Pin 3 and Pin 4 for USB

[jaywalker1981]

When I look at the schematics I see that the gold pads that connect to a USB host go through level converting before connecting to Pin3 and Pin4.

Is it possible to bypass this level converting circuit altogether and connect directly to Pin3 and Pin4(without any zenor diodes or resistors)? What are the repercussions of connecting my USB host directly to Pin3 and Pin4 for USB communication?

I don't think it will damage the digispark but could it damage the USB host?

[gogol]

I don't think it will damage the digispark but could it damage the USB host?

Look at http://en.wikipedia.org/wiki/USB#Signaling

Transmitted signal levels are 0.0 to 0.3 volts for low and 2.8 to 3.6 volts for high in full-bandwidth and low-bandwidth modes, and −10 to 10 mV for low and 360 to 440 mV for high in hi-bandwidth mode.


There are some USB hosts out there, which accept 5V for high, but you don't wish to try, if your notebook/PC/.. belongs to them!