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Projects spudfishScott likes and follows

1.3k
1.4k
3
A site-area paging system with an Internet-facing front end.
Project Owner Contributor

The Wireless Badger

trystTryst

1.4k
832
31
A 1960s-style mini (decreasingly) reminiscent of the PDP-8 scratch-built out of 74xxx logic, including software.
Project Owner Contributor

CFT 16-bit Mini-Computer

alexios-cAlexios C

2.3k
830
25
A modern MCU-based hardware replacement for the venerable TMC1501 used in the Texas Instruments TI-57 LED calculator.
Project Owner Contributor

TI-57 Programmable Calculator Hardware Retrofit

tomcircuittomcircuit

27k
128
165
a clock which rewrites time again and again
Project Owner Contributor

Sequino

ekaggrat-singh-kalsiekaggrat singh kalsi

23.9k
109
85
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

12.5k
97
69
A home-brew 8 bit Microprocessor built on a breadboard 64K Address Space, IRQ, and DMA 16 Bit Stack Pointer, 4 8 bit Registers or 2 16 bit
Project Owner Contributor

8 Bit Breadboard CPU

2-zons2-Zons

10.3k
84
79
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

11.7k
81
87
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

13.8k
64
57
A 16-bit (and a 32bit) FPGA CPU I call Lion CPU and a computer, the Lion computer. Everything built from scratch.
Project Owner Contributor

Lion FPGA CPU/Computer

leonLeon

4.3k
44
47
A clock controlled by a ESP8266, which shows the time and functions as a stopwatch.
Project Owner Contributor

Big 7 segment display

guilleGuille

4.1k
32
28
Adding four SPI ports and up to 128K of banked RAM using nothing more than 4 TTL chips and some wizardry.
Project Owner Contributor

Gigatron I/O and RAM expander

marcel-van-kervinckMarcel van Kervinck

2k
28
21
Electronic Dynamic Storage Breadboard Computer
Project Owner Contributor

BREDSAC

gregewinggreg.ewing

2.8k
25
24
Safe and convenient power for HP 35/45/55/67 Calculators
Project Owner Contributor

Classic HP Calculator LiPo Battery Pack

tomcircuittomcircuit

2.6k
23
24
Prototyping some processor functions using logical gates made of discrete transistors, resistors and diodes
Project Owner Contributor

Simple ALU from discrete components

pavelPavel

4.4k
20
19
A modern replacement for the TI-58/59 Calculator BP1
Project Owner Contributor

TI-59 LiPo Battery Pack

tomcircuittomcircuit

2.9k
16
16
A breadboard friendly 4-bit full hex decode board based on GAL16V8 chip.
Project Owner Contributor

4-Bit Full Hex Decoder

daves-dev-labDave's Dev Lab

2.8k
15
20
Only 2 relays and a few diodes, but 10 functions including ADD and Shift Right. Simplest relay ALU ever designed ?
Project Owner Contributor

Simple Relay ALU

roelhroelh

2k
9
8
My attempt at a non-destructive LiPo retrofit for the unique-yet-somewhat-loathed HP 28S calculator
Project Owner Contributor

HP 28S LiPo Battery

tomcircuittomcircuit

545
8
6
Yep, another one! But this time with more modern devices, fewer parts, and a smaller form-factor
Project Owner Contributor

HD6309 Singleboard Computer II

tomcircuittomcircuit

1.3k
7
8
This clock has no microcontroller, but a TTL CPU built on 1 square inch
Project Owner Contributor

Clock driven by small homebrew CPU

roelhroelh

302
2
4
A simple JTAG test board for 84pin PLCC MAX7000S CPLD
Project Owner Contributor

MAX7000S CPLD JTAG Tester

tomcircuittomcircuit

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