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Projects John Loeffler likes and follows

503
322
4
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

17.1k
108
93
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

10.4k
101
78
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

creapunkcreapunk

7.3k
57
57
A Business Card Sized Particle Detector
Project Owner Contributor

BetaBoard - Tiny Particle Physics Lab

tim-dj8tkTim - DJ8TK

2.3k
48
7
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

9k
42
53
World's Smallest RP2040 Development Board
Project Owner Contributor

RPDot

william-herrWilliam Herr

3.8k
33
31
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

10.3k
29
31
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

2k
23
22
Ferrofluid dances to the music with this analog VU-Meter
Project Owner Contributor

Ferrofluid VU-Meter

rmi-berthozRémi Berthoz

6.5k
20
30
An input device to enter any Unicode character over USB, in style
Project Owner Contributor

Unicode Binary Input Terminal

stephen-holdawayStephen Holdaway

647
19
17
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

1.7k
18
23
Portable Variable Power Supply
Project Owner Contributor

CH32X035 USB PD Adapter

stefan-wagnerStefan Wagner

763
5
5
kinetic sound and light sculpture
Project Owner Contributor

intermittent luminal phase

eirik-brandalEirik Brandal

278
4
4
snackster laptop
Project Owner Contributor

sudo make me a sandwich [cyberdeck]

trosephtroseph

162
2
2
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

442
2
2
A robotic cricket wicket that automatically moves left/right to intercept pitched balls.
Project Owner Contributor

Automatic Moving Cricket Wicket

swaleh-owaisSwaleh Owais

349
2
1
Linear Actuator with Solar Power
Project Owner Contributor

How to Control Your Linear Actuator

hayleymannn23444hayleymannn23444

370
1
2
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

99
1
2
Homegrown solder sucker
Project Owner Contributor

Solder Sucker with DIY PWM controller

zenvegaZenVega

144
1
1
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

675
1
1
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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