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A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

Display different Roomtemperature on MagicMirror

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  • X Offline
    Xilef @sdetweil
    last edited by Nov 26, 2022, 8:25 PM

    @sdetweil thx

    W 1 Reply Last reply Nov 26, 2022, 9:26 PM Reply Quote 0
    • W Offline
      wishmaster270 Module Developer @Xilef
      last edited by wishmaster270 Nov 26, 2022, 9:28 PM Nov 26, 2022, 9:26 PM

      @Xilef
      ESP8266 is a good choice. I prefer ESP32 cause it has more power but does not need that much more energy. You have a lot more GPIOs with a ESP32 than a with the ESP8266.

      I can provide you a ESP32 sketch which is ready to flash and only needs the Wifi-SSID, Wifi-Password and the MQTT parameters configured.
      I use the Arduino IDE to flash the boards.

      X 1 Reply Last reply Nov 26, 2022, 10:41 PM Reply Quote 0
      • X Offline
        Xilef @wishmaster270
        last edited by Nov 26, 2022, 10:41 PM

        @wishmaster270 thanks

        As I understand it, something like this is my target:
        a6d84a5f-2102-41ac-9e30-c5d3bfc07b02-grafik.png

        And i would need:

        • ESP32
        • DHT11-Sensor Problem with this Sensor is the accuracy i think, but if it works I can swap them out I guess
        • BreadBoard

        And as Powersupply something with 5V and 1-1,5A right?

        I would probably do it like this guy on youtube https://www.youtube.com/watch?v=ebJpXs2-WgM&list=PLUwa0e4GQGhS6KCSbLAQGog4_Z7eIWOm3&index=3

        And from the ESP32-Website the MagicMirror should be able to read the data and display it

        W 1 Reply Last reply Nov 26, 2022, 10:46 PM Reply Quote 0
        • W Offline
          wishmaster270 Module Developer @Xilef
          last edited by wishmaster270 Nov 26, 2022, 10:51 PM Nov 26, 2022, 10:46 PM

          @Xilef
          You need a ESP32 ( I use a D1 Mini but nearly everyone should be fine)
          You need a Temperature and Humidity Sensor (BME280 and HTU21 are a lot more accurate and use I2c to communicate with the controller.
          A Power supply with 5V 1A should be more than enough.

          That’s how I display my values…
          Screenshot_20221126_234807_bVNC Pro.jpg

          The first three are ESP32 the others my thermostats.

          J X 2 Replies Last reply Nov 27, 2022, 8:16 AM Reply Quote 0
          • J Offline
            JerryP @wishmaster270
            last edited by Nov 27, 2022, 8:16 AM

            @wishmaster270

            nice…

            1 Reply Last reply Reply Quote 0
            • X Offline
              Xilef @wishmaster270
              last edited by Nov 27, 2022, 9:21 AM

              @wishmaster270 Thats exactly what i had in mind

              The BME280 sensors on amazon are a litte expensive so Im think Im order 3 form this shop They have 5 Pins but I think this will work to, on Aliexpress its even cheaper but i have no experience with the shop, and 1-3€ difference is ok i guess

              And I wanted to ask what power supply you use e.g. just a cell phone charger?
              I think im gona go with this one and hope that it doesnt explode

              So if I have everything right this is my shopping list:
              ESP32
              BME280
              Power Supply
              BreadBoard

              And then I just have to figure out the programming

              X W 2 Replies Last reply Nov 27, 2022, 10:25 AM Reply Quote 0
              • X Offline
                Xilef @Xilef
                last edited by Nov 27, 2022, 10:25 AM

                Edit: With Power Supply i mean this one: https://www.amazon.de/gp/product/B08LMFBV55/ref=ox_sc_act_title_2?smid=A1XVC08L2WVJCV&psc=1

                1 Reply Last reply Reply Quote 0
                • W Offline
                  wishmaster270 Module Developer @Xilef
                  last edited by Nov 27, 2022, 10:36 AM

                  @Xilef Hi, the list sounds good. I use old mobile chargers to power the boards. I have heard that some had problems with mobile chargers but I had no problems for years now.

                  1 Reply Last reply Reply Quote 0
                  • X Offline
                    Xilef
                    last edited by Dec 1, 2022, 5:57 PM

                    Hey im back @wishmaster270

                    my parts arrived, and after 5 hours of Troubleshooting i was able to achieve this: (with the help of this tutorial)
                    70a039b8-932a-412c-8365-5ccfd77ccd60-image.png

                    Now i need just a little bit help to display the Temperature and Humidity on my mirror

                    W 1 Reply Last reply Dec 1, 2022, 6:27 PM Reply Quote 0
                    • W Offline
                      wishmaster270 Module Developer @Xilef
                      last edited by wishmaster270 Dec 1, 2022, 6:43 PM Dec 1, 2022, 6:27 PM

                      @Xilef
                      Hi,
                      thats great news.
                      The screenshot shows that you setup the ESP32 and the sensor correctly.
                      The main problem is that the ESP now displays a webpage.
                      There are two possible ways now. Either you embed the webpage (as it is) into the mirror with a module like MMM-EmbedURL or to get the ESP to display the data machine readable.
                      Maybe the sketch you flashed to the ESP already contains a way to read the data in a different format? Which one did you use?

                      Edit: I think it is this one, am i right? Then there is no easy way.
                      I think i can provide a sketch that is more “mirror friendly” but you will need to set a static IP for the ESP. Is this ok for you?

                      You will need to change to your needs:

                      • ##ADD_WIFI_SSID_HERE
                      • ##ADD_WIFI_PASSWORD_HERE
                      • IPAddress local_IP(192, 168, 0, 2);
                      • IPAddress gateway(192, 168, 0, 1);
                      • IPAddress subnet(255, 255, 255, 0);
                      • IPAddress primaryDNS(192, 168, 0, 1);
                      #include <WiFi.h>
                      #include <Wire.h>
                      #include <Adafruit_Sensor.h>
                      #include <Adafruit_BME280.h>
                      
                      const char* ssid     = "##ADD_WIFI_SSID_HERE";
                      const char* password = "##ADD_WIFI_PASSWORD_HERE";
                      
                      //ENTER STATIC IP OF THE ESP32 BOARD HERE
                      IPAddress local_IP(192, 168, 0, 2);
                      IPAddress gateway(192, 168, 0, 1);
                      IPAddress subnet(255, 255, 255, 0);
                      IPAddress primaryDNS(192, 168, 0, 1);
                      IPAddress secondaryDNS(8, 8, 8, 8);
                      
                      Adafruit_BME280 bme;
                      
                      WiFiServer server(80);
                      
                      void setup()
                      {
                        Wire.begin();
                        Serial.begin(115200);
                      
                        if (!WiFi.config(local_IP, gateway, subnet, primaryDNS, secondaryDNS)) {
                          Serial.println("STA Failed to configure");
                        }
                      
                        Serial.print("Connecting to ");
                        Serial.println(ssid);
                      
                        WiFi.begin(ssid, password);
                      
                        while (WiFi.status() != WL_CONNECTED) {
                          delay(500);
                          Serial.print(".");
                        }
                      
                        Serial.println("");
                        Serial.println("WiFi connected!");
                        Serial.print("IP address: ");
                        Serial.println(WiFi.localIP());
                        Serial.print("ESP Mac Address: ");
                        Serial.println(WiFi.macAddress());
                        Serial.print("Subnet Mask: ");
                        Serial.println(WiFi.subnetMask());
                        Serial.print("Gateway IP: ");
                        Serial.println(WiFi.gatewayIP());
                        Serial.print("DNS: ");
                        Serial.println(WiFi.dnsIP());
                      
                        if (!bme.begin(0x76);) {
                          Serial.println("Couldn't find sensor!");
                          while (1);
                        }
                      
                        server.begin();
                      }
                      
                      void loop()
                      {
                        float temp = bme.readTemperature();
                        float tempf = temp * 1.8 + 32;
                        float rel_hum = bme.readHumidity();
                      
                        WiFiClient client = server.available();
                        if (client) {
                          Serial.println("New Client."); 
                          client.println("{");
                          client.print("  \"temperature_c\": ");
                          client.print(temp);
                          client.println(",");
                          client.print("  \"temperature_f\": ");
                          client.print(tempf);
                          client.println(",");
                          client.print("  \"humidity\": ");
                          client.print(rel_hum);
                          client.println(",");
                          client.println("  \"error\": false");
                          client.println("}");
                          client.stop();
                          Serial.println("Client disconnected.");
                          Serial.println("");
                        }
                        delay(100);
                      }
                      

                      You can use netcat to fetch the data:

                      /bin/nc -w3 THE_IP_OF_THE_ESP 80
                      

                      And the result will be something like:

                      {
                         "humidity": 32.61236572265625,
                         "temperature_c": 25.50150878906249, 
                         "temperature_f": 77.9027158203125, 
                         "error": false
                      }
                      

                      This kind of JSON object then can be read by my MMM-Temperature module.

                      S X 2 Replies Last reply Dec 1, 2022, 6:43 PM Reply Quote 1
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