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fixed error when rain.txt not present #66

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merged 1 commit into from
Sep 5, 2022
Merged

fixed error when rain.txt not present #66

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20 changes: 11 additions & 9 deletions enviro/boards/weather.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,31 +4,33 @@
from machine import Pin, PWM
from pimoroni import Analog
from enviro import i2c, hold_vsys_en_pin
import enviro.helpers
import enviro.helpers as helpers
from phew import logging

RAIN_MM_PER_TICK = 0.2794

bme280 = BreakoutBME280(i2c, 0x77)
ltr559 = BreakoutLTR559(i2c)

piezo_pwm = PWM(Pin(28))

wind_direction_pin = Analog(26)
wind_speed_pin = Pin(9, Pin.IN, Pin.PULL_UP)

def startup():
import wakeup

# check if rain sensor triggered wake
rain_sensor_trigger = wakeup.get_gpio_state() & (1 << 10)

if rain_sensor_trigger:
# read the current rain entries
rain_entries = None
with open("rain.txt", "r") as rainfile:
rain_entries = rainfile.read().split("\n")
rain_entries = []
if helpers.file_exists("rain.txt"):
with open("rain.txt", "r") as rainfile:
rain_entries = rainfile.read().split("\n")

# add new entry
rain_entries.append(enviro.helpers.datetime_string())
logging.info("> add new rain trigger at {helpers.datetime_string()}")
rain_entries.append(helpers.datetime_string())

# limit number of entries to 190 - each entry is 21 bytes including
# newline so this keeps the total rain.txt filesize just under one
Expand Down Expand Up @@ -119,10 +121,10 @@ def timestamp(dt):
return time.mktime((year, month, day, hour, minute, second, 0, 0))

def rainfall():
if not enviro.helpers.file_exists("rain.txt"):
if not helpers.file_exists("rain.txt"):
return 0

now = timestamp(enviro.helpers.datetime_string())
now = timestamp(helpers.datetime_string())
with open("rain.txt", "r") as rainfile:
rain_entries = rainfile.read().split("\n")

Expand Down