# Silla Prism Solar custom integration

This repository contains a custom integration to integrate a Silla Prism EVSE inside HomeAssistant

Installation

Prerequisites: A working MQTT server.

1. Configure the Prism EVSE to work with your MQTT server has shown in manual.
2. Configure and enable the MQTT integration for HomeAssistant
3. Install the custom integration from this repository

Usage

1. Add integration Silla Prism using the dashboard

2. Keep note of base path for all Prism topics

   

3. When asked for connection settings set the the base path for all Prism topics. For now it is important to leave a / at the end of the topics as shown in the following picture)

Entities

Entity ID	Type	Description	Unit
silla_prism_online	BinarySensor	Sensor to find if Prism is connected or not
silla_prism_current_state	Sensor	Current state of Prism	"idle", "waiting", "charging", "pause"
silla_prism_power_grid_voltage	Sensor	Measured voltage from grid	V
silla_prism_output_power	Sensor	Power provided to the charging port	W
silla_prism_output_current	Sensor	Current provided to the charging port	mA
silla_prism_output_car_current	Sensor	Current driven by the car	A
silla_prism_current_set_by_user	Sensor	Current limit set by user	A
silla_prism_session_time	Sensor	Duration of the current session	s
silla_prism_session_output_energy	Sensor	Energy provided to the charging port during the current session	Wh
silla_prism_total_output_energy	Sensor	Total energy	Wh
?/1/error	(TODO)	Error code
silla_prism_current_port_mode	Sensor	Current port mode	solar,normal,paused
silla_prism_input_grid_power	Sensor	Input power from grid	W
silla_prism_set_max_current	Number	Set the user current limit	A
silla_prism_set_current_limit	Number	Set the current limit	A
silla_prism_set_mode	Select	Set current port mode	solar,normal,paused
silla_prism_touch_sigle	BinarySensor	Goes on for 1 second after a single touch gesture	On,Off
silla_prism_touch_double	BinarySensor	Goes on for 1 second after a double touch gesture	On,Off
silla_prism_touch_long	BinarySensor	Goes on for 1 second after a long touch gesture	On,Off

Computed Entities

Computed entities are not directly measured from Prism but are derived from other measurements.

Entity ID	Type	Description	Unit
silla_prism_input_grid_energy	Sensor	Total energy taken from grid	Wh

Charger Card Integragtion

It's possible to configure the EV Charger Card using the configuration example provided in this repository

Touch button and Automations

This are some example automations for the touch button events

Start charge after single touch event if Prism is in pause state

alias: Avvia ricarica dopo pressione pulsante
description: Avvia ricarica dopo pressione pulsante
trigger:
  - platform: state
    entity_id:
      - binary_sensor.silla_prism_touch_sigle
    from: "off"
    to: "on"
condition:
  - condition: state
    entity_id: sensor.silla_prism_current_state
    state: pause
action:
  - service: select.set_option
    data:
      entity_id: select.silla_prism_set_mode
      option: normal
mode: single

Stop charge after single touch event if Prism is in charging state

alias: Interrompi ricarica dopo pressione pulsante
description: Interrompi ricarica dopo pressione pulsante
trigger:
  - platform: state
    entity_id:
      - binary_sensor.silla_prism_touch_sigle
    from: "off"
    to: "on"
condition:
  - condition: state
    entity_id: sensor.silla_prism_current_state
    state: charging
action:
  - service: select.set_option
    data:
      entity_id: select.silla_prism_set_mode
      option: paused
mode: single