Qwiic Midpoint and Endpoint Connection to RPi 4B

Qwiic System
1

I have both the endpoint and midpoint connectors but I am getting tangled up in all these jumper options.
What I want to do is place two rows of environmental type sensors (Upper & Lower), so my vision says connect midpoint to the correct Raspberry Pi 4 pins. This connection would connect the G, 3V3, SDA, SCL off the GPIO header on the Pi to same connections on the Midpoint. Not sure what the EN connection is for but suspect it is not needed for my project.
So I have the RPi connected to Midpoint, with a pair of SHORT ethernet 6" - 12" cables. Call ethernet cable from midpoint socket #1 as “LOWER” sensors and socket #2 as *“UPPER”
This would connect to my UPPER and LOWER endpoints which would each have a string of sensors such as BME or SGP sensors as I determine my options. I sketched up a schematic as sometimes a verbal/textual explanation doesn’t help.

Endpoint_Schematic
Endpoint_Schematic2667×1500 103 KB

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You’ll probably need to alter the setup to where the RPI is connected to and endpoint rather than the midpoint, from the guide:

Terminating Resistors

Related to the above tip, the QwiicBus only functions with controllers (Arduino/SBC/etc.) connected to the EndPoint. As the name may suggest, the EndPoint design includes the required terminating resistors to act as the ends of the QwiicBus. The MidPoint does not include these resistors since they are intended to be inserted in between the EndPoints as nodes.

Other than that ensure you have different addresses configured for the sensors on the same i2c bus (or use a mux if they have hard-coded i2c addresses) and it should be good

3

Thank You for the reply.
For some reason that dates to when these first came out you had to have at least a midpoint and an endpoint but that has been quite some time ago and easily wrong on my part.
So if I have two endpoints, I could bring EP#1 off of Pi and daisy chain the 3 - 4 sensors off of that endpoint’s QWIIC connections, call that bottom (for my scenario).
Then use a ethernet patch cable about 12" long to connect between EP#1 and EP#2 then daisy chain some sensors off of that EP and that would be my upper sensors.

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