I have an I2C sensor on the 1920 qwiic connector.
The 1920 schematic shows the qwiic is powered with 3V3_S.
Toggling WB_I02 has no effect. Sensor is always powered.
I swapped out the 4631 and 19007.
I only have one 1920 RevA.
I am missing reading the schematic?
What is the level on 3V3_S and where do you measured it? Directly on the 4-pin connector?
What is the external module connected via Qwiic? Does it have any powersource? Will you be able to share your connections?
The sensor is a Adafruit VL53L4CX TOF sensor.
It is connected with a qwiic cable.
The sensor board has an led on it, so it easy to see it still has power.
I changed out the 1920 for a 13002 pin breakout board.
I tested the 3V3_S at R2 on the 13002.
It is definitely changing with WB_IO2 control.
Nothing wrong with 4631 or 19007.
So i suspect something is wrong with my 1920.
I am going to use the 13002 for now, removing R1 and shorting R2 for now.