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Interesting use of Raspberry Pi

GeoffPotter over 10 years ago

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

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Robert Peter Oakes over 10 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 10 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 10 years ago in reply to rew

Probably more likely if all they are driving a Relay
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Problemchild over 10 years ago in reply to rew

Probably more likely if all they are driving a Relay
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Robert Peter Oakes over 10 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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