first poc for power set via mqtt

.gitignore

@@ -17,3 +17,4 @@ tools/esp8266/binaries
 *.db
 *.suo
 *.ipch
+tools/esp8266/.vscode/extensions.json

tools/esp8266/defines.h

@@ -53,6 +53,7 @@ typedef struct {
 #define INV_CH_CH_NAME_LEN  MAX_NUM_INVERTERS * MAX_NAME_LENGTH * 4 // (4 channels)
 #define INV_INTERVAL_LEN    2                                       // uint16_t
 #define INV_MAX_RTRY_LEN    1                                       // uint8_t
+#define INV_PWR_LIM_LEN     MAX_NUM_INVERTERS * 2                   // uint16_t 
 
 #define PINOUT_LEN          3 // 3 pins: CS, CE, IRQ
 
@@ -89,8 +90,9 @@ typedef struct {
 #define ADDR_INV_CH_NAME    ADDR_INV_CH_PWR    + INV_CH_CH_PWR_LEN
 #define ADDR_INV_INTERVAL   ADDR_INV_CH_NAME   + INV_CH_CH_NAME_LEN
 #define ADDR_INV_MAX_RTRY   ADDR_INV_INTERVAL  + INV_INTERVAL_LEN
+#define ADDR_INV_PWR_LIM    ADDR_INV_MAX_RTRY  + INV_MAX_RTRY_LEN
 
-#define ADDR_MQTT_ADDR      ADDR_INV_MAX_RTRY  + INV_MAX_RTRY_LEN
+#define ADDR_MQTT_ADDR      ADDR_INV_PWR_LIM   + INV_PWR_LIM_LEN
 #define ADDR_MQTT_USER      ADDR_MQTT_ADDR     + MQTT_ADDR_LEN
 #define ADDR_MQTT_PWD       ADDR_MQTT_USER     + MQTT_USER_LEN
 #define ADDR_MQTT_TOPIC     ADDR_MQTT_PWD      + MQTT_PWD_LEN

tools/esp8266/hmInverter.h

@@ -69,6 +69,8 @@ class Inverter {
         uint8_t       type;     // integer which refers to inverter type
         byteAssign_t* assign;   // type of inverter
         uint8_t       listLen;  // length of assignments
+        uint16_t      powerLimit;  // limit power output
+        bool          powerLimitChange; // true if change needed
         serial_u      serial;   // serial number as on barcode
         serial_u      radioId;  // id converted to modbus
         uint8_t       channels; // number of PV channels (1-4)
@@ -79,6 +81,8 @@ class Inverter {
 
         Inverter() {
             ts = 0;
+            powerLimit = -1; // 65535 W Limit -> unlimited
+            powerLimitChange = false;
         }
 
         ~Inverter() {

tools/esp8266/mqtt.h

@@ -12,6 +12,8 @@
 
 class mqtt {
     public:
+        PubSubClient *mClient;
+
         mqtt() {
             mClient     = new PubSubClient(mEspClient);
             mAddressSet = false;
@@ -35,6 +37,10 @@ class mqtt {
             snprintf(mTopic, MQTT_TOPIC_LEN, "%s", topic);
         }
 
+        void setCallback(void (*func)(const char* topic, byte* payload, unsigned int length)){
+            mClient->setCallback(func);
+        }
+
         void sendMsg(const char *topic, const char *msg) {
             //DPRINTLN(DBG_VERBOSE, F("mqtt.h:sendMsg"));
             char top[64];
@@ -79,24 +85,24 @@ class mqtt {
 
         void loop() {
             //DPRINT(F("m"));
-            //if(!mClient->connected())
-            //    reconnect();
+            if(!mClient->connected())
+                reconnect();
             mClient->loop();
         }
 
     private:
         void reconnect(void) {
-            //DPRINTLN(DBG_VERBOSE, F("mqtt.h:reconnect"));
+            DPRINTLN(DBG_INFO, F("mqtt.h:reconnect"));
             if(!mClient->connected()) {
                 if((strlen(mUser) > 0) && (strlen(mPwd) > 0))
                     mClient->connect(DEF_DEVICE_NAME, mUser, mPwd);
                 else
                     mClient->connect(DEF_DEVICE_NAME);
             }
+            mClient->subscribe("home/huette/powerset");
         }
 
         WiFiClient mEspClient;
-        PubSubClient *mClient;
         
         bool mAddressSet;
         uint16_t mPort;

tools/esp8266/platformio.ini

@@ -28,7 +28,6 @@ framework = arduino
 board = nodemcuv2
 monitor_speed = 115200
 board_build.f_cpu = 80000000L
-upload_port = /dev/ttyUSB0
 
 lib_deps =
   nrf24/RF24@1.4.2