esp

www/docs/.vitepress/config.ts

@@ -115,6 +115,7 @@ export default defineConfig({
           { text: "Settings", link: "/examples/lovelace-settings" },
           { text: "Automations", link: "/examples/a-mode" },
           { text: "Templates", link: "/examples/templates" },
+          { text: "ESP", link: "/examples/esp" },
         ],
       },
     ],

www/docs/examples/esp.md

@@ -0,0 +1,72 @@
+# ESP integration
+
+The ESP integration uses a combination of mysensors + Frontend
+
+Init your ESP sensor with the following **mysensors.py** entry
+
+```python
+try:
+    from ha_addon_sunsynk_multi.esp import ESP
+    ESP(
+        api_key="xxxxxxxx-xxxxxxxx-xxxxxxxx-xxxxxxxx",
+        area_id="jhbcitypower2-2-victorypark",
+        ha_prefix="eskom_vp",
+    )
+except ImportError:
+    pass
+```
+
+The following should be saved in you HA config folder `/config/custom_templates/loadshed.jinja`
+
+```jinja
+{% macro loadshed_md(espnext) %}
+
+{%- set active = (as_timestamp(states(espnext))<=as_timestamp(now())) | bool %}
+{%- set stage = state_attr(espnext, "note") %}
+{%- set t0 = state_attr(espnext, "start") | as_timestamp | int %}
+{%- set t1 = state_attr(espnext, "end") | as_timestamp | int %}
+{%- set t0_min = (t0|int - as_timestamp(now()))|int // 60 %}
+{%- set t1_min = (t1|int - as_timestamp(now()))|int // 60 %}
+
+{%- if stage %}
+{%- if not bool(active) %}
+{%- set mins = t0_min % 60 %}
+{%- set hrs = t0_min // 60 %}
+{%- set alert = "Load Shedding starts in {h}:{m:02d} ({next})".format(m=mins, h=hrs, next=t0 |
+timestamp_custom("%H:%M", True)) %}
+{%- if hrs>12 %}
+<ha-alert alert-type="success">{{ alert }}</ha-alert>
+{%- elif hrs > 1 %}
+<ha-alert alert-type="warning">{{ alert }}</ha-alert>
+{%- else %}
+<ha-alert alert-type="error">{{ alert }}</ha-alert>
+{%- endif %}
+{%- else %}
+{%- set mins = t1_min % 60 %}
+{%- set hrs = t1_min // 60 %}
+{%- set alert = "Load Shedding ends in {h}:{m:02d} ({next})".format(m=mins, h=hrs, next=t1 |
+timestamp_custom("%H:%M", True)) %}
+<ha-alert alert-type="error">{{ alert }}</ha-alert>
+{%- endif %}
+{%- else %}
+{%- set mins = t0_min % 60 %}
+{%- set hrs = t0_min // 60 % 24 %}
+{%- set days = t0_min // 1440 %}
+{%- if (t0 == 0 or t1 == 0) %}
+{%- set alert = "No Load Shedding" %}
+{%- else %}
+{%- set alert = "Stage {stage} starts in {d}d {h:02d}:{m:02d} ({next})".format(stage=stage, d=days, m=mins, h=hrs,
+next=as_timestamp(start_time) | timestamp_custom("%H:%M", True)) %}
+{%- endif %}
+<ha-alert alert-type="success">{{ alert }}</ha-alert>
+{%- endif %}
+
+{% endmacro %}
+```
+
+You can now add this card to your frontend to create a status of loadshedding
+
+```yaml
+  - type: markdown
+    content: '{% from "loadshed.jinja" import loadshed_md %} {{ loadshed_md("sensor.eskom_vp_next") }}'
+```