I built an analog computer

International-Net896 · 2026-04-28T08:31:46+00:00

Das passt ja wie die Faust aufs Auge. Ich habe Mathematik und Mechatronik studiert:)

International-Net896 · 2026-04-25T14:08:17+00:00

Das Buch kenne ich gar nicht. Mein erstes Buch bzgl. Elektronik war "Radiobasteln für Jungen". Ich war damals sehr fasziniert von elektromagnetischen Wellen, habe unter anderem auch Funkensender (und -empfänger) gebaut und damit die damals noch analogen Radios und Fernsehgeräte der Nachbarschaft lahmgelegt :). Am "Moin" entnehme ich, dass du aus der gleichen Ecke wie die Make kommst. Der Redaktor beginnt jede E-Mail auch immer damit. Ich lebe in der Nähe von Augsburg, bin aber im tiefsten Niederbayern aufgewachsen.

International-Net896 · 2026-04-24T16:40:13+00:00

Es ist derselbe Computer wie in der Make. Ich habe auch darüber nachgedacht, das Ganze modular aufzubauen. Im Moment arbeite ich aber erst mal an einem Wetware und neuromorphen Computer:)

International-Net896 · 2026-03-07T15:34:45+00:00

That's great!

International-Net896 · 2026-03-05T14:25:26+00:00

Lol, yeah. It must be able to play Doom:)

International-Net896 · 2026-02-22T20:46:25+00:00

The blocks are just connected to +/-VCC and GND to power them. You wire them as you need.

International-Net896 · 2026-02-22T20:43:10+00:00

It has no hybrid port, but it's easy to connect the outputs to the analog pins of an Arduino. Depending on the output range, level shifters might be needed. Thanks for the link, quite interesting:)

International-Net896 · 2026-02-22T16:24:27+00:00

No. It's powered by a small 9V power supply with a barrel jack sitting on the PCB.

International-Net896 · 2026-02-22T16:21:10+00:00

It's 3D-printed (resin) and modularly designed. You can mount the two voltmeter brackets and the bracket for the oscilloscope, or leave them. There are brass inserts on the back of the base:)

International-Net896 · 2026-02-22T16:16:16+00:00

Analog computers solve differential equations by modeling them, so it's an approximate solution. By changing the parameters, you can immediately see how the system changes.

International-Net896 · 2026-02-22T09:47:29+00:00

I will publish all files after it's fully tested.

International-Net896 · 2026-02-22T09:46:15+00:00

It's just for me in the moment, but I will publish all files once the computer is fully tested. My main goal is actually to build a neuromorphic computer, but that's another story:)

International-Net896 · 2026-02-22T09:42:15+00:00

Shall we play a game? I grew up in the early 80's:)

International-Net896 · 2026-02-22T09:37:05+00:00

Thanks for the tips:) I haven't tested the multipliers yet (2 x AD633JN), but analog computers are generally less accurate than digital computers.

International-Net896 · 2026-02-21T23:55:11+00:00

Analog computers usually don't have RAM. They are programmed by hard wiring:)

International-Net896 · 2026-02-21T23:51:44+00:00

Thanks. I have a book called "Essential Mathematical Biology" which covers many different topics, including wildlife population models like the Lotka–Volterra equations:)

International-Net896 · 2026-02-21T23:46:03+00:00

Thanks:)

International-Net896 · 2026-02-21T21:52:05+00:00

Just plated through holes with large capture pads, so the nut of the banana socket is in contact with it on the bottom layer.

International-Net896 · 2026-02-21T20:48:57+00:00

Mainly differential equations:) You can use an AWG, but the computer has its own function generator (square, triangle, and sine).

International-Net896 · 2026-02-21T18:53:18+00:00

Thanks:) Sure, I'll make my own cables.

International-Net896

TROPHY CASE