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Post by Christian on Aug 1, 2018 13:33:31 GMT -8
I just bought the Channel Mux Board and try to wire it up. I can't find JP6 and JP7 thought, have you changed the board layout or am I just blind?
Also another question: Can I wire JP8 directly to the 5V GPIO port on the Raspberry Pi to provide the MUX board with power?
Thanks and cheers.
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Post by SDL on Aug 2, 2018 4:46:06 GMT -8
Christian,
Please give me the numbers on the board. We have been getting ready to release a new board version, but I didn't think it was time to do that yet. You may have gotten an early one.
We have to update the documentation before releasing this!
JP6 and JP7 have been removed on the new board. You can cut and solder if you want to power I2C mux segments other than what you are feeding the board through J1.
No, you can't power the board with JP8. You need to feed it through J1 or JP1. BUT, you can't power the board from 5.0V if you are feeding it 3.3V signals from the Raspberry Pi. If you feed 5V into the board, then the pull-ups on SDA and SCL will be pulled up to 5.0V which may very well fry your Raspberry Pi inputs. If you are feeding the board with 3.3V GPIO lines, then you need to power it to 3.3V.
BP
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Post by Christian on Aug 4, 2018 9:22:18 GMT -8
The number is: 0057-051618-01
It also says "Version 2" on it.
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Post by SDL on Aug 5, 2018 11:29:13 GMT -8
Yes, you have the new board. We'll get the new documentation out this week. I'm a little confused how this happened. We need to change our procedures, clearly.
BP
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Post by SDL on Aug 13, 2018 16:24:04 GMT -8
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Post by yulaguilos on Sept 25, 2018 14:00:01 GMT -8
Hi - I still have the old version. I can see JP7 and JP6.
The assume, I'll use Female to Female or is there supposed to be included cable/wires for this?
In JP7, the leftmost is the pin1?
Yul
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Post by SDL on Sept 26, 2018 10:26:47 GMT -8
Yes, connect all the pins of JP7 and JP6. Yes, leftmost is the #1 pin.
BP
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