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Sam Ettinger

I'm interested in programmable robots, 3d printing, and goofy toys.

Los Angeles, California

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This user joined on 09/01/2016.

My Projects

a wee demo to explore a funky phenomenon: FR-4 PCB cores fluorescing under blacklight

UV Fluorescent PCB - 7 Segment Display

I still can't believe it's working.

A different kind of programmable LED

Let's use an ATtiny84A as a structural element!

A USB-C connector on a flex PCB

No knobs! No 555s! No reason whatsoever!

12 switches, 1 LED, 1 SAO

The classic Geneva Wheel mechanism, but sillier

PCB Geneva Wheel

A convenient way to do 12V programming with a USBasp or Arduino board

HVTPI tools for ATtiny4/5/9/10/20/40

View all 8 projects

Projects I Like & Follow

Desktop solder paste dispenser that works with disposable Co2 cartridges

Solderocket

We've come full circle. Here's a timer made up of timers...

555 Timer - Timer

2021 Hackaday Prize

A 24-segment retro style character display

pxlDigit_24 - retro style character display

electronic sound and light sculpture using esp32

ddrysfeöd

Is it possible to build a precise Fluorescence Imaging Device at home?

A DIY Imaging Fluorometer

A clock that flips like an acrobat

AKUROBATTO

ekaggrat singh kalsi

Reflowing PCBs with PCBs!

Open Reflow

A system that automatically stores and retrieves small plastic bins. Made with 3D-printed parts, aluminum, stepper motors and Arduino

Automated storage and retrieval system

A Vintage Coin-Operated Texas Instruments Graphing Cabinet reconstructed from the Onion article

Vintage Coin-Operated Texas Instruments Graphing C

Analysis of a RGB LED string and recreating its functionality

Powerline Controlled LED Strings

Fixing up vintage sewing machines for hobby use.

Vintage sewing machines

My attempt at a non-destructive LiPo retrofit for the unique-yet-somewhat-loathed HP 28S calculator

HP 28S LiPo Battery

Want more detailled PCB artwork on your PCBs? Try dithering!

PCB art dithering experiments

I'm working with a bird researcher in Panama to use non-invasive techniques for measuring hummingbird heartbeats

Hummingbird Heartbeats

A 9 segment hand-written font LED display based on the tube DG 1 2B

Beautiful Display

Eduardo Eduardo

We're going for it now, 612 LEDs, 51 of them controlled by a single IS31FL3733 chip

LEDodecahedron

This project is a big challenge: build a 741 opamp with discrete transistors on a PCB in DIL8 size

Discrete 741 operational amplifier in DIL8

Albert van Dalen

A cute PCB alpaca with a rainbow tail and glowing cheeks.

Alpaca ATtiny85 Dev Board

Alexandra Covor

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