Cours:InfoEmbarquee

Séances :

• Analyse de la consommation d'un µcontroleur
• Analyse de la latence (et jitter)
• Thread avec Qt
• mqtt : créer un capteur/actionneur sur HomeAssistant
• installation d'une distribution Linux

script shell

mqtt

HA mqtt sensor

• https://www.home-assistant.io/integrations/sensor/
• https://github.com/home-assistant/core/blob/dev/homeassistant/const.py#L489

/usr/local/bin/createHaSensor :
#!/bin/bash

echo "name : $1"
echo "device class : $2"
echo "unit : $3"

topic="homeassistant/sensor/$1/config"
payload="{\"name\": \"$1\", \
          \"unique_id\": \"$1\", \
          \"state_topic\": \"homeassistant/sensor/$1/state\", \
          \"device_class\":\"$2\", \
          \"unit_of_measurement\":\"$3\" \
         }"


mosquitto_pub -t "$topic" -m "$payload" -h 192.168.0.7


/usr/local/bin/deleteHaSensor :
#!/bin/bash

echo "name : $1"
echo "device class : $2"
echo "unit : $3"

topic="homeassistant/sensor/$1/config"

mosquitto_pub -t "$topic" -m "" -h 192.168.0.7


/usr/local/bin/publishHaSensor :
#!/bin/bash

echo "name : $1"
echo "valeur : $2"

topic="homeassistant/sensor/$1/state"
payload="{\"name\": \"$1\", \
          \"unique_id\": \"$1\", \
          \"state_topic\": \"homeassistant/sensor/$1/state\", \
          \"device_class\":\"$2\", \
          \"unit_of_measurement\":\"$4\" \
         }"


mosquitto_pub -t "$topic" -m "$2" -h 192.168.0.7

Exemples :

• createHaSensor testCreate battery %