16x24 LED Matrix on RasPi?
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16x24 LED Matrix on RasPi?

by danrl on Thu Jun 21, 2012 2:39 pm

I'd like to chain 4 of these and use them with a RasPi since the arduino is not able to handle SSL (I have to fetch data to display using SSL).

How are chances? Are you already working on anything related?

Re: 16x24 LED Matrix on RasPi?

by pburgess on Thu Jun 21, 2012 3:08 pm

We don't have any software or libraries for the Raspberry Pi "in the oven" at the moment.

Depending on your comfort-level with writing the low-level bitbang-y stuff, there's no reason why this shouldn't be possible in principle...the interface is a simple SPI-like thing. The voltage levels are different, so just watch your step there, but usually there's not a problem talking to 5V inputs from a 3.3V device.

Some Raspberry Pi GPIO tutorials have been popping up lately.

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Re: 16x24 LED Matrix on RasPi?

by danrl on Thu Jun 21, 2012 3:26 pm

I usually don't hesitate to write a kernel module or some c-code to get it working with /sys filesystem, but in this particular case I have not enough time and would like to use the library functions from ardafruit. Thanks for the links, I'll think about getting in between the lib and maybe /sys for gpio.