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Daniel Hajnal

I’m an electrical engineer who loves tinkering with all kinds of projects at home.

Hungary

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This user joined on 01/28/2025.

My Projects

Discover how to implement a real-time interactive terminal on any Arduino board, enabling dynamic system control and debugging

Unlock the Full Potential of Your Arduino

daniel-hajnal Daniel Hajnal

Things I've Built

Subnautica style aquarium

My brother and I are huge fans of the Subnautica games. For his birthday, I surprised him by upgrading his aquarium. It turned into a 5-microcontroller master-slave system with cameras, lights, and sensors—all remotely controllable.

Projects I Like & Follow

Hackaday Prize 2019

Convert your GameCube controller to Bluetooth for playing on the Switch, emulators and more

BlueCubeMod: Bluetooth GameCube Controller Mod Kit

Takes 3D surface scans at close range. It is simple to construct as it uses off the shelf hardware and software.

3D scanner

Released in late 2007 NAND Flash capacity was still very limited (4GB and 8GB MLC). But is it possible to replace the aging NAND Flash?

iPod Nano 3rd Gen MLC NAND Upgrade & Software Hack

hugo-melder Hugo Melder

The 2018 Hackaday Prize

diy direct-drive extruder 3D printer running Klipper firmware

protoDEV 3d printer

michal-wojciechowski Michal Wojciechowski

A computer built around a Atari 2600 (VCS), with a few nifty upgrades, 6502, 64k + 128bytes ram, coprocessor, 77 is getting a rework

Super atari 6502 (A "DIY" 2600 hardware clone...)

2021 Hackaday Prize

Yet another overkill project. An attempt at building a portable and versatile GCS for robotics.

Robotics Ground Control Station

maximiliano-palay Maximiliano Palay

The 2018 Hackaday Prize

BT audio and hands-free interface between my car radio and my smartphone

Bluetooth audio with display (and maybe OBD)

Full tutorial on how to build a conveyor belt 3D printer. I provide completely free and opensource CAD and firmware to build this printer.

Print HUGE parts with Conveyor Belt 3D Printing

swaleh-owais Swaleh Owais

How to make a small FM Radio with oled display which all functions are controlled by a single rotary encoder.

DIY Arduino Due TEA5767 FM Radio

mircemk mircemk

My 4 axis motion control rig

Motion Control Rig - 0.1.0

This boombox sounds pretty loud. 2x50 W speakers running on DIY 18650 Li-Ion battery pack salvaged from old laptop batteries. In a wine box.

100 W portable bluetooth speaker

How you can get multi-connect and remote access to USB Dongle

Donglify - Share USB Key Software

A 3D Printing desktop arm that can write and draw!!!

DARM

Here I build a external GNSS module for mobile devices without or unsatisfactory navigation GNSS option.

GNSS bluetooth module with u-blox NEO8N

2021 Hackaday Prize

Control your computer with a four-button remote control

BlueKey Remote

A hexapod robot companion, that gets tools for you and reminds you to put them back. Also cute.

Kevin - Robot Companion For Makers

christian-koschmieder Christian Koschmieder

Train your machine learning models in Google Colab and easily optimize them for hardware accelerated inference!

M.A.R.K. Custom DNN Model Training and Inference

Open Source Robotics Platform for Evolutionary Algorithm Development

ARACNA Concept

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