karlp

-- DHT22 to MQTT Publisher
-- Andrew Elwell, 2016-06-08

client='ESP-'..node.chipid()
m = mqtt.Client(client, 60)
m:lwt("status/"..client, "offline", 0, 1)

m:connect("10.1.1.251", 1883, 0, 1, function(hohoho) 
      print("connected")
      hohoho:publish(string.format("status/%s", client, 0, 1))

karlp

#!/usr/bin/python

# script to poll growatt PV inverter and spit out values
# Andrew Elwell <Andrew.Elwell@gmail.com> 2013-09-01

import ConfigParser
from pymodbus.client.sync import ModbusSerialClient as ModbusClient
import time
import mosquitto

karlp

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <modbus.h>

#define SM4_ID  3
#define P120_ID 2