growattControl.py

import gowatt
import sys
import json

# Look for Growatt login from secrets.py
try:
    import login
except:
    print('No login details found!')
    print('Create a file called login.py with this content')
    print('GROWATT_USER = \'YOUR_SHINE_USER_NAME\'')
    print('GROWATT_PASS = \'YOUR_SHINE_PASSWORD\'')
    sys.exit(1)

# check for target_SOC percent and whether to run
if len(sys.argv) != 8:
    charge_rate = 80
    target_SOC = 40
    start_time_hours = 1
    start_time_minutes = 40
    end_time_hours = 4
    end_time_minutes = 30
    run = 1
else:
    (fn, charge_rate, target_SOC,
     start_time_hours, start_time_minutes,
     end_time_hours, end_time_minutes, run) = sys.argv

api = gowatt.Gowatt()
login_response = api.login(login.GROWATT_USER,
                           login.GROWATT_PASS)
if not login_response:
    print('Failed to log into server')
    sys.exit(2)
print('Successful login')

if api.setRuleBatteryFirst(start_time_hours, start_time_minutes,
                           end_time_hours, end_time_minutes,
                           amount=target_SOC, rate=charge_rate,
                           enable=bool(run)):
    print('Battery charging set successfully')
else:
    print('Battery changing times not set')
    exit(3)