iiinova — where your digital self keeps evolving

Retro Theory @retrotheory.bsky.social · 07/05/2026

Pico-mac with audio has been published github.com/retrotheory/... This is for Pico 2, not tested on Pico 1. PWM or DAC based audio configure at build time. Includes work on the submodule github.com/retrotheory/... ,updated for 464K support and patched audio addressing.

Common DAC, can add crystal clear audio to pico-mac

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Retro Theory @retrotheory.bsky.social · 03/05/2026

Tetris on Picomac Pico2 464K with audio, sorry about the noise, I have no filtering at in circuit

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Retro Theory @retrotheory.bsky.social · 03/05/2026

PicoMac Pico2 / 464K with Audio Patched the ROM too override of memory size, and skip memory test. Audio Output is 8bit PWM at 22,254 Hz, One sample per scanline, 3-bit volume control (0-7) via VIA Port A bits 0-2 With 464K I had to do shenanigans to get sound buffer in 'right place'

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Retro Theory @retrotheory.bsky.social · 01/05/2026

Not a CRT expert at all, but looks like fold-over due to incorrect B+ voltage. Cause this myself kinda similar, but not as severe

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Retro Theory @retrotheory.bsky.social · 04/04/2026

Setting of BigMaclock in After Dark

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Retro Theory @retrotheory.bsky.social · 04/04/2026

Ok, I have brought BigMaclock to After Dark screensaver github.com/retrotheory/... Thanks @paulrickards.bsky.social for the AD idea and thanks @kalleboo.bsky.social for pointer on what I was doing wrong. Now with Inversion Timer (phosphor protection) Thanks for idea @thetechknight.bsky.social

Mac Plus running After Dark, with the BigMaclock screen saver module

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Reposted by Retro Theory

Karl Baron @kalleboo.bitbang.social.ap.brid.gy · 01/04/2026

And here it is, the #MARCHintosh #GlobalTalk Canvas timelapse. Thank you to everyone who participated, it was lots of fun to host!

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Retro Theory @retrotheory.bsky.social · 31/03/2026

Failing hard at this, trying to convert my BigMaclock to screensaver module for After Dark and I cannot get it to animate/update , so it just shows the static time. I think I'm right setting Cals 1 resource to 0x0f , but I think AD is catching quickdraw updates , need to find more info

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Reposted by Retro Theory

K-man @kman-aus.bsky.social · 13/03/2026

Reviving a sad Macintosh Plus for #MARCHintosh and its 40th. Playing games, exploring drives, letting it moonlight as a big Maclock, and hopping online with a BlueSCSI. Watch - youtu.be/qFYbTqF4pmM

A sad Mac icon with error code 01001C overlayed on an image of a Macintosh Plus setup with keyboard, mouse, external hard drive and FloppyEmu. The Mac has a smiley face. Off to the sides you see soldering gear and an EPROM programmer.

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Retro Theory @retrotheory.bsky.social · 23/03/2026

Since Jan this year, I turned sharepoint off at all levels in/out for all my clients. If you know you know. But yes, I think you have a greater evil there.

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Retro Theory @retrotheory.bsky.social · 23/03/2026

I used to think this, but now its Outlook. Outlook is my manifestation of evil.

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Retro Theory @retrotheory.bsky.social · 19/03/2026

Curious about the PicoRC, are you backfeeding the 12V to power the CRT too? So no mains input to the analog board?

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Retro Theory @retrotheory.bsky.social · 18/03/2026

It's a program I'm working on that is loosely based on FluxGarage/RoboEyes, I'm still working on it, but will release it soon

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Reposted by Retro Theory

vlado @mejs.eurosky.social · 17/03/2026

I love to check the time on my SE/30, courtesy of @retrotheory.bsky.social's BigMaclock 😎 github.com/retrotheory/... #marchintosh

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Retro Theory @retrotheory.bsky.social · 16/03/2026

Sometimes my Macs just wont Appletalk to each other. SE/30 gets quite cross with its older sibling. #MARCHintosh

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Reposted by Retro Theory

nulleric @eric.scsi.blue · 15/03/2026

Mac DOOM on an SE/30 tinkerdifferent.com/threads/rele... cc: @actionretro.bsky.social #MARCHintosh

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Retro Theory @retrotheory.bsky.social · 12/03/2026

Another #MARCHintosh project, a serial digital multimeter logger , in this case a UT61E. Its very work in progress and tough work for the 68000 of the Macintosh Plus.

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Retro Theory @retrotheory.bsky.social · 04/03/2026

More on what @mac84.bsky.social suggested, temp being a weather symbol. Making a weather symbol in 5x7 'pixels' is kinda meh. So I though make it the same width as the DAY, so 18x11. It needs some work , not bad for first pass. At the moment , its click to change. And saves to prefs.

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Retro Theory @retrotheory.bsky.social · 04/03/2026

Its just a fixed variable. 😜 All for show lol

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Retro Theory @retrotheory.bsky.social · 04/03/2026

nice picture, thanks for posting 👍

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Retro Theory @retrotheory.bsky.social · 04/03/2026

It may run under 9, I haven't tested it, but it's worth a shot

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Retro Theory @retrotheory.bsky.social · 02/03/2026

Just throwing this out there , would you not have the soldering along side the sanding and a common extraction / filter setup ?

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Retro Theory @retrotheory.bsky.social · 02/03/2026

Nice idea. Yea, I have a list of updates, and that shouldn't be a problem. A dropdown in preferences to pick weather or click on weather to cycle it to next one.

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Retro Theory @retrotheory.bsky.social · 01/03/2026

Give github.com/retrotheory/... BigMaclock a try, It supports dynamic pixel sizing so you can run it on a larger screen. #MARCHintosh

Date and time on an AmberCRT Macintosh, it gives a warm glow

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Retro Theory @retrotheory.bsky.social · 01/03/2026

Use the "SetClock" Utility from Macintosh Garden, or use year offset to fix incorrect DAY , 1998 seems to work for this.

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Retro Theory @retrotheory.bsky.social · 01/03/2026

Preferences and about page on BigMaclock.

Preferences page of BigMaclock, alarm set, sound selection, Day Month order, invert , AM/PM and grey background option

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Retro Theory @retrotheory.bsky.social · 01/03/2026

Instead of turning a clock into a vintage Mac, I turned a vintage Mac into a clock!, I though it would be fun given its #MARCHintosh The program can be downloaded here: github.com/retrotheory/... It supports US/EU month day order AM/PM, Invert display, 'grey' background and alarm function

Vintage Macs running an application that bears a strong likeness to a tiny Macintosh clock

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Retro Theory @retrotheory.bsky.social · 11/02/2026

At 40 years old, this Macintosh Plus is officially living its best life: no social media, no notifications, and zero concept of "The Cloud"—just a physical box of floppies and dreams