demos/high_res: Add HMI evCharge data publish through MQTT

On each callback of change in ev charging progress, call publish function to transmit message on relevant topic via MQTT. Signed-off-by: Divyansh Mittal <[email protected]>
TexasInstruments · Jan 24, 2025 · f526522 · f526522
1 parent 067c5a3
commit f526522
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Showing 2 changed files with 34 additions and 1 deletion.
diff --git a/demos/high_res/adc.c b/demos/high_res/adc.c
@@ -106,7 +106,34 @@ void publish_sensor_data(float temp)
     rc = mosquitto_publish(mosq, NULL, "SmartHome/temp", strlen(payload), payload, 1, false);
     if(rc != MOSQ_ERR_SUCCESS){                                        
 		fprintf(stderr, "Error publishing: %s\n", mosquitto_strerror(rc));
-    }                              
+    }
+}
+
+void publish_evCharge_data(int ev_charge)                            
+{                                                                                     
+    if(!flag_is_connected){
+		return;
+	}
+	char payload[20];                                                   
+    int rc;                 
+
+    /* Print it to a string for easy human reading - payload format is highly
+        * application dependent. */                                                  
+    snprintf(payload, sizeof(payload), "%d", ev_charge);    
+
+    /* Publish the message                  
+	* mosq - our client instance                                                 
+	* *mid = NULL - we don't want to know what the message id for this message is
+	* topic = "example/temperature" - the topic on which this message will be published
+	* payloadlen = strlen(payload) - the length of our payload in bytes
+	* payload - the actual payload                                    
+	* qos = 1 - publish with QoS 1 for this example
+	* retain = false - do not use the retained message feature for this message  
+	*/  
+	rc = mosquitto_publish(mosq, NULL, "SmartHome/evCharge", strlen(payload), payload, 1, false);
+    if(rc != MOSQ_ERR_SUCCESS){                                        
+		fprintf(stderr, "Error publishing: %s\n", mosquitto_strerror(rc));
+    }                                    
 }
 
 int mqtt_temp_pub_init(){

diff --git a/demos/high_res/lv_demo_high_res_app_ev_charging.c b/demos/high_res/lv_demo_high_res_app_ev_charging.c
@@ -20,6 +20,11 @@
  *      DEFINES
  *********************/
 
+/*********************
+ *  GLOBAL VARIABLE
+ *********************/
+extern void publish_evCharge_data(int);
+
 /**********************
  *      TYPEDEFS
  **********************/
@@ -210,6 +215,7 @@ static void anim_exec_cb(void * var, int32_t v)
     lv_demo_high_res_ctx_t * c = lv_obj_get_user_data(base_obj);
 
     lv_subject_set_int(&c->ev_charging_progress, v);
+    publish_evCharge_data(lv_map(lv_subject_get_int(&c->ev_charging_progress), 0, EV_CHARGING_RANGE_END, 0, 100));
 
     if(c->ev_charging_bg_cont) {
         anim_state_t * anim_state = lv_obj_get_user_data(c->ev_charging_bg_cont);