I'm writing a Python Script for a Raspberry Pi to measure different sensors. We are planning to send the Pi with that Script running to the stratosphere, so the power usage for the Pi is limited.
I excuse myself in advance for the code, I had no prior experience with Python. Are there any ways I can make this code more battery friendly? Would it be beneficial to write 10 rows at once instead of writing one row at a time?
#!/usr/bin/env python3
from sense_hat import SenseHat
import time
import csv
import datetime
sense = SenseHat()
sense.clear()
sense.set_imu_config(True, True, True)
sense.low_light = True
with open('data.csv', mode='w') as file:
writer = csv.writer(file, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
writer.writerow(['Zeit','Temperatur1', 'Temperatur2', 'Temperatur3', 'Luftdruck', 'Luftfeuchtigkeit', 'Yaw', 'Pitch', 'Roll', 'Compass X', 'Compass Y', 'Compass Z', 'Gyro X', 'Gyro Y', 'Gyro Z'])
with open('acc.csv', mode='w') as file:
writer = csv.writer(file, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
writer.writerow(['Zeit','Acc_X','Acc_Y','Acc_Z'])
with open('log.csv', mode='w') as file:
writer = csv.writer(file, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
writer.writerow(['Zeit','Fehler'])
# Farben definieren
red = (255, 0, 0)
green = (0, 255, 0)
black = (0,0,0)
def writeDataToCsv(temperature, temperature2, temperature3, pressure, humidty, yaw, pitch, roll, mag_x, mag_y, mag_z, gyro_x, gyro_y, gyro_z):
with open('data.csv', mode='a') as file:
writer = csv.writer(file, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
writer.writerow([datetime.datetime.now(),temperature, temperature2, temperature3, pressure, humidty, yaw, pitch, roll, mag_x, mag_y, mag_z, gyro_x, gyro_y, gyro_z])
def writeAccelerationToCsv(x,y,z):
with open('acc.csv', mode='a') as file:
writer = csv.writer(file, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
writer.writerow([datetime.datetime.now(),x,y,z])
sense.set_pixel(0, 0, green)
time.sleep(.05)
sense.set_pixel(0, 0, black)
def main():
sense.set_pixel(0, 0, black)
counter = 0
try:
while True:
#Region Acceleration
acceleration = sense.get_accelerometer_raw()
acc_x = acceleration['x']
acc_y = acceleration['y']
acc_z = acceleration['z']
writeAccelerationToCsv(acc_x,acc_y,acc_z)
time.sleep(.250)
counter+=1
#Region Data
if(counter == 4):
temperature = sense.get_temperature()
temperature2 = sense.get_temperature_from_humidity()
temperature3 = sense.get_temperature_from_pressure()
pressure = sense.get_pressure()
humidty = sense.get_humidity()
orientation = sense.get_orientation()
yaw = orientation["yaw"]
pitch = orientation["pitch"]
roll = orientation["roll"]
mag = sense.get_compass_raw()
mag_x = mag["x"]
mag_y = mag["y"]
mag_z = mag["z"]
gyro = sense.get_gyroscope_raw()
gyro_x = gyro["x"]
gyro_y = gyro["y"]
gyro_z = gyro["z"]
writeDataToCsv(temperature, temperature2, temperature3, pressure, humidty, yaw, pitch, roll, mag_x, mag_y, mag_z, gyro_x, gyro_y, gyro_z)
counter = 0;
except Exception as e:
with open('log.csv', mode='a') as file:
writer = csv.writer(file, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
writer.writerow([datetime.datetime.now(),str(e)])
sense.set_pixel(1, 0, red)
finally:
pass
main()
if __name__ == '__main__':
main()