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John Lonergan

Busy Parent. 1980's teenage hardware hacker. Distracted by software as a means to earn living. Now making up for lost time.

United Kingdom
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8 Followers
21 Following
6 Projects
54 Likes
john-lonergan
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This user joined on 08/03/2019.

9.1k
48
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8 Bit CPU in 7400 with full Verilog simulator and toolchain
Project Owner Contributor

SPAM-1 - 8 Bit CPU

john-lonerganJohn Lonergan

1.7k
11
2
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Interactive tester and exploratory tool for logic chips
Project Owner Contributor

Integrated Circuit Tester & Exploratory Tool

john-lonerganJohn Lonergan

1.7k
6
3
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Two digit (8 bit) hex display using a PIC16F18446 microcontroller
Project Owner Contributor

Dual 7 Segment Hex Display Module

john-lonerganJohn Lonergan

81
0
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The SPAM-1 CPU needs a C compiler so I've started porting VBCC
Project Owner Contributor

VBCC Compiler - SPAM-1 Backend

john-lonerganJohn Lonergan

457
2
8
1
Handy 7 seg module that crams two DM9368N and two digits onto a single board that I can plug in on my breadboards.
Project Owner Contributor

7 Segment Display Module using DM9368N

john-lonerganJohn Lonergan

279
1
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NES Controller interface for my homebrew CPU SPAM-1 to allow playing CHIP-8 games
Project Owner Contributor

NES Controller Interface using PIC16F18446

john-lonerganJohn Lonergan

38k
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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

33.7k
146
33
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Retrocomputer built from TTL logic running CP/M with no CPU or ALU
Project Owner Contributor

Novasaur CP/M TTL Retrocomputer

alastair-hewittAlastair Hewitt

27.9k
380
25
286
8 GHz BW, up to 1 TS/s ET Sampling I have ceased active development on this project. Please don't ask.
Project Owner Contributor

8 GHz Sampling Oscilloscope

ted-yapoTed Yapo

21k
105
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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

13.3k
54
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How many TTL ICs do you actually need to output a VGA image?
Project Owner Contributor

World's Simplest TTL VGA circuit?

george-footGeorge Foot

12.7k
919
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AVR-based bootloader and IO card for RC2014 retrocomputer
Project Owner Contributor

z80ctrl

jb-langstonJ.B. Langston

10.9k
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

8.1k
2.4k
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Put your Verilog on real hardware, real cheap
Project Owner Contributor

FPGA Bootcamp #3

al-williamsAl Williams

7k
5.6k
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Neopixel watch with accelerometer.
Project Owner Contributor

Arduino Neopixel Watch

marcello-gravesMarcello Graves

6.9k
102
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Modern take on TIL311 and reimagination of #PICTIL optimized for easier production and lower part count
Project Owner Contributor

reTIL

alexAlex

6.7k
44
1
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a jumperless (solderless) breadboard
Project Owner Contributor

Jumperless

kevin-santo-cappuccioKevin Santo Cappuccio

4.3k
39
4
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This is an 8-bit CPU built using only 17 TTL chips. 32K ROM, 32K data, UART, microcoded.
Project Owner Contributor

CSCvon8: An 8-bit TTL CPU

warren-toomeyWarren Toomey

2.5k
35
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My attempt to create a CPU/MCU without transistors or relays
Project Owner Contributor

LLTP - Light Logic Transistorless Processor

dr-cockroachDr. Cockroach

2.4k
21
5
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Writing a code generator for the 8080 microprocessor for Small Device C Compiler (SDCC)
Project Owner Contributor

Targeting SDCC to the 8080

ken-yapKen Yap

2.2k
33
5
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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

1.9k
8
1
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Turning a cheap IKEA table and Chinese LED strips into a gaming device
Project Owner Contributor

IKEA Lack Game Table

ruud-van-falierRuud van Falier

1.4k
23
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I sat down and wrote a C compiler from scratch and documented every step of the journey.
Project Owner Contributor

Writing a C Compiler from Scratch

warren-toomeyWarren Toomey

1.3k
128
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An m68k homebrew with an FPGA acting as a VGA graphics controller
Project Owner Contributor

Diapason : m68k homebrew with FPGA graphics

carson-herringtonCarson Herrington

306
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An attempt at an 8-bit modified Harvard-architecture TTL computer for my senior project.
Project Owner Contributor

ATLAS CPU-8

hayden-bHayden B.

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Dr. Cockroach wrote 10/10/2020 at 09:51 • point

Hello John and thank you for the like for the #LLTP - Light Logic Transistorless Processor 

  Are you sure? yes | no

roelh wrote 07/17/2020 at 20:45 • point

Hello John, thank you for liking and following #Kobold K2 - RISC TTL Computer !

  Are you sure? yes | no

Ken Yap wrote 03/15/2020 at 11:49 • point

Thanks for liking #Targeting SDCC to the 8080 I feel guilty neglecting it for so long.

  Are you sure? yes | no

John Lonergan wrote 03/15/2020 at 12:15 • point

I'm going to want some kind of language binding at some point.

  Are you sure? yes | no

John Lonergan wrote 08/26/2019 at 00:34 • point

Of course

  Are you sure? yes | no

roelh wrote 08/25/2019 at 07:40 • point

Hi John, thanks for following #Kobold - retro TTL computer ! Liking it would be even better !

  Are you sure? yes | no

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