I got the same Wire.endTransmission() freeze problem too.
And I solved this problem by replacing the "Wire.h" with "WSWire.h" from:
Then everything works fine.
Hope this helps.
I got the same Wire.endTransmission() freeze problem too.
And I solved this problem by replacing the "Wire.h" with "WSWire.h" from:
Then everything works fine.
Hope this helps.