included showing detection of external temperature sensors in startup and 'autodetect' also re-checks for new external sensors. #238

src/ds18.cpp

@@ -18,23 +18,30 @@ DS18::DS18() {
 }
 
 DS18::~DS18() {
-    if (_wire)
+    if (_wire) {
         delete _wire;
     }
+}
 
 // init
-uint8_t DS18::setup(uint8_t gpio, bool parasite) {
-    uint8_t count;
-
+void DS18::setup(uint8_t gpio, bool parasite) {
     _gpio     = gpio;
     _parasite = (parasite ? 1 : 0);
 
     // OneWire
-    if (_wire)
+    if (_wire) {
         delete _wire;
+    }
     _wire = new OneWire(_gpio);
+}
 
-    // Search devices
+// clear list and scan for devices
+uint8_t DS18::scan() {
+    _devices.clear();
+
+    uint8_t count;
+    
+    // start the search
     count = loadDevices();
 
     // If no devices found check again pulling up the line
@@ -48,6 +55,7 @@ uint8_t DS18::setup(uint8_t gpio, bool parasite) {
     return count;
 }
 
+
 // scan every 2 seconds
 void DS18::loop() {
     static uint32_t last = 0;

src/ds18.h

@@ -36,7 +36,8 @@ class DS18 {
     DS18();
     ~DS18();
 
-    uint8_t setup(uint8_t gpio, bool parasite);
+    void    setup(uint8_t gpio, bool parasite);
+    uint8_t scan();
     void    loop();
     char *  getDeviceString(char * s, unsigned char index);
     float   getValue(unsigned char index);

src/ems-esp.cpp

@@ -100,7 +100,7 @@ static const command_t project_cmds[] PROGMEM = {
     {true, "shower_alert <on | off>", "stop hot water to send 3 cold burst warnings after max shower time is exceeded"},
     {true, "publish_time <seconds>", "set frequency for publishing data to MQTT (0=automatic)"},
     {true, "tx_mode <n>", "changes Tx logic. 1=EMS generic, 2=EMS+, 3=HT3"},
-    {true, "master_thermostat [product id]", "product id to use as the master thermostat. Use no args for list."},
+    {true, "master_thermostat [product id]", "set default thermostat to use. Omit [product id] to show options."},
 
     {false, "info", "show current values deciphered from the EMS messages"},
     {false, "log <n | b | t | s | r | j | v | w [type ID]", "set logging to none, basic, thermostat, solar module, raw, jabber, verbose or watch a specific type"},
@@ -113,7 +113,7 @@ static const command_t project_cmds[] PROGMEM = {
     {false, "refresh", "fetch values from the EMS devices"},
     {false, "devices", "list detected EMS devices"},
     {false, "queue", "show current Tx queue"},
-    {false, "autodetect", "detect EMS devices and attempt to automatically set boiler and thermostat types"},
+    {false, "autodetect", "scan for EMS devices and external sensors"},
     {false, "send XX ...", "send raw telegram data to EMS bus (XX are hex values)"},
     {false, "thermostat read <type ID>", "send read request to the thermostat for heating circuit hc 1-4"},
     {false, "thermostat temp [hc] <degrees>", "set current thermostat temperature"},
@@ -505,6 +505,17 @@ void showInfo() {
     myDebug_P(PSTR("")); // newline
 }
 
+// scan for external Dallas sensors and display
+void scanDallas() {
+    EMSESP_Settings.dallas_sensors = ds18.scan();
+    if (EMSESP_Settings.dallas_sensors) {
+        char buffer[128] = {0};
+        for (uint8_t i = 0; i < EMSESP_Settings.dallas_sensors; i++) {
+            myDebug_P(PSTR("External temperature sensor %s found"), ds18.getDeviceString(buffer, i));
+        }
+    }
+}
+
 // send all dallas sensor values as a JSON package to MQTT
 void publishSensorValues() {
     // don't send if MQTT is connected
@@ -1222,6 +1233,8 @@ void TelnetCommandCallback(uint8_t wc, const char * commandLine) {
     }
 
     if (strcmp(first_cmd, "autodetect") == 0) {
+        myDebug("Scanning for new EMS devices and attached external sensors...");
+        scanDallas();
         ems_clearDeviceList();
         ems_doReadCommand(EMS_TYPE_UBADevices, EMS_Boiler.device_id);
         ok = true;
@@ -1457,15 +1470,19 @@ void MQTTCallback(unsigned int type, const char * topic, const char * message) {
         const char * shower_alert = doc[TOPIC_SHOWER_ALERT];
         if (shower_alert) {
             EMSESP_Settings.shower_alert = ((shower_alert[0] - MYESP_MQTT_PAYLOAD_OFF) == 1);
+            if (ems_getLogging() != EMS_SYS_LOGGING_NONE) {
                 myDebug_P(PSTR("Shower alert has been set to %s"), EMSESP_Settings.shower_alert ? "enabled" : "disabled");
             }
+        }
 
         // assumes payload is "1" or "0"
         const char * shower_timer = doc[TOPIC_SHOWER_TIMER];
         if (shower_timer) {
             EMSESP_Settings.shower_timer = ((shower_timer[0] - MYESP_MQTT_PAYLOAD_OFF) == 1);
+            if (ems_getLogging() != EMS_SYS_LOGGING_NONE) {
                 myDebug_P(PSTR("Shower timer has been set to %s"), EMSESP_Settings.shower_timer ? "enabled" : "disabled");
             }
+        }
 
         return;
     }
@@ -1949,7 +1966,8 @@ void setup() {
     systemCheckTimer.attach(SYSTEMCHECK_TIME, do_systemCheck); // check if EMS is reachable
 
     // check for Dallas sensors
-    EMSESP_Settings.dallas_sensors = ds18.setup(EMSESP_Settings.dallas_gpio, EMSESP_Settings.dallas_parasite); // returns #sensors
+    ds18.setup(EMSESP_Settings.dallas_gpio, EMSESP_Settings.dallas_parasite);
+    scanDallas();
 }
 
 //

src/ems.cpp

@@ -2125,6 +2125,17 @@ void ems_printDevices() {
                 have_unknowns = true;
             }
 
+            if ((it->device_type == EMS_DEVICE_TYPE_THERMOSTAT) && (EMS_Sys_Status.emsMasterThermostat == it->product_id)) {
+                myDebug_P(PSTR(" %s: %s%s%s (DeviceID:0x%02X ProductID:%d Version:%s) [master]"),
+                          device_type,
+                          COLOR_BOLD_ON,
+                          device_string,
+                          COLOR_BOLD_OFF,
+                          it->device_id,
+                          it->product_id,
+                          it->version);
+
+            } else {
                 myDebug_P(PSTR(" %s: %s%s%s (DeviceID:0x%02X ProductID:%d Version:%s)"),
                           device_type,
                           COLOR_BOLD_ON,
@@ -2134,12 +2145,11 @@ void ems_printDevices() {
                           it->product_id,
                           it->version);
             }
-
+        }
         myDebug_P(PSTR("")); // newline
 
         if (have_unknowns) {
-            myDebug_P(
-                PSTR("You have a device is that is not yet known by EMS-ESP. Please report this as a GitHub issue so we can expand the EMS device library."));
+            myDebug_P(PSTR("One or more devices are not recognized by EMS-ESP. Please report this in GitHub."));
         }
     } else {
         myDebug_P(PSTR("No were devices recognized. This may be because Tx is disabled or failing."));