Enphase-envoy driver

[weather list]

I’ve been working on getting this going and have some questions.

Reading Matthew Wall’s notes in envoy.py, my Envoy appears to be the ovular unit.

Current Software Version R3.12.34 (2e8bfe)

Software Build Date Wed Apr 29, 2015 02:28 PM PDT

On my unit, http://192.168.1.16/api/v1/production outputs:

{

  "wattHoursToday": 23071,

  "wattHoursSevenDays": 157158,

  "wattHoursLifetime": 23581797,

  "wattsNow": 842

}

envoy.conf is set up so:

[Envoy]
    # This section is for the Enphase Envoy driver.
   
    # Hostname or IP address of the Envoy
    host = 192.168.1.16
   
    # Envoy serial number
    serial = serial_nbr_here
   
    # The driver to use:
    driver = user.envoy

Running envoy.conf manually outputs:

LOOP:   2020-04-30 16:16:59 EDT (1588277819) dateTime: 1588277819, energy: None, energy_total: None, maxSolarRad: 751.250337201, power: None, rainRate: 0, usUnits: 1

REC:    2020-04-30 16:15:00 EDT (1588277700) dateTime: 1588277700.0, energy: None, energy_total: None, ET: None, interval: 5, maxSolarRad: 767.6566517, power: None, rainRate: 0.0, usUnits: 1

envoy.py has this config:

class Envoy(object):


    def __init__(self, host):
        self.host = host
        self.url = "http://%s/api/v1/production" % host

But I am clearly not getting the output shown by the web interface.

weewx 3.9.2

python 2.7

Pointers most welcome.

[P Black]

All,

I am trying out 2 different tasks.  First is to confirm that I can make weewx run on a raspberry pi before I move from wview and then to automate the collection of data from our enphase envoy system.  This post is regarding my second task which I am trying out on a different raspberry pi from what I will use to replace my wview system.

System:

raspberry pi 4b

latest os

WeeWx 5.0

So far:

WeeWx runs using Simulator

Installed Matthew Wall's driver

 -   weectl extension install /home/pi/weewx-envoy.zip

Then ran

-  weectl station reconfigure

but obtained these warnings and errors:

Warning ---

Choose a driver. Installed drivers include:
  0) ?               (user.envoy)              Missing parentheses in call to 'print'. Did you mean print(...)? (envoy.py, line 164)
  1) AcuRite         (weewx.drivers.acurite)
then the standard list of stations

After selecting 0): for the driver the errors arrive:

driver [4]: 0
Traceback (most recent call last):
  File "/usr/share/weewx/weectl.py", line 74, in <module>
    main()
  File "/usr/share/weewx/weectl.py", line 66, in main
    namespace.func(namespace)
  File "/usr/share/weewx/weectllib/__init__.py", line 121, in dispatch
    namespace.action_func(config_dict, namespace)
  File "/usr/share/weewx/weectllib/station_cmd.py", line 311, in reconfigure_station
    weectllib.station_actions.station_reconfigure(config_dict=config_dict,
  File "/usr/share/weewx/weectllib/station_actions.py", line 164, in station_reconfigure
    config_config(config_dict,
  File "/usr/share/weewx/weectllib/station_actions.py", line 207, in config_config
    config_driver(config_dict, driver=driver, no_prompt=no_prompt)
  File "/usr/share/weewx/weectllib/station_actions.py", line 419, in config_driver
    driver_editor, driver_name, driver_version = weecfg.load_driver_editor(final_driver)
                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/share/weewx/weecfg/__init__.py", line 451, in load_driver_editor
    driver_module = importlib.import_module(driver_module_name)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 936, in exec_module
  File "<frozen importlib._bootstrap_external>", line 1074, in get_code
  File "<frozen importlib._bootstrap_external>", line 1004, in source_to_code
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/etc/weewx/bin/user/envoy.py", line 164
    print "Specify the hostname or address of the Envoy"
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?

Before I jump in blindly looking at the code.....a question. Is the core issue something like the driver no longer will work with the current version of WeeWx or is there some simple modification that will make it work?

Stay healthy,

Pat

[vince]

 Missing parentheses in call to 'print'. Did you mean print(...)? (envoy.py, line 164)

Looks like the driver is very ancient and has not been ported to python3.   You could try to clean it up with 2to3 and perhaps that's all that is missing....

[P Black]

Vince,

Great suggestion.  I must admit that it's been a few years since last coding project.  Is it like riding a bike? In the process of adding a few tools to the PI and will give it a try.  Should know if this reasonable step works in the next week or so.

Stay healthy,

Pat