=====Sensor Board=====
[[flarm-hb9cv]]

{{:ov_sensor_board.jpg?300 |}}
====Generic Info====

Board is connected using I2C to the Cubieboard


====Sensors on Sensorboard====

==2x MS5611==

Absolute pressure sensor\\
Range 10 .. 1200 mbar\\
Resolution up to 0.012 mbar\\
Adr 0x77 and 0x76 (7Bit)\\
[[http://www.meas-spec.com/downloads/MS5611-01BA03.pdf‎|Datasheet]]

==MPU9150==

Gyro, accelerometer, magnetometer and digital motion processor.\\
Adr 0x68 (pin AD0 low) or 0x69 (AD0 high) (7bit)\\
  
More information [[http://www.invensense.com/mems/gyro/mpu9150.html|here]].\\
[[http://www.invensense.com/mems/gyro/documents/AN-MPU-9150EVB-00.pdf‎|Datasheet]]

==AMS5915==

Differential pressure sensor
Range 50mbar (max. 300 km/h IAS)
Resolution <0,004 mbar (50 mbar, FSO 13107 counts)
Adr 0x28 (7bit)
[[http://www.amsys.info/sheets/amsys.en.ams5915_e.pdf|Datasheet]]

== (MS4525HRD - Not installed on sensorboard, would be an alternative to AMS5915, not yet available)==

Differential pressure sensor, possible alternative to AMS5915?\\
24bit resolution (overkill?) and nice form factor (barbed connectors sideways)\\
Pinout similar to AMS5915, maybe PCB layout could accomodate both sensors?\\
Adr 0x77 and 0x76 (7Bit) - same as MS5611 and MS5803\\
[[http://meas-spec.com/downloads/MS4525HRD.pdf|Datasheet]]


==Temperature Sensor DS1820==

Temperature sensor shall be mounted in free airstream -> not mounted on PCB\\
Connector 3.5mm stereo plug\\
LX8000/9000 uses the same sensor\\
[[http://www.micropik.com/PDF/ds1820.pdf|Datasheet]]\\
good accuracy, good form factor, not I2C but single wire interface


==Other stuff==

I2C to single wire bridge\\
I2C EEPROM for calibration data storage\\

[[projects:series_00:software:nmea | NMEA_protocol to XCSoar]]


Values provided to XCSoar

  IAS (AMS5915)
  Baro height (MS5611)
  TEK pressure (MS5611)
  Gyro and accelerometer (MPU9105)
  outside air temperature (??)


[[sensord|Interface Programm "sensord"]]