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Using an Arduino and Python script for testing simple logic I.C.s like 74xx TTL

Arduino and Python script for testing simple logic I.C.s

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7
A serial interface for the FACIT 4070 tape punch with only a DTL-level parallel interface.

Serial Interface for a paper tape punch

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6
BeagleBone Black proto cape

213

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7
The vintage Epson PX-4 and PX-8 computers have small LCD screens, with low contrast. This device fixes that problem.

Re-UD-80 - a larger display for Epson PX-4 / PX-8

325

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7
The T.I. TMS7000 line of micro controllers is an interesting architecture. These boards will provide a new platform to explore it.

TMS70C02 single board computer in two parts

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A PAL-compatible display for the Microprofessor MPF-IB and MFP-IPlus

Remake VIDEO-MPF-I

244

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7
Relaxing bird song in your WC/toilet/restroom. Different every time you switch on the light. Mains powered, eliminating battery charges.

Automatic WC bird song player

241

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8
Punched paper tape can be decorative, so this script can create PDFs full of them.

Punch tape patterns to PDF Gallery

249

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8
There are multiple ways to add floppy-sized storage to the Epson PX-8 or PX-4 computers. PFBDK offers a cheap, easy D.I.Y. solution.

PFBDK - EPSP floppy drive emulator

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Many vintage computers use a keyboard matrix for input. This solution replaces a missing keyboard with a cheap PS/2 keyboard.

PS/2 keyboard to keyboard matrix

231

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8
Write to Z80 memory without any special feature on board or firmware

Z80 CPU Bus Access

392

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8
A compact diagnosic tool between DVM and scope

Counting Logic Probe

536

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8

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