THE WACKY TRANSISTOR

Welcome to my Weird Space. Engineering, Other Stuff, Making Things [ MasterPost ] [ WareHouse ] [ MineShaft ]

[wired-weirdness]

Project Tricorder(ish)

One of life’s fascinations for me has always been the Star Trek tricorder. In the show it’s a handheld device that has three functions computing, sensing, and recording.

For a proof of concept I got off-the-self modules and stuffed them together. The UI I took a color palette from a vintage terminal and applied the colors as a theme. The mouse is a little caterpillar 🐛. I can’t find a good font.

Connection wise I’m working to connect to a past project ButtonTop to control the power supply and view IO.

This may never become as cool as a tricorder but I’m hoping for a final device one day. It would be amazing for a Game boy format with a touchscreen and all the sensors I can stuff in.

[thevaultoftheatomicspaceage]

[wired-weirdness]

*proceeds to steal your coffee and perhaps your mouse*

[pngblog]

[ui-alcoholic]

PolType/Cyfronex

Polish PolType is a family of microcomputer systems developed by Polish engineers in close cooperation with the Polish representative of the British MonoType company (PolType was acquired by the Cyfronex company in 1986, but the original developers remained with the company).

PolType devices were able to control LaserComp and MonoType Imagesetter machines (Imagesetter produces the printing film from which the printing plate is made – nowadays the plate is made directly, and the film is not needed).

The first generation of Poltype (1988) required its own eight-bit computer, the next, Poltype 03 and 04, used a PC XT class computer.

The 510-key POLSET 04 keyboard (for PolType 04) shown in the first two pictures was also Cyronex's own development. This was also excellent for typing complex mathematical formulas, but through it, the functions of the SW were also available (the mouse and WYSIWYG were still in a very experimental stage at that time)

source:

• Tumbler // sailing the cylindrical sea

• Mikro Klan 1988/1

• Bajtek 1988/5

[fuzzyghost]

[foone]

Is he, you know... *inexplicably hand gestures* msdos compatible?

[periodically80s]

[consolefixer]

May 6, 2024:

Not posted in a while. Another Nintendo Entertainment System (NES), refurbished for a retro gamer. Thanks for stopping by. #nintendo #supermariobros3 #mspacman #nes #retrogamer

[andmaybegayer]

So, the esp32c3 from seeed has these battery pads on the underside that allows you to use the integrated charge controller, which is nice for a cheap devboard.

Now, I don't have a hotplate, and the rest of it is castellated so it's easy to do by hand. My question is: Is this. Allowed.

just put some big vias through the board and flood them with solder from the underside. Is this stupid or will it work.

[wired-weirdness]

I always say go for experimentation. I would think that would work, it may get crazy hot trying to get the solder to drip and attach to the second surface though.

What I have seen and done in the past is basically you first solder a pin to the pad making it a through hole device then solder like you would a standard transistor or resistor.

You can cut open a wire and pull out the solid core then coil one end to make a pad and the rest of the wire section is left straight. The coiled wire pad is soldered to the smd pad and the straight section used in the through hole. But it makes the part stick up a bit so using a very small amount of solder is important. For your application though I don’t think this would work if the rest of the board is to use the castellated pads.

Or make a big hole in the board the esp32 is going on to so wires to a battery connector can pass through.

[thisischeri]

instagram: cheri.png

[shiftythrifting]

Incredible book I found and bought!

[commodorez]

Digital Equipment Corporation PDP-8 from 1965

Large Scale Systems Museum (LSSM) - mact.io - Pittsburgh, PA

[oldguydoesstuff]

Interlaced CRT scanning. This trick displays a complete television image as a set of two interleaved frames, first even then odd rows for instance. This scheme allows CRT TV images to appear to be more responsive to motion and with less flicker, even at relatively low frame rates such as the NTSC 29.97 frames/sec broadcast standard.

The need for interlacing has long vanished in the LCD display, digital streaming and digital broadcast world, supported as a legacy standard if supported at all.

[commodorez]

Usagi Electric's relay logic adding machine

[56k-modem]

[never-obsolete]

[elektrostantsiya]

HV power lines somewhere in Germany

[amwult]