Stratospheric flight to meassure environment variables
Preamble: We got the opportuity to get around 300 gramm of usable weight during a weatherballonflight up to 35 km height. We used it to messure an amount of different variables.
Used equipment: BMP180 (Temperature, Humidity, Pressure) [Outside] MPU-6050 (Gyro, Acceleration) [Outside] TSL45315 (Luxmeter) [Outside] HDC1000 (Temperature, Humidity) [Outside] DHT22 (Temperatur) [Inside] ADXL345 [Outside] MicroSD-Card incl. PCB for i²C NodeMCUv3 (with 5V out) 2x 18650-Cells in parallel self-designed PCB (need to be improved)
Used Libs:
MMA7760 http://www.timzaman.com/2011/05/acceleration-mma7660-3-axis-accelerometer-library/ ADXL345 https://github.com/adafruit/Adafruit_ADXL345 MPU6050 https://github.com/tockn/MPU6050_tockn HDC1000 https://github.com/adafruit/Adafruit_HDC1000_Library TSL45315 https://github.com/adidax/Makerblog_TSL45315 BMP180 https://github.com/adafruit/Adafruit_BMP085_Unified
Recommended: https://github.com/adafruit/Adafruit_Sensor Required: https://github.com/jrowberg/i2cdevlib
Note: From our messurements we assume that the system can live up to 20 hours while messure every 500ms. For reliability reasons we recommend to put two 18650-Packs in parallel to avoid a loss of data in case of a batteryfailure.
//////////////////////////////////////////////////////////////////////// German version below
Preambel: Wir hatten die Möglichkeit 300 Gramm an Material auf einen Wetterballonflug mitzuschicken. Wir nutzten das um eine Vielzahl an Umgebungsvariablen aufzuzeichnen.
Verwendetes Material BMP180 (Temperatur, Feuchtigkeit, Druck) [Außen] MPU-6050 (Gyro, Beschleunigung) [Außen] TSL45315 (Luxmeter) [Außen] HDC1000 (Temperatur, Feuchtigkeit) [Außen] DHT22 (Temperatur) [Innen] ADXL345 (Beschleunigung) [Außen] MicroSD-Card inkl. PCB für i²C [Innen] NodeMCUv3 (with 5V out) [Innen] 2x 18650-Cells parallel geschaltet [Innen] self-designed PCB (verbessungsbedüftig) [Innen]
Used Libs:
MMA7760 http://www.timzaman.com/2011/05/acceleration-mma7660-3-axis-accelerometer-library/ ADXL345 https://github.com/adafruit/Adafruit_ADXL345 MPU6050 https://github.com/tockn/MPU6050_tockn HDC1000 https://github.com/adafruit/Adafruit_HDC1000_Library TSL45315 https://github.com/adidax/Makerblog_TSL45315 BMP180 https://github.com/adafruit/Adafruit_BMP085_Unified
Optional: https://github.com/adafruit/Adafruit_Sensor Benötigt: https://github.com/jrowberg/i2cdevlib