of Engineering 3D Printing Lab. I Like to make stuff that is useful or interesting.

Boca Raton, Florida
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150 Followers
182 Following
17 Projects
955 Likes
john-loeffler
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This user joined on 04/25/2015.

8.7k
63
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An Arduino UNO Compatible Board with isolated Glowing headers and some Extras
Project Owner Contributor

Uno Plus+

john-loefflerJohn Loeffler

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Using Arduino Leonardo HID Control MAC/PC (No Drivers Required)
Project Owner Contributor

Vo-LUM Control

john-loefflerJohn Loeffler

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Uses an E-ink Display to Realtime Update Select Crypto Currencys
Project Owner Contributor

CRYPTOiNK

john-loefflerJohn Loeffler

6.9k
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A GPS controlled Spotlight Drone
Project Owner Contributor

Lumos - Spotlight Drone

john-loefflerJohn Loeffler

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Open Source Analog Acoustic Levitation PCB
Project Owner Contributor

Open LEV

john-loefflerJohn Loeffler

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I didn't have enough to buy a Lab Bench PSU... So I made one.
Project Owner Contributor

OPEN Power

john-loefflerJohn Loeffler

View all 17 projects

5.9k
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Using UV LEDs, Phosphorescent Glow material, and clever mechanisms, a reusable and exciting display can come to life!
Project Owner Contributor

UV Glow-In-The-Dark Laser Displays

tuckershannonTuckerShannon

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85
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Flea-Scope™ is a very low-cost and easy-to-use 18 Msps USB oscilloscope and mixed-signal logic analyzer.
Project Owner Contributor

Flea-Scope USB O-scope (18 Msps, $13 BoM, WebUSB)

richard-testardiRichard Testardi

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World's Smallest RP2040 Development Board
Project Owner Contributor

RPDot

william-herrWilliam Herr

6.1k
91
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A compact, silent, high-performance open-source closed-loop (servo) stepper motor driver with USB, CAN-FD and 48V support
Project Owner Contributor

CLN17 V2: $12 BoM Closed-Loop Driver for NEMA17

anton-khrustalevAnton Khrustalev

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DIY oscilloscope with STM32 Microcontroller which has better performances than Arduino and is also cheaper.
Project Owner Contributor

DIY Simple 500КHz Oscilloscope with STM32

mircemkmircemk

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14
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An input device to enter any Unicode character over USB, in style
Project Owner Contributor

Unicode Binary Input Terminal

stephen-holdawayStephen Holdaway

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Managing resistors is a chore. Well, with the Resistorganizer, you can just jam your loose resistors into a breadboard and be done with it.
Project Owner Contributor

The Resistorganizer

mikeMike

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This frequency meter uses an inexpensive STM32 microcontroller and this time, thanks to his better perfomances of the MCU, the frequency ra
Project Owner Contributor

Simple STM32 Frequency meter from 1Hz to 30 MHz

mircemkmircemk

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Portable Variable Power Supply
Project Owner Contributor

CH32X035 USB PD Adapter

stefan-wagnerStefan Wagner

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kinetic sound and light sculpture
Project Owner Contributor

intermittent luminal phase

eirik-brandalEirik Brandal

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A simple project involving a Sound Sensor Module, connected to and controlling an LED.
Project Owner Contributor

Raspberry Pi Sound-Activated LED

electorialsElectorials

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This is a clone board on which I soldered all the components, it is fully compatible with Arduino Nano and UNO.
Project Owner Contributor

I made an ARDUINO NANO Clone Board

lithium-ionLithium ION

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I give my earphones a wireless audio transmitting power, Now I can plug any 3.5mm headphone/earphone and listen over bluetooth.
Project Owner Contributor

My 3.5mm Earphones got Wireless Bluetooth

electroboyElectroBoy

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snackster laptop
Project Owner Contributor

sudo make me a sandwich [cyberdeck]

trosephtroseph

164
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A robotic cricket wicket that automatically moves left/right to intercept pitched balls.
Project Owner Contributor

Automatic Moving Cricket Wicket

swaleh-owaisSwaleh Owais

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Built a little board using MCS1806 linear hall-effect current sensors, attached it to a pico to make it WIFI enabled!
Project Owner Contributor

Raspberry Pi Pico 3 Channel WIFI current meter

sciencedude1990sciencedude1990

124
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Linear Actuator with Solar Power
Project Owner Contributor

How to Control Your Linear Actuator

hayleymannn23444hayleymannn23444

110
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Solar Harvesting LIC Powered vibration monitoring solution makes uses of embedded AI models to classify vibration anomalies.
Project Owner Contributor

Vibration anomaly detection on logistics

ivan-arakistainIvan Arakistain

71
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Homegrown solder sucker
Project Owner Contributor

Solder Sucker with DIY PWM controller

urs-schmidtUrs Schmidt

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danjovic wrote 04/16/2020 at 02:01 • point

Thanks for following my #Control Freak project!

  Are you sure? yes | no

Radu Motisan wrote 11/27/2019 at 22:04 • point

thank you for following #Portable environmental monitor . Planning on building one? See my other projects too!

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Fuji Pebri wrote 11/26/2019 at 14:12 • point

Thank you for following and like my esplay micro project

  Are you sure? yes | no

Patrick Van Oosterwijck wrote 11/13/2019 at 18:33 • point

Hi John, thanks for liking by #PoE-FeatherWing project as well!

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Andy wrote 11/12/2019 at 10:11 • point

Thanks for the follow John - I like the look of your Spotlight Drone and e-Ink adapter too!  Have a good one!

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Craig Hissett wrote 11/10/2019 at 23:25 • point

Thanks for liking my #DIY SamplePad Controller buddy! :)

  Are you sure? yes | no

mras2an wrote 11/10/2019 at 12:59 • point

Hi John, Thank to like my project.

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Jan wrote 11/10/2019 at 09:41 • point

Hey John, thank you a lot for taking a look (and interest) at my projects! Yours are super interesting, too. Looking forward to updates!

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Vittorio Loschiavo wrote 11/10/2019 at 08:22 • point

Hi John, thanks for like to my project https://hackaday.io/project/165722-rain-energy-generator

  Are you sure? yes | no

roelh wrote 11/10/2019 at 08:05 • point

Hi John, thanks for liking and following #1 Square Inch TTL CPU !

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Patrick Van Oosterwijck wrote 11/10/2019 at 04:11 • point

Hi John,
Thanks for your interest in my #LiFePO4wered/Pi project! It's since been superseded by the #LiFePO4wered/Pi+, so you might be interested in following that one as well. :)

  Are you sure? yes | no

Daren Schwenke wrote 11/10/2019 at 03:40 • point

Thank you for the Likes/Follows John!  Sadly I haven't had the time to go further on most of these so #FilaMecanum will have to wait for now.  I think it will work...

It looks like you also may be interested in the #MPRT - Modified planetary robotics transmission project.  I have since found that this type of transmission is called an epicyclic planetary transmission if you want to do your own research.  The latest version of the code should generate these as proper involute gear sets without resorting to my mucking around with false gear pitch numbers..  Feel free to let me know if you need any help using them.  Cheers.

  Are you sure? yes | no

mark wrote 11/10/2019 at 02:18 • point

Thank you very much for like my project #Integrates Marlin & Octo into the RaspberryPi 

  Are you sure? yes | no

wiktor2001 wrote 11/09/2019 at 12:11 • point

Hi John, thank you for the like and following my #4DOF Robotic Arm <Copernicus> 

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Bharbour wrote 11/08/2019 at 14:41 • point

Hi John, Thanks for following my #EL Wire Clock project. Your Lumos Drone project looks like a challenging one, I am looking forward to hearing how it comes out

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Dr. Cockroach wrote 11/08/2019 at 11:15 • point

Hello John and thank you for the follow/like for #Light Logic - Diode Resistor Logic out of its cage . Love the Drone project :-)

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Richard Hogben wrote 11/07/2019 at 23:47 • point

Thanks for the like on #Making Stuff With Things 

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MagicWolfi wrote 09/17/2019 at 00:53 • point

Thanks for enjoying and following my #Watt-A-Live INA209 Power Monitor Shield Wing . Good luck with the HaD Price.

  Are you sure? yes | no

Dusan Petrovic wrote 08/30/2019 at 11:57 • point

HI John! Thank you for following my #Featured Projects list!

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