mqttHome.h File Reference

MQTT related definitions for an experimental smart home (lab) project. More...

#include <mosquitto.h>

Functions
void	mqttClean ()
	End as MQTT client.
int	mqttInit ()
	Initialise as MQTT client. More...
void	mqttPlg01Set (uint8_t const on)
	Switch the plug Plug01. More...
void	mqttPlg02Set (uint8_t const on)
	Switch the plug PLG2. More...
void	mqttPlg03Set (uint8_t const on)
	Switch the plug PLG3. More...
void	mqttPlg04Set (uint8_t const on)
	Switch the plug PLG4. More...

Variables
char	clientId [38]
	MQTT client ID. More...
char	mqttHost [68]
	The MQTT broker URL or name. More...
int	mqttPort
	MQTT port 1883.
char	subTopStPlg01 [14]
	State sub topic of S20 plug Number 01 to 09. More...

Detailed Description

MQTT related definitions for an experimental smart home (lab) project.

Copyright  (c)  2018   Albrecht Weinert
weinert-automation.de      a-weinert.de
 
    /         /      /\
   /         /___   /  \      |
   \        /____\ /____\ |  _|__
    \  /\  / \    /      \|   |
     \/  \/   \__/        \__/|_                                 

Revision history

Rev. 218 07.09.2019 : MQTT excepted from sweetHome2.h
Rev. 219 30.09.2019 : reconstructed after HDD crash

Function Documentation

mqttInit()

int mqttInit

(

)

Initialise as MQTT client.

On success only: subscribe, loop and publish.

Returns

0: success the common mosq is set and usable; else: errno

mqttPlg01Set()

void mqttPlg01Set

(

uint8_t const

on

)

Switch the plug Plug01.

This function publishes the switch command via MQTT to the relay device Plug01, usually a Sonoff S20 with Tasmota.

Parameters

on	switch on when true, else off

mqttPlg02Set()

void mqttPlg02Set

(

uint8_t const

on

)

Switch the plug PLG2.

See mqttPlg01Set

mqttPlg03Set()

void mqttPlg03Set

(

uint8_t const

on

)

Switch the plug PLG3.

See mqttPlg01Set

mqttPlg04Set()

void mqttPlg04Set

(

uint8_t const

on

)

Switch the plug PLG4.

See mqttPlg01Set

Variable Documentation

mqttHost

char mqttHost[68]

extern

The MQTT broker URL or name.

May be set by option –mqttHost meterPi or –mqttBroker 192.168.178.87

default: localhost MQTTBroker (currently localhost !)

subTopStPlg01

char subTopStPlg01[14]

extern

State sub topic of S20 plug Number 01 to 09.

It's preset as plug01/POWER for 01, but the digit at index [5] will be set before each use accordingly.

clientId

char clientId[38]

extern

MQTT client ID.

default value: sweetHomeControl; length: 15; max. length: 36
May be changed before mqttInit().

MQTT client ID.