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Two Charlieplexed Matrices to show candle flame
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Two Charlieplexed Matrices to show candle flame

by pavelmar on Fri Nov 29, 2019 8:05 pm

Hello everybody,

i know this topic already existed (viewtopic.php?uid=438095&f=47&t=139042&start=0) but at the moment it is locked so i am creating a new one.

I am wondering if anybody (i.e. @Benshemuel or @shaunmav) managed to bring this project to a final result. And if yes, whether they proceeded with two IS31FL3731 drivers (1 for each led display) or used a single driver?

If using 1 driver, how have the diodes behaved over the time (understand there are some current load issues if 2 led matrices are connected in parallel as already discussed).

If using 2 drivers, how was solved the issue with the second driver occasionally blocking I2C bus and freezing the frames (as referred here viewtopic.php?f=52&t=110773&p=637628&hilit=IS31FL3731#p637628).

Really appreciate your answer,

pavelmar
 
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Joined: Fri Nov 29, 2019 7:18 pm

Please be positive and constructive with your questions and comments.