Use i2c to run 7 segment LED did not work

Hi, I am using Xavier i2c to drive this 7 segment LED, I followed the instructions from JetsonHacks:

However, it did not work. When I run

sudo i2cdetect -y -r 1

It could not see anything on address 0x70.


Please have a confirm which bus you was connected.
The your video was connect to bus 8

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