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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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152 Followers
181 Following
17 Projects
960 Likes
john-loeffler
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This user joined on 04/25/2015.

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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

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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

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

Flea-Scope USB Oscilloscope ($18, 18 Msps, WebUSB)

richard-testardiRichard Testardi

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World's Smallest RP2040 Development Board
Project Owner Contributor

RPDot

william-herrWilliam Herr

6.7k
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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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4
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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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A Business Card Sized Particle Detector
Project Owner Contributor

BetaBoard - Tiny Particle Physics Lab

tim-dj8tkTim - DJ8TK

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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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A simple radiation monitoring solution powered by the SBM-20 GM tube and TTGO ESP32 microcontroller.
Project Owner Contributor

OpenRad: A Geiger Counter using SBM-20 and ESP32

omar-khorshidOmar Khorshid

1.7k
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Ferrofluid dances to the music with this analog VU-Meter
Project Owner Contributor

Ferrofluid VU-Meter

rmi-berthozRémi Berthoz

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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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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

201
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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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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

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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

118
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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

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The tracks "float" in this model to transfer a marble from the end to the start of the tracks.
Project Owner Contributor

Marblevator, Floating Tracks.

greg-zumwaltGreg Zumwalt

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Bits

Anders Nielsen wrote 09/01/2023 at 09:58 • point

Thank you for liking and following my #Relatively Universal ROM Programmer  - hopefully I'll have a prototype ready soon! :) 

  Are you sure? yes | no

Dixbit wrote 08/27/2023 at 14:00 • point

Hi @John Loeffler! Thank you for liking my #Modular Handheld Retro Computer project :)

  Are you sure? yes | no

Michael Gardi wrote 08/06/2023 at 03:40 • point

Thank you John for your interest in my TMD-3: Turing Machine Demonstrator Mark 3 project. 

  Are you sure? yes | no

Mitsuru Yamada wrote 08/01/2023 at 23:56 • point

Thank you for liking and following my #Homemade Floating Point Interpreter for 6502! Yesterday, I updated the source list in the article and added a description of loading application programs.

  Are you sure? yes | no

Ken Yap wrote 07/30/2023 at 15:31 • point

Thanks for liking #Ternary clock . I've given up on the wood board mount idea and instead have stacked the boards like a sandwich. Now I need to find a suitable plastic box. It's still palpably harder to read compared to a binary clock.

  Are you sure? yes | no

Craig Hissett wrote 05/25/2023 at 23:36 • point

Thanks for liking my #Lattepanda 3 Delta Recording Rig buddy!

  Are you sure? yes | no

uk4dshouse wrote 05/02/2023 at 15:23 • point

Thanks for liking and following inductive_dice

  Are you sure? yes | no

Bharbour wrote 04/20/2023 at 23:59 • point

Thanks for Liking and following my projects

  Are you sure? yes | no

JP Gleyzes wrote 04/14/2023 at 11:17 • point

Thanks for following my project #Rezodo: irrigation system and weather station 

  Are you sure? yes | no

roelh wrote 04/11/2023 at 18:03 • point

Hi John, thanks for following the #Isetta TTL computer !

  Are you sure? yes | no

yOyOeK1 wrote 04/11/2023 at 11:25 • point

THX for fallowing my project OiyshTerminal. 

I see you have a nice toy's collection :) If you need any help or have questions to OT I'm happy to help and test it on "out of my box" scenarios.

  Are you sure? yes | no

Dennis wrote 04/11/2023 at 00:50 • point

Hi! Thanks for liking and following Build Your Own Voice Control Module.

  Are you sure? yes | no

Michael Gardi wrote 04/10/2023 at 22:09 • point

Thanks for your interest in my OSI Challenger 4P Reproduction project John.

  Are you sure? yes | no

Nuri Erginer wrote 06/17/2021 at 07:13 • point

Thanks for following #PnPAssist 

  Are you sure? yes | no

ElecLab wrote 06/08/2021 at 02:55 • point

Hello !

Thank uou for following my projet :https://hackaday.io/project/179726-eleclab-f1c200s100s-linux-board

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ekaggrat singh kalsi wrote 01/07/2021 at 05:16 • point

thanks for liking #GETULA . your projects are just amazing. specially the openlev! 

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dannyvandenheuvel wrote 07/22/2020 at 20:55 • point

Thanks for following and liking my project #DP Ventilator 

  Are you sure? yes | no

danjovic wrote 07/11/2020 at 13:17 • point

Hey John, thanks for liking and for following both #Megadrive PC  and #TankServer !

  Are you sure? yes | no

Ken Yap wrote 07/09/2020 at 01:22 • point

Thanks for liking #8085 SBC

  Are you sure? yes | no

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