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Detect I2C signals via LED (SDA+SCL)

The physical layer of an I2C bus normally includes a Serial CLock (SCL) and Serial DAta (SDA) signal. If you are only using one beam of light it is assumed you can only transmit 1 of these 2 signals. ...
st2000's user avatar
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0 votes

MAX7219 library that can compensate for poorly designed/miswired 8x32 panel?

I experienced the same problem. This is a hardware design problem. It is probably why these things were so cheep on EBAY. These things shift 1 bit at a time in a serpentine pattern. They were wired ...
Michael Kambourian's user avatar

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