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Recent Projects

Blinkenlights and vectordot graphics from 1959
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Replica of the PDP-1: PiDP-1

oscarvOscarv

Directional ultrasonic speaker made of cheap ultrasonic transducers, capable of focusing sound into a beam
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Ultrasonic Sound Gun

nasserNasser

An isolated firmware debugging probe
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Grapple Probe

jonathan-herbstJonathan Herbst

CNC canvas painting system
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If () Then {Paint} v2

john-opsahlJohn Opsahl

On a RPi Pico W PIO offloads pressure & flow while embassy runs PID & Wi-Fi.
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oximite - rust espresso control

pchalapchala

Electronics, Physics, Math... Tricks/musings I haven't seen elsewhere.
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Random Tricks and Musings

eric-hertzEric Hertz

Simple and visual kids clock
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Kid schedule clock

goguelnikovgoguelnikov

possibly the world's first pencil plotter
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AutoGraph

john-opsahlJohn Opsahl

An artificial jellyfish on CYD (Cheap Yellow Display, ESP32).
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Denki Kurage / Electric Jellyfish

likeabloblikeablob

A MIDI controlled, self calibrating, robotic percussion instrument.
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Tongue Drum Music Robot

matthew-sylvesterMatthew Sylvester

Celebrating 50 years of Tiny Basic by implementing a custom micro-coded 16/32-bit CPU that executes it directly (up to 100MHz)
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CPU running Basic

zpekiczpekic

Circuit sculpture: a table-top satellite model that shines and measures light (and is environmentally friendly).
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A little CSK satellite for a bright workstation

andrea-consoleAndrea Console

A Raspberry Pi PICO powered Synth using CD74HC4067 Multiplexer
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Pi Synth

arnov-sharmaArnov Sharma

A relay-based adder that performs arithmetic in balanced ternary trits. It can add two numbers in the range −13 to +13 per operand.
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A Balanced Ternary Adder Built from Relays

jeroen-brinkmanJeroen Brinkman

See logic happen. This 3-bit relay adder uses diode grids and relays to show the steps of binary addition
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A 3-Bit Visual Binary Adder

jeroen-brinkmanJeroen Brinkman

TritBits shows the working of Binary coded numbers, binary 2-complement coded negative numbers and balanced ternary numbers.
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TritBits

jeroen-brinkmanJeroen Brinkman

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