relais support

src/pv_controller/RelaisPublish.py

@@ -0,0 +1,36 @@
+from threading import Event
+from loguru import logger
+from MqttBase import AbstractMqttPublisher
+import json
+import datetime
+
+
+class RelaisPublish(AbstractMqttPublisher):
+    def __init__(self, config, modbusHandler):
+        super().__init__(config)
+        self.modbusHandler = modbusHandler
+
+    def localLoop(self):
+        cnt = 0
+        while not self.killBill:
+            cnt += 1
+            topic = self.config["relaisPublishTopic"]
+            payload = str(cnt)
+
+            try:
+                payload = {}
+                payload['status'] = "Error"
+                payload['timestamp'] = datetime.datetime.isoformat(datetime.datetime.utcnow())
+                v = self.modbusHandler.readHoldingRegister(1, 1)
+                logger.debug(f"{v}")
+                payload['state'] = 'Off' if v[0] == 0 else 'On'
+                payload['status'] = "Ok"
+            except Exception as e:
+                logger.error(f"Caught exception: {str(e)}")
+
+            payload['cnt'] = cnt
+            payloadStr = json.dumps(payload)
+            self.client.publish(topic, payloadStr)
+            logger.info(f"mqtt message sent: {topic} -> {payloadStr}")
+
+            self.killEvent.wait(timeout=float(self.config["relaisPublishPeriod"]))