Interesting use of Raspberry Pi

The German band Kraftwerk are installing a series of 'art' pieces in Oslo, Norway for their upcoming tour: https://www.youtube.com/watch?v=ZBcSfgm9ig0

I went to the website Num8rs where Raspberry Pis can be seen in the manufacture of the installation.

Geoff Potter

Robert Peter Oakes over 9 years ago

Looks like there driving simple solid state relays, not all the components are visable connected to the second board but it is using SPI and the left most components is a Solid State Relay for sure
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rew over 9 years ago in reply to Robert Peter Oakes

I don't think its using SPI. SPI would be using more pins on the odd side (away from the edge of the board). And counting the pins, on this side I see 15 (GPIO22) connected and not 19,21,23 needed for SPI.

My first guess for the breadboarded chip is ULN2003, providing a 5V signal to the input side of the SSR as opposed to the 3.3V from the 'pi. (you can see pin2, 5V connected on the connector).
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Problemchild over 9 years ago in reply to rew

Probably more likely if all they are driving a Relay
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Robert Peter Oakes over 9 years ago in reply to Problemchild

I was thinking more a like the chip on the PI Digital but you may well be correct.

Yes it apears they are only friving relays (Solid State ones)
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GeoffPotter over 4 years ago

Received a notification from Element 14 that my original post has been approved - six years after submitting it! Can't blame COVID for that... Unfortunately the YouTube video is no longer available.
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feiticeir0 over 4 years ago in reply to GeoffPotter

I got SPAMMED last night by Element14 with 100+ emails from notifications... Most of them don't point to sites anymore... Don't know what the hell happened...
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skruglewicz over 4 years ago in reply to GeoffPotter

Interesting, I got about 100 messages from the raspberry pi group. I ended up on following and they stopped. Was wondering what was going on?
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skruglewicz over 4 years ago in reply to GeoffPotter

What the heck happened?
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