RN8209 energy sensor support with watt, voltage and current. (#1337)

Co-authored-by: h2zero <powellperalta@gmail.com>

main/ZsensorRN8209.ino

@@ -0,0 +1,83 @@
+/*  
+  OpenMQTTGateway Addon  - ESP8266, ESP32 or Arduino program for home automation 
+
+   Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal  and a MQTT broker 
+   Send and receiving command by MQTT
+ 
+    RN8209 reading Addon
+    
+    Contributors:
+    - 1technophile
+  
+    This file is part of OpenMQTTGateway.
+    
+    OpenMQTTGateway is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenMQTTGateway is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifdef ZsensorRN8209
+
+#  include "ArduinoJson.h"
+#  include "driver/uart.h"
+#  include "rn8209_flash.h"
+#  include "rn8209c_user.h"
+
+extern "C" bool init_8209c_interface();
+
+StaticJsonDocument<JSON_MSG_BUFFER> doc;
+
+void rn8209_loop(void* mode) {
+  if (!ProcessLock) {
+    uint32_t voltage;
+    int32_t current;
+    int32_t power;
+
+    while (1) {
+      rn8209c_read_voltage(&voltage);
+      uint8_t ret = rn8209c_read_emu_status();
+      if (ret) {
+        uint32_t temp_current = 0;
+        uint32_t temp_power = 0;
+        rn8209c_read_current(phase_A, &temp_current);
+        rn8209c_read_power(phase_A, &temp_power);
+        if (ret == 1) {
+          current = temp_current;
+          power = temp_power;
+        } else {
+          current = (int32_t)temp_current * (-1);
+          power = (int32_t)temp_power * (-1);
+        }
+      }
+
+      JsonObject data = doc.to<JsonObject>();
+      data["volt"] = (float)voltage / 1000.0;
+      data["current"] = (float)current / 10000.0;
+      data["power"] = (float)power / 10000.0;
+      pub(subjectRN8209toMQTT, data);
+      delay(TimeBetweenReadingRN8209);
+    }
+  } else {
+    Log.trace(F("RN8209 reading canceled by processLock" CR));
+  }
+}
+
+void setupRN8209() {
+  STU_8209C cal = {0};
+  cal.Ku = RN8209_KU;
+  cal.Kia = RN8209_KIA;
+  cal.EC = RN8209_EC;
+  set_user_param(cal);
+  init_8209c_interface();
+  xTaskCreate(rn8209_loop, "rn8209_loop", RN8209_TASK_STACK_SIZE, NULL, RN8209_TASK_PRIO, NULL);
+}
+
+#endif // ZsensorRN8209