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Has anybody used Infinity cascade IO expand module for Raspberry PI? Like the one described here http://www.bananapi.com/index.php/purchase/2-uncategorised/36-banana-pi-io-extend-board, but only red.

I'm trying to understand the source code, because everything I try to connect is not working.

What Q port should I use for connecting leds? Thank you.

  • Is this designed to be operated with the raspberry Pi? – Ghanima Apr 27 '15 at 14:40
  • Yeah. I found the same code for a red module that was targeted for RPI. – nucandrei Apr 27 '15 at 14:42
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It seems that the component linked above use a serial approach. 3 pins are used to command it. SER is used for serial data transmission, SRCLK to push bits down the way and RCLK to expose stored values on wires.

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