New Limit engine for Wifi module.

api.yml

@@ -241,8 +241,6 @@ paths:
                   state: active
                   charge_current: 0
                   max_current: 0
-                  energy_limit: 0
-                  time_limit: 0
                   auto_release: true
       responses:
         '200':
@@ -526,6 +524,100 @@ paths:
         name: index
         in: path
         required: true
+  /limit:
+    get:
+      summary: Get charge limit
+      description: This will return the limit type, value and auto_release (true|false) defined if there's one
+      responses:
+        '200':
+          description: Limit properties
+          content:
+            application/json:
+              schema:
+                $ref: ./models/Limit.yaml
+        '404':
+          description: No limit
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  msg:
+                    type: string
+                    description: No limit
+      operationId: limit_get
+      tags:
+        - Limit
+    post:
+      summary: Set charge limit
+      description: This will set the limit type, value and auto_release (true|false)
+      responses:
+        '200':
+          description: Limit set
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  msg:
+                    type: string
+                    description: created
+        '500':
+            description: Failed to parse data
+            content:
+              application/json:
+                schema:
+                  type: object
+                  properties:
+                    msg:
+                      type: string
+                      description: Failed to parse JSON
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: ./models/Limit.yaml
+      operationId: limit_set
+      tags:
+        - Limit
+    delete:
+        summary: Get charge limit
+        description: This will clear current limit
+        responses:
+          '200':
+            description: Clear Limit ok
+            content:
+               application/json:
+                schema:
+                  type: object
+                  properties:
+                    msg:
+                      type: string
+                      description: Deleted
+          '404':
+            description: No limit
+            content:
+              application/json:
+                schema:
+                  type: object
+                  properties:
+                    msg:
+                      type: string
+                      description: No limit to clear
+          '500':
+            description: Failed to clear limit
+            content:
+              application/json:
+                schema:
+                  type: object
+                  properties:
+                    msg:
+                      type: string
+                      description: Failed to clear limit
+        operationId: limit_clear
+        tags:
+          - Limit
+
   /tesla/vehicles:
     get:
       summary: Get Tesla vehicle list

models/Config.yaml

@@ -34,6 +34,8 @@ x-examples:
     hostname: openevse-a7d4
     sntp_hostname: pool.ntp.org
     time_zone: 'Europe/London|GMT0BST,M3.5.0/1,M10.5.0'
+    limit_default_type: none
+    limit_default_value": 0
     emoncms_server: 'https://emoncms.org'
     emoncms_node: openevse-a7d4
     emoncms_apikey: _DUMMY_PASSWORD
@@ -86,6 +88,7 @@ x-examples:
     ocpp_auth_offline: true
     mqtt_protocol: mqtt
     charge_mode: fast
+    is_threephase: false
 x-tags:
   - Config
 properties:
@@ -177,6 +180,12 @@ properties:
   time_zone:
     type: string
     minLength: 1
+  limit_default_type:
+    type: string
+    minLength: 1
+  limit_default_value:
+    type: integer
+    minLength: 1
   emoncms_server:
     type: string
     minLength: 1
@@ -295,3 +304,5 @@ properties:
     default: 600
     description: |
       The maximum number of seconds to randomly add/subtract from the a scheduled charge start time, eg a value of 600 will adjust the start time my +/- 10 minutes. This is to help prevent large syncrinised loads when multiple verchiles start charging at the same time.
+  is_threephase: 
+    type: boolean

models/Limit.yaml

@@ -0,0 +1,15 @@
+title: EVSE limit
+allOf:
+  - type: object
+    properties:
+      type:
+        type: string
+        description: 'Limit type: time (minutes), energy (watts/h), soc (%), range (km or miles)'
+      value:
+        type: integer
+        description: 'The limit value'
+      auto_release:
+        type: bool
+        description: 'Release current limit when car is disconnected. (default: true)'
+x-tags:
+  - Limit

models/Properties.yaml

@@ -14,22 +14,6 @@ properties:
     type: integer
     minimum: 0
     description: Dynamically alter the max current while still allowing other claims to very the current via `charge_current` that can not exceede this value. This is primerialy designed for load sharing situations while still allowing things like PV divert to work so the charge current is the minimum of `charge_current` <= `max_current` <= configured soft limit <= hard coded limit
-  energy_limit:
-    type: integer
-    minimum: 0
-    format: int32
-    description: |-
-      Stop the charge after `energy_limit` Wh of energy have been transfered.
-
-      > Note:  Not currently implemented
-  time_limit:
-    type: integer
-    minimum: 0
-    format: int32
-    description: |-
-      Stop the charge after the duration of the charging session has exceeded `time_limit` seconds
-
-      > Note:  Not currently implemented
   auto_release:
     type: boolean
     description: |

models/Status.yaml

@@ -154,3 +154,9 @@ properties:
   offset:
     type: string
     description: The current timezone
+  has_limit:
+    type: boolean
+    description: A limit has been set
+  limit_version:
+    type: integer
+    description: /limit endpoint current version

platformio.ini

@@ -60,6 +60,7 @@ debug_flags =
   #-D ENABLE_DEBUG_MQTT
   #-D ENABLE_DEBUG_EMONCMS
   #-D ENABLE_DEBUG_TESLA_CLIENT
+  #-D ENABLE_DEBUG_LIMIT
   #-D ENABLE_PROFILE
 src_build_flags =
 #  -D ARDUINOJSON_USE_LONG_LONG

src/app_config.cpp

@@ -8,6 +8,7 @@
 #include "input.h"
 #include "LedManagerTask.h"
 #include "current_shaper.h"
+#include "limit.h"
 
 #include "app_config.h"
 #include "app_config_mqtt.h"
@@ -41,6 +42,10 @@ String www_password;
 String esp_hostname;
 String sntp_hostname;
 
+// LIMIT Settings
+String limit_default_type;
+uint32_t limit_default_value;
+
 // EMONCMS SERVER strings
 String emoncms_server;
 String emoncms_node;
@@ -132,6 +137,10 @@ ConfigOpt *opts[] =
 // Time
   new ConfigOptDefenition<String>(time_zone, "", "time_zone", "tz"),
 
+// Limit
+  new ConfigOptDefenition<String>(limit_default_type, {}, "limit_default_type", "ldt"),
+  new ConfigOptDefenition<uint32_t>(limit_default_value, {}, "limit_default_value", "ldv"),
+
 // EMONCMS SERVER strings
   new ConfigOptDefenition<String>(emoncms_server, "https://data.openevse.com/emoncms", "emoncms_server", "es"),
   new ConfigOptDefenition<String>(emoncms_node, esp_hostname, "emoncms_node", "en"),
@@ -287,6 +296,21 @@ void config_changed(String name)
   } else if(name == "led_brightness") {
     ledManager.setBrightness(led_brightness);
 #endif
+  } else if(name.startsWith("limit_default_")) {
+    LimitProperties limitprops;
+    LimitType limitType;
+    limitType.fromString(limit_default_type.c_str());
+    limitprops.setType(limitType);
+    limitprops.setValue(limit_default_value);
+    limitprops.setAutoRelease(false);
+    if (limitType == LimitType::None) {
+      uint32_t val = 0;
+      config_set("limit_default_value", val);
+      config_commit();
+      limit.clear();
+    }
+    else 
+      limit.set(limitprops);
   }
 }
 

src/app_config.h

@@ -28,6 +28,10 @@ extern String esp_hostname;
 extern String esp_hostname_default;
 extern String sntp_hostname;
 
+// LIMIT Settings
+extern String limit_default_type;
+extern uint32_t limit_default_value;
+
 // EMONCMS SERVER strings
 extern String emoncms_server;
 extern String emoncms_node;