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roelh

I enjoy electronic design and building software

Netherlands
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54 Followers
3 Following
15 Projects
595 Likes
roelh
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This user joined on 08/11/2014.

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Retro computer built from TTL, with 6502 and Z80 instruction set. Includes video system.
Project Owner Contributor

Isetta TTL computer

roelhroelh

18.8k
1.1k
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Includes RF detector up to 6GHz and a datalogger
Project Owner Contributor

Handheld 3GHz Spectrum Analyzer

roelhroelh

16.1k
95
14
91
A microprocessor built with TTL chips. In one square inch.
Project Owner Contributor

1 Square Inch TTL CPU

roelhroelh

20.1k
105
15
83
A 16 bit RISC computer with video display, from just a few TTL and memory chips. Online C compiler and simulator available.
Project Owner Contributor

Kobold K2 - RISC TTL Computer

roelhroelh

10.6k
78
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A 16 bit computer with 20 address bits and video display, from just a few TTL and memory chips. Instructions resemble 68000 / PDP-11.
Project Owner Contributor

Kobold - retro TTL computer

roelhroelh

7.2k
74
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Scientific calculator with a brain built out of relays.
Project Owner Contributor

RISC Relay CPU

roelhroelh

View all 15 projects

36.8k
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Where DIY DIP/SSI/MSI CPU makers meet and discuss other TLA (three letters acronyms)
Project Owner Contributor

Hackaday TTLers

Yann Guidon / YGDESYann Guidon / YGDES

7.1k
39
36
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A list of projects where the relays are doing some kind of processing or computing - i.e. something more than just switching a load.
Project Owner Contributor

Relay-based projects

matsengmatseng

1.8k
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A design for a non-microcontroller / non-digital logic Conway's Game of Life cellular automata simulator
Project Owner Contributor

anaGoL - Conway's Game of Life the analog way

matsengmatseng

14.9k
50
4
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I built the 16-bit Hack computer from nand2tetris on breadboards, using mostly 74 series Logic ICs
Project Owner Contributor

The Hack computer from nand2tetris on breadboards

Tomer KronikTomer Kronik

13.8k
175
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After three years... Supercon again! And the new badge too!
Project Owner Contributor

BADGE FOR SUPERCON.6 / November 2022

Voja AntonicVoja Antonic

8.1k
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This projects tracks my efforts to develop discrete LED-Transistor logic building blocks and designing a CPU from them.
Project Owner Contributor

LCPU - A CPU in LED-Transistor-Logic (LTL)

TimTim

5.6k
37
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Creating four basic logic gates (AND, OR, NAND, NOR) from common vacuum tubes, powered at low voltages
Project Owner Contributor

Low Voltage Vacuum Tube Logic Gates

Lord of ResostersLord of Resosters

5.4k
29
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Simplified 16-bit computer using mostly 74LSxx logic
Project Owner Contributor

Simple 16-bit Computer

Charlie SmithCharlie Smith

4.1k
55
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This clock was made to watch time in an aesthetically and funny way, you will never get bored watching it
Project Owner Contributor

Arkaclock: Retro arcade Arkanoid with clock

Victor SerranoVictor Serrano

3.9k
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A replica of the PDP-10 (KA10) mainframe computer
Project Owner Contributor

PiDP-10

OscarvOscarv

3.2k
38
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A 12-bit bit-serial single-board discrete transistor computer.
Project Owner Contributor

Q2 Computer

Joe WingbermuehleJoe Wingbermuehle

2.3k
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A 16-bit TTL CPU and stack machine built out of 7400-series chips.
Project Owner Contributor

TTL Operation Module (TOM-1)

Tim RyanTim Ryan

2.2k
33
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The Baffa-1 is an 8-bit CPU created from scratch using 74 series logic gates and built using custom printed circuit boards.
Project Owner Contributor

Baffa-1 Homebrew CPU Minicomputer

Augusto BaffaAugusto Baffa

2.2k
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Experimental project to break the 100MHz “sound barrier” on a TTL CPU
Project Owner Contributor

100MHz TTL 6502

DrassDrass

2k
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The DM-02 is an 8-bit computer built (almost) entirely out of 7400-series (TTL) logic chips.
Project Owner Contributor

DM-02 8-bit Computer

Ruud van FalierRuud van Falier

1.5k
27
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Digital Information Processor - an 8-bit computer made out of 7400 series logic and some EEPROMs.
Project Owner Contributor

DIP-8 TTL Computer

Kyle McInnesKyle McInnes

1.3k
12
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A Retrobrew TTL CPU - Classic yet Baroque
Project Owner Contributor

ONAN 1111

Nicolas REIMENNicolas REIMEN

1.1k
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Goal of the project is to develop and build a homebrew 16 bit relay computer
Project Owner Contributor

Homebrew 16 bit relay computer

PeterPeter

853
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A retro-style FPGA-based microcomputer. The microcomputer serves as a platform for software and RTL experimentation.
Project Owner Contributor

BoxLambda

EpsilonEpsilon

727
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Developing a more flexible pointer and structure format that keeps some POSIX compatibility without the hassles
Project Owner Contributor

Aligned Strings format

Yann Guidon / YGDESYann Guidon / YGDES

547
8
1
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A running hardware implementation of the AGC, block II using TTL chips.
Project Owner Contributor

Apollo Guidance Computer

wglasfordwglasford

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Drass wrote 09/12/2020 at 15:38 • point

Thanks for the like on #100MHz TTL 6502 Roelh. Love the 1x1 TTL CPU you built! :) Cheers,

  Are you sure? yes | no

Ced wrote 01/22/2020 at 07:55 • point

Hi Roelh. Thanks for following the #Nits Processor  !

  Are you sure? yes | no

Dusan Petrovic wrote 04/15/2019 at 10:45 • point

Good day Roelh, thank you for following my #Homebrew CPU list!

  Are you sure? yes | no

Ted Yapo wrote 03/01/2019 at 17:33 • point

Hey! thanks for the skull on #Tiny TDR 

  Are you sure? yes | no

Morning.Star wrote 11/25/2018 at 07:41 • point

Hey Roelh :-) Thanks for the like and follow on #Pandelphi , I put a lot of thought and effort into it for what it was - is. It isnt destroyed, it sits there until I can bring myself to work on it again.

Things have moved on and changed, the circumstances surrounding me are unpredictable but I might come back to robotics one day... :-)

  Are you sure? yes | no

Dr. Cockroach wrote 10/10/2018 at 16:31 • point

Good afternoon roelh and thanks for the follow / like for #Light Logic  :-)

  Are you sure? yes | no

Marcel van Kervinck wrote 09/23/2018 at 19:37 • point

Thank you for liking the Gigatron https://hackaday.io/project/20781-gigatron-ttl-microcomputer. I see you have a 1x1 inch TTL computer brewing besides your relay computer project. Which makes me contemplate a 1x1 inch relay computer :-)

  Are you sure? yes | no

Dr. Cockroach wrote 08/17/2018 at 07:46 • point

Good morning roelh and also thank you for liking #The Cardboard Computer - IO is my name   IO needs a new ALU and you are giving me ideas, thanks :-)

  Are you sure? yes | no

Shebin Jose Jacob wrote 04/12/2018 at 09:55 • point

Thanks for liking and following #SIGN LANGUAGE TRANSLATOR :)

  Are you sure? yes | no

Dr. Cockroach wrote 03/31/2018 at 08:15 • point

Thank you for the follow and like of #Cardboard Relay - Uglytech is getting better :-)

  Are you sure? yes | no

Radu Motisan wrote 07/15/2016 at 12:53 • point

Thanks for following the uRADMonitor project. If you want to support the development (but also help with the Igg campaign), you can purchase one of the available detectors on https://www.indiegogo.com/projects/uradmonitor , the solderable KIT1 for instance was very well received by the Makers community, and there is also an ongoing competition on http://www.uradmonitor.com/topic/soldering-the-kit1/ . Thanks again, Radu

  Are you sure? yes | no

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