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greg

wannabe hacker, too many ideas, too little time

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This user joined on 07/12/2016.

My Projects

Second generation of the NFC business card adding audible feedback

Beeping, Blinking Business-card Badge (B4)

Plans for a DIY planting bench

Planting Bench

K32L2B USB to IIC board in XIAO form factor

KUIIC

This board breaks out a USB Type-C plug to pairs of SMA connectors for each of the super speed pairs, a USB micro B connector for D+/-, and

USB Type-C Breakout Board

Qwiic GPIO expander based on PCF8574

QGPIO

A programming and communication interface for FPGAs

FPGA Helper

View all 11 projects

Projects I Contribute To

Count people entering and leaving a space through a portal with a low-cost, battery-powered, connected device

People Counter

kris-winer Kris Winer

Things I've Built

spi2sd

Arduino SPI connector to microSD card connector <a href="https://developer.mbed.org/components/SPI2SD/"; target="_blank">https://developer.mbed.org/components/SPI2SD/</a>; <a href="http://fritzing.org/projects/spi2sd"; target="_blank">http://fritzing.org/projects/spi2sd</a>;

mbd2pmd

mbed to pmod adapter board Also includes ethernet jack with magnetics, and microSD card connector. <a href="https://developer.mbed.org/components/mbd2pmd/"; target="_blank">https://developer.mbed.org/components/mbd2pmd/</a>; <a href="http://fritzing.org/projects/mbd2pmd"; target="_blank">http://fritzing.org/projects/mbd2pmd</a>;

Projects I Like & Follow

2021 Hackaday Prize

An Open Source Software Defined Oscilloscope

ThunderScope

2021 Hackaday Prize

A physical switch for my computer to choose between Linux and Windows

Hardware boot selection switch

stephen-holdaway Stephen Holdaway

Supplyframe DesignLab: 2023 Hackada…

Open-Source Infrared Remote Using ESP32 and LVGL

OMOTE - DIY Universal Remote

HDMI CEC to USB Keyboard adapter

CEC2Usb

Supplyframe DesignLab: 2023 Hackada…

Differential scope probe

PD150

Like the Adafruit Ethernet FeatherWing, but with Power over Ethernet built-in!

PoE-FeatherWing

patrick-van-oosterwijck Patrick Van Oosterwijck

Presta valve extension with built-in, no battery pressure sensor. Connect and forget. Indefinite lifetime.

No battery NFC pressure sensor for bike valves

2021 Hackaday Prize

'70s microcomputer meets '80s handheld game

Blinkencard - Pocket Altair 8800

Simplest possible way to make a compact retro-style analog oscilloscope with a cathode ray tube (CRT), which is powered by 12V.

DIY simplest small CRT Oscilloscope

mircemk mircemk

A GUI for touch screens built on Electron.js - Bootstrap for toggling GPIO enabled USB hubs on a Raspberry Pi.

RUNBOX

Cheapskate version of Adafruit Feather M0

Fluff M0

dehipu deʃhipu

Who said only electronic signals can flow through circuits? I used water instead.

Microfluidic Business Card

saren-tasciyan Saren Tasciyan

16 Audio In & 16 Audio Out using only 5 pins

Dual Interleaved CS42448 Chip

paul-stoffregen Paul Stoffregen

A RP2040 in a Zero form-factor!

Zero RP2040

wifi/ble and nfc connected business card.

dynamic nfc business card

Simple and inexpensive business card with RFID.

Wood you like my business card?

erichstyger erich.styger

It's a working title. Making a modular platform for a keyboard + PC related devices.

Keyboard Thingo

Core16 makes it easier to get started weaving your own Interactive Core Memory. You can do a lot of fun stuff with it after it is assembled!

Core16: Interactive Core Memory Made Smaller

andy-geppert Andy Geppert

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Bits

Patrick Van Oosterwijck wrote 01/05/2021 at 18:38

Hi Greg, thank you for your interest in my #PoE-FeatherWing project!

Are you sure? yes | no

Kris Winer wrote 08/18/2018 at 05:59

Thanks for following my MAX32660 Motion Co-Processor project!

Are you sure? yes | no