[RELEASE] Nissan Leaf integration leaf2mqtt

jean.vancaloen · July 3, 2024, 12:36pm

Hello everyone,

I created a driver to get my Nissan Leaf battery level.
Plenty of growth possibilities, but better start simple.

The easy way requires some knowledge and possibility to run containers. The leaf2mqtt container polls the car and populates a topic on an mqtt bus. The driver gets the data from the mqtt bus.

Installation

need an MQTT bus (ie. eclipse-mosquitto docker container)
run leaf2mqtt container - see GitHub - kamiKAC/leaf2mqtt: Pull in data from the Nissan Connect platform for the LEAF and publish over MQTT
add the driver to Hubitat
create a new device with the driver
configure mqtt URI, username and password in the preferences
you're done!

Source

github.com

jvcaloen/hubitat/blob/main/Drivers/leaf2mqtt.groovy

// Hubitat driver for reading the battery status from Nissan Leaf 
// this could be easily adapted to any vehicle that is compatible with the komereon platform and leaf2mqtt
//
// Requirements
// - Hubitat hub (duh ;) )
// - mqtt bus (eg. mosquitto container https://hub.docker.com/_/eclipse-mosquitto/)
// - leaf2mqtt container running (see https://github.com/kamiKAC/leaf2mqtt) - leave default "leaf" main topic
// - this driver
// - enter mqtt details in 
//
// Welcome to copy and use at your own risk. 
//
// 2024-07-03 - v1 - Jean van Caloen simple battery percentage & last update time in state
//

metadata {
   definition (name: "Nissan Leaf Battery", namespace: "jvcaloen", author: "Jean") {
      capability "Battery"
      capability "PresenceSensor" // present means connected to mqtt
      capability "Initialize" // button to (re)connect to mqtt

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Hope it helps others

Jean.

jean.vancaloen · November 24, 2024, 7:03am

v2 code update

Due to mqtt connection losses, I made a couple changes:

auto reconnect
keepalive publishing a timestamp to mqtt