Fix memory leak
Initial commit (we have working bus enumeration!)
Clean up
Re-enable short-circuit in onewire_findnext
We have working T sampling
Implement systick (tested, but not used right now)

Also, it’s pretty inaccurate. It will be fine for waiting like 10
seconds between conversions though.
Add dedicated command to invoke temperature conversion
Embed code from Atmel application note for TWI via USI
We have working I²C to hint display
Add function to read only the temperature from a sensor
Add schematic for current onewire output stage
Merge sensor-node into devel
Fix ending up in inconsistent I²C state

If the TXing master advertised less payload than actually delivered, the
display would end up in an inconsistent state, not responding to any I²C
traffic at all anymore.
Finalize sensor node firmware