Domoticz

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-- Script to pull GoodWe power generation data into Domoticz
-- Based on script from M Grimwade 2015
-- Modified by Wanegedoe
script_version = 6

--------------------------------------------------------------------------
-- stationID of GoodWe and the sensors Idx in domoticz
stationID = 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
idx_vpv1  = 143
idx_vpv2  = 144
idx_ipv1  = 145
idx_ipv2  = 146
idx_ppv1  = 155
idx_ppv2  = 156
idx_epvac = 149
idx_vac   = 152
--------------------------------------------------------------------------

-- Function to update a Domoticz sensor object
function update_device(id, value1, value2)
  if value2 == nil then
    commandArray[id] = {['UpdateDevice'] = id .. "|0|" .. value1}
  else
    commandArray[id] = {['UpdateDevice'] = id .. "|0|" .. value1 .. ";" .. value2}
  end
  return
end

-- script starts here
print("goodwe script version " .. script_version)

-- Load the JSON Lua module
-- Load module to print tables from: https://github.com/kikito/inspect.lua
JSON = (loadfile "/src/domoticz/scripts/lua/JSON.lua")()
-- inspect = (loadfile "/src/domoticz/scripts/lua/inspect.lua")()

-- Command array to populate with Domoticz instructions
commandArray = {}

-- Perform an HTTP request to get the raw string from the REST endpoint
local config=assert(io.popen('curl https://eu.goodwe-power.com/Mobile/GetMyDeviceListById_V3?stationId=' .. stationID))
local json_string = config:read('*all')
config:close()
--print(json_string)

-- Decode the JSON formatted string to a Lua table
local t = JSON:decode(json_string)
local t_goodwe = t.result[1]
--print(inspect(t_goodwe))

-- get the data from the tables
update_device(idx_vpv1, t_goodwe.vpv1)
update_device(idx_vpv2, t_goodwe.vpv2)
update_device(idx_ipv1, t_goodwe.ipv1)
update_device(idx_ipv2, t_goodwe.ipv2)

update_device(idx_vac, t_goodwe.vac1)
update_device(idx_epvac, t_goodwe.power, tonumber(t_goodwe.etotal) *1000)

local p_pv1 = tonumber(t_goodwe.vpv1) * tonumber(t_goodwe.ipv1)
local p_pv2 = tonumber(t_goodwe.vpv2) * tonumber(t_goodwe.ipv2)
update_device(idx_ppv1, p_pv1,0)
update_device(idx_ppv2, p_pv2,0)

return commandArray