Firmware for Univarsal Wettersensor

#Changelog#

##Version 0.15 (Development)##

  • Improve / Fix debugging.
  • Fix #16 so peering with HM-CC-RT-DN should stable now.
  • Add hysteresis for battery voltage measurement.
  • Experimental support for US-100 ultrasonic distance sensor (Do not use this experimental feature if you need the peering with HM-CC-RT-DN at this time)

##Version 0.14##

  • Fix millis() overflow bug. Now, the sensor stays in sleep mode after 49 days, so battery should not drained anymore
  • Battery voltage now measured with 1 digit only.

##Version 0.13 (Beta)##

  • Add new register:
    • transmitTryMax: How often should the sensor try to send data without ack.
    • lowBatLimit: Defined the battery voltage used for low battery detection.
    • ledMode: Switch the device LED on or off while sent out data.
    • altitude: Define the sensor-altitude for calculating the air pressure at sea level.