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Christian Holzapfel

I'm a software and electronics engineer with my project focused on refurbishing, modding and retrofitting vintage hardware.

Hamburg, Germany

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This user joined on 12/06/2018.

Projects I Like & Follow

The 2018 Hackaday Prize

This is a fast, heavy-duty Pulse Engine derived from my Commercial grade desulfator. Up to 80% battery yields overnight.

Battery Desulfator Kit, TESLA 12V compatible

The 2018 Hackaday Prize

This open-source, low-power LTE shield uses cutting-edge CAT-M technology and also integrates GNSS location capabilities!

LTE CAT-M1/NB-IoT Shield for Arduino

timothy-woo Timothy Woo

It's a dumb terminal. You can connect a Raspberry Pi to it.

VT-69 Handheld Terminal

The 2018 Hackaday Prize

Publys is an open source platform for the study and processing of bioelectric signals.

Publys: An open source biosensing board

The goal of this project is to create an Open-Source-Debugger for AVRs via Debug Wire.

DebugWire Debugger

I am building a computer featuring a 16-bit RISC CPU made of discrete transistors for learning, fun and art. It will be pretty large.

The Spikeputor

The 2018 Hackaday Prize

A modular smart speaker designed with localized speech recognition, customization and security in mind.

Modular Smart Speaker Assistant (jarvis-pi)

chris-jones Chris Jones

This is an 8088 homebrew computer I'm building on a breadboard, with a simple command line.

8088 Homebrew Computer

The 2017 Hackaday Prize

Datalogger WIFI and Bluetooth for the IOT product

IOT Datalogger

reginald-sourn Reginald Sourn

The 2018 Hackaday Prize

This wallet can connect the internet, read the value of your cryptocurrencies from a Google spreadsheet and even work as a pedometer!

IOT WALLET (smart Wallet with Firebeetle ESP32)

The 2018 Hackaday Prize

Yet another HP bubble clock, using ATTiny84A.

HP Bubble clock

jeremy-g Jeremy g.

The 2018 Hackaday Prize

Another Arduino UNO compatible board. It is not another cloned board, we removed a part of it, added more features, perfect for education

Arduino UNO for Education

A raspberry pi camera running on batteries, which takes photos, HDRs, panoramas, timelapses and more.

Yet another raspberry picam

Home made clock with custom designed LED matrix display

LED matrix clock

jakub-lank Jakub Laník

Step-by-step instructions on running Plex Media Server on Raspberry Pi or any other ARM

Plex Media Server on Raspberry Pi or anyother ARM

SW framework for making event driven programs and Remote Procedure Calls for AVRs micro controllers, single or in a network.

Event based programming+RPC for AVR

claudio-g-hutte Claudio G. Hutte

A terrible transmitter made just for kicks

AM Radio Transmitter #5

grant-giesbrecht Grant Giesbrecht

A funding platform for software development projects, startups, and internet non profits - Powered by Monero

Crypto Crowd Funding

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