This question is probably stupid but I don't want to kill my Teensy4.1 with a stupid manipulation...
I currently have a simple wireless keyboard dongle connected to the USB host header pins of the teensy 4.1. The pins provide even 5V to power it so no problem.
I want to connect one more device to it which is a USB to MIDI cable (not sure about the current it will consume..)
First question:
Can I connect a USB 2.0 hub to the Teensy and see both keyboard dongle and USB midi serial cable from the Teensy host library?
Second question:
My Teensy is now powered via the USB programming port (5v).
What would happen if I power my T4.1 with a battery via Vin pin?
Will there still be 5V power on the USB header pins without USB hub (is there a DC to DC up conversion, I guess not?) or do I need Vin = 5v for that? What battery to use in that case to guarantee 5V on USB header?
3rd question:
What if I accidentally power the teensy via the USB programming port and Vin battery at same time? Is there a kind of protection against that?
I currently have a simple wireless keyboard dongle connected to the USB host header pins of the teensy 4.1. The pins provide even 5V to power it so no problem.
I want to connect one more device to it which is a USB to MIDI cable (not sure about the current it will consume..)
First question:
Can I connect a USB 2.0 hub to the Teensy and see both keyboard dongle and USB midi serial cable from the Teensy host library?
Second question:
My Teensy is now powered via the USB programming port (5v).
What would happen if I power my T4.1 with a battery via Vin pin?
Will there still be 5V power on the USB header pins without USB hub (is there a DC to DC up conversion, I guess not?) or do I need Vin = 5v for that? What battery to use in that case to guarantee 5V on USB header?
3rd question:
What if I accidentally power the teensy via the USB programming port and Vin battery at same time? Is there a kind of protection against that?