Try this version of byows.py - copy to bin/user and restart weewx.
On Tuesday, January 1, 2019 at 7:38:18 AM UTC-5, Patrick Tranchant wrote: > > in my original file, there is: > > def spin(): > global wind_count > wind_count = wind_count + 1 > > > maybe it's missing in "byows.py"? I do not know > > Patrick > > On Saturday, December 8, 2018 at 3:40:43 PM UTC+1, Patrick Tranchant wrote: >> >> hello I am a newbie from France ( sorry for my english ) >> >> I want to use weewx on a raspberry with a weather station built by myself >> (view on Magpi) >> I don't see my station on your website to configure : >> >> Weather Station Hardware Comparison: I don't found my weather station. >> Do you have a solution or how to configure Weewx >> >> thank you for your help >> >> Patrick >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
#!/usr/bin/python # Copyright 2018 Pat O'Brien https://obrienlabs.net # # This driver takes the sensors used in the Raspberry Pi # build your own weather station project and converts it # into a format that can be used with weewx. # # The Raspberry Pi project can be found here: # https://projects.raspberrypi.org/en/projects/build-your-own-weather-station # import os # POB REMOVE os.environ['GPIOZERO_PIN_FACTORY'] = os.environ.get('GPIOZERO_PIN_FACTORY', 'mock') # POB REMOVE from gpiozero import Button import time import math import bme280_sensor_2 import wind_direction_byo_5 import statistics import ds18b20_therm import datetime import syslog import weedb import weewx.drivers import weeutil.weeutil import weewx.wxformulas temp_probe = ds18b20_therm.DS18B20() wind_speed_sensor = Button(5) wind_speed_sensor.when_pressed = BYOWS.spin # is this a valid call for the below class function? rain_sensor = Button(6) rain_sensor.when_pressed = BYOWS.bucket_tipped # is this a valid call for the below class function? def logmsg(dst, msg): syslog.syslog(dst, 'BYOWS: %s' % msg) def loginf(msg): logmsg(syslog.LOG_INFO, msg) def logerror(msg): logmsg(syslog.LOG_ERROR, msg) def logdebug(msg): logmsg(syslog.LOG_DEBUG, msg) def loader(config_dict, engine): station = BYOWS(**config_dict['BYOWS']) return station class BYOWS(weewx.drivers.AbstractDevice): """ Driver for the Raspberry Pi Bring Your Own Weather Station. """ def __init__(self, **stn_dict) : """ Initialize object. """ self.station_hardware = stn_dict.get('hardware') # TODO CONVERT TO WEEWX OPTIONS? self.interval = 60 # Measurements recorded every 1 minute self.wind_count = 0 # Counts how many half-rotations self.radius_cm = 9.0 # Radius of your anemometer self.wind_interval = 5 # How often (secs) to sample speed self.wind_gust = 0 self.cm_in_a_km = 100000.0 self.secs_in_an_hour = 3600 self.adjustment = 1.18 self.bucket_size = 0.2794 # mm self.rain_count = 0 self.store_speeds = [] self.store_directions = [] def hardware_name(self): return self.station_hardware # Every half-rotations, add 1 to count def spin(self): self.wind_count = self.wind_count + 1 #print("spin" + str(self.wind_count)) def calculate_speed(self, time_sec): circumference_cm = (2 * math.pi) * self.radius_cm rotations = self.wind_count / 2.0 # Calculate distance travelled by a cup in km dist_km = (circumference_cm * rotations) / self.cm_in_a_km # Speed = distance / time km_per_sec = dist_km / time_sec km_per_hour = km_per_sec * self.secs_in_an_hour # Calculate Speed final_speed = km_per_hour * self.adjustment return final_speed def bucket_tipped(self): self.rain_count = self.rain_count + 1 #print (self.rain_count * self.bucket_size) def reset_rainfall(self): self.rain_count = 0 def reset_wind(self): self.wind_count = 0 def reset_gust(self): self.wind_gust = 0 #=============================================================================== # LOOP record decoding functions #=============================================================================== def genLoopPackets(self): """ Generator function that continuously returns loop packets """ for _packet in self.genPackets(): yield _packet def genPackets(self): """ Generate measurement packets. """ global temp_probe while True: start_time = time.time() while time.time() - start_time <= self.interval: wind_start_time = time.time() self.reset_wind() while time.time() - wind_start_time <= self.wind_interval: self.store_directions.append( wind_direction_byo_5.get_value() ) final_speed = calculate_speed( self.wind_interval ) # Add this speed to the list self.store_speeds.append( final_speed ) wind_average = wind_direction_byo_5.get_average( self.store_directions ) self.wind_gust = max( self.store_speeds ) wind_speed = statistics.mean( self.store_speeds ) rainfall = self.rain_count * self.bucket_size # mm. if units are US, do we need to convert to inch? self.reset_rainfall() self.store_speeds = [] self.store_directions = [] ground_temp = temp_probe.read_temp() humidity, pressure, ambient_temp = bme280_sensor_2.read_all() # Build the weewx loop packet packet = { 'dateTime': int( time.time() ), 'usUnits': weewx.US } packet['outTemp'] = float( ambient_temp ) packet['outHumidity'] = float( humidity ) packet['soilTemp1'] = float( ground_temp ) packet['pressure'] = float( pressure ) packet['rain'] = rainfall packet['windDir'] = float( wind_average ) packet['windSpeed'] = float( wind_speed ) packet['windGust'] = float( self.wind_gust ) # Send to the loop yield packet # Delay reading sensors for the interval time? #time.sleep( self.interval )
