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Projects leumasyerrp likes and follows

19.6k
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Response to Hackaday comments section: a 555 timer in Arduino form factor
Project Owner Contributor

Trollduino V1.0

mild-lee-interestedMild Lee Interested

5.3k
45
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Newest technology in old fashion syle ;-)
Project Owner Contributor

BOBOXIE - nixie / vfd tube style desktop clock

bobriciusbobricius

8.2k
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36
A list of projects where the relays are doing some kind of processing or computing - i.e. something more than just switching a load.
Project Owner Contributor

Relay-based projects

matsengmatseng

7.2k
41
41
It is a python handheld computer with a complete keyboard and a symbolic math engine inside it.
Project Owner Contributor

Galdeano handheld computer

angel-cabelloAngel Cabello

3.9k
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A useful tool that injects small currents into your circuits, below the range of your usual lab PSU
Project Owner Contributor

Precision current generator

yann-guidon-ygdesYann Guidon / YGDES

14.5k
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<1.5µA current consumption when continuously on, optional flashing mode
Project Owner Contributor

Ultra low power LED

christoph-tackChristoph Tack

1.9k
23
21
A very useful test fixture to convert the voltage or impedance seen on its input to a variable frequency audible tone
Project Owner Contributor

Beeper Box: Analog V2F

john-guyJohn Guy

7.7k
22
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A PCB with one column per month, each has approximately thirty switches in series and one LED at the end. 367 Switches. Pure Madness.
Project Owner Contributor

Smaller Simone Giertz's Good Habit Tracker

arduino-enigmaArduino Enigma

5.6k
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CMOS Homemade Operational Amplifier module and a photo detector using it.
Project Owner Contributor

CMOS Homemade Operational Amplifier

mitsuru-yamadaMitsuru Yamada

567
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Find your way out the labyrinth without seeing it from the top
Project Owner Contributor

Blind maze

penumbrielpenumbriel

6.2k
16
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An extremely low cost universal tensile testing machine made from 3D printed and commercial materials
Project Owner Contributor

Low Cost Universal Tensile Testing Machine

xieshi-zhangXieshi Zhang

1.2k
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A simple, subtle wearable that can reinforce positive habits and track progress on stopping bad habits
Project Owner Contributor

Be Better Bracelet

darian-johnsonDarian Johnson

1.9k
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https://hackaday.com/2021/06/11/open-source-method-makes-possible-two-layer-pcbs-with-through-plating-at-home/
Project Owner Contributor

Process 01, an open source 2 layer PCB process

hydrogentimeHydrogenTime

3k
9
8
Inexpensive and functional instruments for the physics laboratory
Project Owner Contributor

DIY Simple sensitive EMF Detector and Electroscope

mircemkmircemk

3.6k
8
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A quad OpAmp Makes a Buck Regulator
Project Owner Contributor

OpAmp Buck Regulator

aaron-lagerAaron Lager

1.1k
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A one-instruction computer built from almost 700 transistors
Project Owner Contributor

My Homemade Subleq CPU

michael-mortonMichael Morton

2.7k
7
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Solar-powered creatures that react to energy with animations on a 7-segment LCD. And they blink at night!
Project Owner Contributor

LCD Solar Creatures

gaborGabor

894
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High-Voltage Serial UPDI Programmer for tinyAVR Microcontrollers
Project Owner Contributor

CH340 HV SerialUPDI Programmer

stefan-wagnerStefan Wagner

1
3
Our cats love this toy that spins a string around on a belt, but it's kind loud and drains batteries and is just begging for a pi brain.
Project Owner Contributor

Pi Pico cat string flinger toy

pP

263
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opensource calculator with full keyboard and extras gadgets
Project Owner Contributor

OtterCalc

valrianneValérianne