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Projects Alvaro Barcellos likes and follows

4.1k
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A Decentralized Communication Device for Emergency Situations
Project Owner Contributor

CyberMesh LoRaChat

yakroo108Yakroo108

5.1k
24
42
Slowing down a ring oscillator enough to make it tick seconds
Project Owner Contributor

One hertz sculpture

pierre-loup-mPierre-Loup M.

2.7k
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An open-source, fully 3D-printable rover platform featuring NASA-style Rocker-Bogie suspension, powered by ESP32
Project Owner Contributor

Papaya Pathfinder: Open Source ESP32 Rover

sergio-garca-snchezSergio García Sánchez

771
14
11
Another implementation of Roger Chen's Servo Actuated Wheels, Printed Interconnect For Extrusion (Sawppy) Rover
Project Owner Contributor

TRIPPY - a Sawppy Variant

knickelsknickels

6k
11
17
This project re-purposes a cable as a voltage boosting device
Project Owner Contributor

Boosting voltage with a cable

craig-dCraig D

408
10
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Open-source ROS2 quadruped robot on Pi 5. CHAMP framework + PCA9685 servos + Nintendo Pro Controller. Educational walking bot!
Project Owner Contributor

TrotBot: ROS2 Quadruped Robot Platform

vipin-mVipin M

989
9
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"Abusing" low cost Analog Switches for Digital Logic.
Project Owner Contributor

Analog Multiplexer Logic

timTim

3.9k
8
7
A coffee table that draws pretty patterns in sand using a corexy mechanism to move a magnet
Project Owner Contributor

Arrakis 3.0 Coffee (Sand) Table

mark-rehorstMark Rehorst

1.7k
8
13
A one-instruction computer built from almost 700 transistors
Project Owner Contributor

My Homemade Subleq CPU

michael-mortonMichael Morton

880
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4
For driving Cockroft Walton Multiplier I use stable high voltage source which I made with minimal modification of the old PC power supply
Project Owner Contributor

330,000 volts from modified PC Power Supply

mircemkmircemk

2.3k
6
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Use your microcontroller internal IO pull-ups as base resistors and use input-only pins as outputs
Project Owner Contributor

Pull-up hacking

scart-vaderSCART VADER

2.3k
5
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The circuit is very simple: an ultra-bright green LED, two 10-ΜΩ resistors, two 100-nF ceramic capacitors and a push-button switch. When you
Project Owner Contributor

A Self-Charging LED Flasher By Burkhard Kainka

titoTito

1.6k
5
2
Using standard 4000 series ICs to build ternary circuits
Project Owner Contributor

Ternary abuse of CMOS logic

shaosSHAOS

1k
4
4
a handwired stenotype keyboard using a Pro Micro (ATmega32U4). open-source, compact, and 3D printed for simplicity.
Project Owner Contributor

Handwired Steno Keyboard

manbirmanbir

498
4
2
Yet another project trying to generate VGA signals using small avr mcu.
Project Owner Contributor

VGA with Arduino

pavelPavel

488
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Focus on discussions and sharing about Robot-Wall making or other DIY projects.
Project Owner Contributor

Robot-Wall

bunn-wuBunn Wu

686
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Surprisingly good 1 bit PCM audio at an absurdly low samplerate. 1 Bit audio not at millions, but as little as 15,926 samples a second!
Project Owner Contributor

Abusing a 6522 VIA serial port for PCM Audio

normall-userNormalL User

106
2
1
A retro 6502 with __LOTS__ of Blinkin' Lights and a variable clock that slows down enough to see what's actually happening
Project Owner Contributor

Retro 6502 Computer Variable Clock

casey-brallaCasey Bralla

2.3k
2
4
* 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

244
1
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TIGER is a platform for Engineering Students at Trinity University to use as a substrate/launch point for designs.
Project Owner Contributor

Trinity Intelligent Ground Exploration Rover

knickelsknickels

210
1
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Homebrew amateur radio antenna for Summits on the Air
Project Owner Contributor

20 Meter Inverted V Dipole

dustyDusty

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