# z80

Published articles for z80.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## frank-dino: a RP2350B helper chip for a real Zilog Z80

DevFeed: [frank-dino: a RP2350B helper chip for a real Zilog Z80](<https://devfeed.tech/articles/frank-dino-a-rp2350b-helper-chip-for-a-real-zilog-z80-112647.md>)

Original publisher: [Read original article](<https://blog.adafruit.com/2026/11/02/frank-dino-a-rp2350b-helper-chip-for-a-real-zilog-z80/>)

Author: Anne Barela

Published: 2026-11-02T21:07:49Z

Content type: release

Language: en

Sources: [Adafruit Industries](<https://devfeed.tech/sources/adafruit-industries-makers-hackers-artists-designers-and-engineers.md>)

Topics: [Raspberry Pi RP2350](<https://devfeed.tech/topics/raspberry-pi-rp2350.md>), [Microcontroller](<https://devfeed.tech/topics/microcontroller.md>)

Tags: [atm](<https://devfeed.tech/tags/atm.md>), [beta](<https://devfeed.tech/tags/beta.md>), [board](<https://devfeed.tech/tags/board.md>), [covers](<https://devfeed.tech/tags/covers.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [dino](<https://devfeed.tech/tags/dino.md>), [firmware](<https://devfeed.tech/tags/firmware.md>), [first](<https://devfeed.tech/tags/first.md>), [gaming](<https://devfeed.tech/tags/gaming.md>), [github](<https://devfeed.tech/tags/github.md>), [machine](<https://devfeed.tech/tags/machine.md>), [memory](<https://devfeed.tech/tags/memory.md>), [microcontroller](<https://devfeed.tech/tags/microcontroller.md>), [pico-2](<https://devfeed.tech/tags/pico-2.md>), [raspberry-pi](<https://devfeed.tech/tags/raspberry-pi.md>), [rp2350](<https://devfeed.tech/tags/rp2350.md>), [sound](<https://devfeed.tech/tags/sound.md>), [spectrum](<https://devfeed.tech/tags/spectrum.md>), [storage](<https://devfeed.tech/tags/storage.md>), [v1](<https://devfeed.tech/tags/v1.md>), [video](<https://devfeed.tech/tags/video.md>), [vintage-computing](<https://devfeed.tech/tags/vintage-computing.md>), [z80](<https://devfeed.tech/tags/z80.md>), [zilog](<https://devfeed.tech/tags/zilog.md>), [zx-spectrum](<https://devfeed.tech/tags/zx-spectrum.md>)

### AI overview

frank-dino v1.00 uses an RP2350B to provide memory, video, sound, and storage around a real Zilog Z84C00 CPU on the dino_z80 board. It supports several ZX Spectrum models and about thirty related machines, with HDMI video modes, common Spectrum sound chips, snapshots, disk interfaces, USB input devices, and cassette loading either in real time or instantly. A real cassette deck can connect to J8. To install firmware, hold S3, press S4, then copy the .uf2 file to the drive that appears; games and disk images go on a FAT32 microSD card, and ROMs are built in. The excerpt identifies the license as GPL-3.0-or-later.

### Source excerpt

rh1tech (Mikhail Matveev) has released frank-dino v1.00 on GitHub, the first firmware for the dino_z80 board. An RP2350B microcontroller acts as the whole machine around a real Zilog Z84C00 CPU, so the Z80 does the work and the RP2350B handles everything else: memory, video, sound and storage. It covers the ZX Spectrum 16K, 48K, 128K, [...]

## 2026 Retrocomputing Challenge: Explore Space with a Credit Card Reader

DevFeed: [2026 Retrocomputing Challenge: Explore Space with a Credit Card Reader](<https://devfeed.tech/articles/2026-retrocomputing-challenge-explore-space-with-a-credit-card-reader-102532.md>)

Original publisher: [Read original article](<https://hackaday.com/2026/10/27/2026-retrocomputing-challenge-explore-space-with-a-credit-card-reader/>)

Author: Tom Nardi

Published: 2026-10-27T20:00:33Z

Content type: news

Language: en

Sources: [Hackaday](<https://devfeed.tech/sources/hackaday.md>)

Topics: [Retrocomputing](<https://devfeed.tech/topics/retrocomputing.md>)

Tags: [2026-retrocomputing-challenge](<https://devfeed.tech/tags/2026-retrocomputing-challenge.md>), [contests](<https://devfeed.tech/tags/contests.md>), [credit-card](<https://devfeed.tech/tags/credit-card.md>), [gps](<https://devfeed.tech/tags/gps.md>), [guide](<https://devfeed.tech/tags/guide.md>), [interface](<https://devfeed.tech/tags/interface.md>), [magnetic-card-reader](<https://devfeed.tech/tags/magnetic-card-reader.md>), [offline](<https://devfeed.tech/tags/offline.md>), [point-of-sale](<https://devfeed.tech/tags/point-of-sale.md>), [retrocomputing](<https://devfeed.tech/tags/retrocomputing.md>), [solar](<https://devfeed.tech/tags/solar.md>), [source-code](<https://devfeed.tech/tags/source-code.md>), [telescope](<https://devfeed.tech/tags/telescope.md>), [thermal-printer](<https://devfeed.tech/tags/thermal-printer.md>), [uv](<https://devfeed.tech/tags/uv.md>), [z80](<https://devfeed.tech/tags/z80.md>)

### AI overview

A 1990s TRANZ 330 credit card reader is essentially a Z80 computer that can be repurposed as an interactive solar system guide. CharlesD used its UV erasable ROMs to load new code, mapped the hardware, and brought up the display, keypad, and serial interface. The serial connection let the reader communicate with a GPS module and thermal printer; added calculations for planetary azimuth and elevation turned it into an offline aid for telescope use. Source code was shared.

### Source excerpt

The humble credit card reader -- most of us have used hundreds, perhaps even thousands of them over the years. But even for folks like us, it's not the sort ...read more

## Littelfuse Announces Retirement of the EZ80

DevFeed: [Littelfuse Announces Retirement of the EZ80](<https://devfeed.tech/articles/littelfuse-announces-retirement-of-the-ez80-85078.md>)

Original publisher: [Read original article](<https://hackaday.com/2026/10/11/littelfuse-announces-retirement-of-the-ez80/>)

Author: Maya Posch

Published: 2026-10-11T20:00:21Z

Content type: news

Language: en

Sources: [Hackaday](<https://devfeed.tech/sources/hackaday.md>)

Topics: [Software Engineering](<https://devfeed.tech/topics/software-engineering.md>)

Tags: [end-of-life](<https://devfeed.tech/tags/end-of-life.md>), [ez80](<https://devfeed.tech/tags/ez80.md>), [manufacturing](<https://devfeed.tech/tags/manufacturing.md>), [mcu](<https://devfeed.tech/tags/mcu.md>), [microcontroller](<https://devfeed.tech/tags/microcontroller.md>), [microcontrollers](<https://devfeed.tech/tags/microcontrollers.md>), [news](<https://devfeed.tech/tags/news.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [z80](<https://devfeed.tech/tags/z80.md>), [zilog](<https://devfeed.tech/tags/zilog.md>), [zilog-ez80](<https://devfeed.tech/tags/zilog-ez80.md>)

### AI overview

Littelfuse has announced final orders for the eZ80 and other microcontroller lines it owns, with deliveries ending in 2027 as it winds down manufacturing. The article notes that open-source compatible cores and TinyTapeout silicon may keep Z80-compatible implementations available.

### Source excerpt

Although the demise of the Zilog Z80 processor has long been predicted, it would seem that this moment has finally arrived. The owner of the Zilog name - Littelfuse - ...read more