Raspberry Pi 3: Not sensing Phidget Bridge

[ChristianE]

I'm trying to read a Phidget Bridge (https://www.phidgets.com/?tier=3&catid= ... &prodid=35) with Raspberry Pi 3 runnning Jessie. I've gone through the generic Linux install (https://www.phidgets.com/docs/OS_-_Linu ... with_Linux), as well as getting the Phidgets22 library.

However, when I run VoltageRatioInput.py, as from the Resources Page on the first URL, the code gets stuck on
"Waiting for the Phidget VoltageRatioInput Object to be attached..."
and then times out.

Running dmesg | tail does show that Pi has sensed a Phidget being attached to the USB port however.

Running the generic HelloWorld.c file, after a successful compilation, also does not return anything when the Bridge is plugged in.

Help?

[mparadis]

Is the Bridge plugged directly into the Pi's USB ports? The power supply on the Pi 3's USB ports is not up to USB standard (500mA), so most Phidgets will require a powered USB hub in order to show up on a Pi.

[waltoncade]

Bought a USB hub with an external power supply. Worked, thank you so much! https://www.amazon.com/AmazonBasics-Por ... ds=usb+hub