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74 projects
524
4
7
What happens when you replace the resistor and capacitor of an RC sawtooth oscillator with a reverse biased LED?
Project Owner Contributor

Cadmium-free Light Sensitive Sawtooth Oscillator

bornachbornach

116
13
12
running Windows 9x/NT on MCU such as ESP32-S3
Project Owner Contributor

tiny386

hchunhuihchunhui

241
0
0
Design and build of a low capacitance isolated gate driver supply for SiC FETs.
Project Owner Contributor

Isolated Gate driver supply

stephenStephen

1.4k
9
13
This project re-purposes a cable as a voltage boosting device
Project Owner Contributor

Boosting voltage with a cable

craig-dCraig D

353
1
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* No magic here. But I show that LEDs light up from tiny currents induced by electric fields around us, with no further electronics needed.
Project Owner Contributor

LEDs light up without power or electronics!*

joekutzjoekutz

99
3
8
ESC{21} conference badge made with clear PET and loaded with LEDs
Project Owner Contributor

Fully Transparent Folded Cube Badge

jacopopsjacopops

467
1
1
Abusing BJT B-E junctions as zeners
Project Owner Contributor

Ersatz zeners

ken-yapKen Yap

109
1
3
Mistreating an LM3909 and a 7473 to test diodes - a recreation of a 40 year old device.
Project Owner Contributor

The IC abusing diode tester

joseph-eoffJoseph Eoff

152
2
3
Using base-emitter junction on NPN BJT transistor instead of NTC
Project Owner Contributor

Transistor instead of thermosensor? Sure!

aleksei-tertychnyiAleksei Tertychnyi

366
5
2
Using standard 4000 series ICs to build ternary circuits
Project Owner Contributor

Ternary abuse of CMOS logic

shaosSHAOS

192
171
0
Morse Master is a Morse Code translator device in which we can input Morse code using a web application or manually via a push button.
Project Owner Contributor

Morse Master

arnov-sharmaArnov Sharma

2.8k
14
11
Creating Electronic Dice with the least number of components in the most obscure technologies
Project Owner Contributor

Circuit Golf: Electronic Dice Edition

timTim

297
2
2
I have hacked a lcd display of a digital wrist watch.
Project Owner Contributor

Hack Wrist Watch LCD With Arduino || D-type LCD ||

vishal-sonivishal soni

172
3
2
Can be a cheap webcam used as a decent thermal imagery? What we need? cryogenic temperatures? averaging neighbor pixels or long exposures?
Project Owner Contributor

Webcam as thermal imaging

fvfilippettifvfilippetti

148
2
2
How to capture Gameboy Advance display signals using a 1.5 USD general purpose MCU and output it via USB Video Class (UVC)
Project Owner Contributor

Gameboy Advance 2 USB (GBA2USB)

tobiTobi

1
4
Data transmission using an LED as a photodiode
Project Owner Contributor

Better Than Bluetooth

nickNick

0
0
The old adage goes, 'if it's stupid, but it works, then it's not stupid.'
Project Owner Contributor

Cheap and Dirty 5-volt Supply

mike-coatsMike Coats

642
1
3
Can I have it because I need a H-bridge motor driver
Project Owner Contributor

Is that a 74ACT139 in your pocket?

bramBram

4.9k
18
22
Rogowski coil current sensor using cheap shunt regulators as opamps.
Project Owner Contributor

TL431 rogowski coil current sensor

stephenStephen

1
0
Hint: You likely have one in your spare parts bin
Project Owner Contributor

Need an Electrical Slip Ring?

luke-j-barkerLuke J. Barker

92
3
4
An alternating flasher that runs out slowly, controlled by the dielectric absorption of capacitors.
Project Owner Contributor

The run-out flasher

bkainkab.kainka

164
1
1
OrbitClock blends futuristic design with IoT tech. It shows real-time NTP time and environmental data in a sleek satellite-style form.
Project Owner Contributor

OrbitClock – a Tiny Space IoT Environmental Clock

next-builderNext Builder

1.7k
17
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Measurement of wind speed and direction through two load cells.
Project Owner Contributor

Load Cell Wind Anenometer

blanchard-jordanBLANCHARD Jordan

163
2
1
This is a Digital sprit level tool is an instrument designed to indicate whether a surface is horizontal.
Project Owner Contributor

Planum - a Digital Spirit Level Tool

vishal-sonivishal soni

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