vault backup: 2024-05-15 19:12:54

Programmieren/Temperatur Station/000 - Allgemein.md

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+ppm Werte: 
+- Standard: 300 - 450ppm
+
+ppm Ampel:
+- Grün: ppm<=550
+- Gelb: ppm >= 551 && ppm <= 799
+- Rot: ppm >= 800
+
+
+
+http://www.learningaboutelectronics.com/Articles/MQ-7-carbon-monoxide-sensor-circuit-with-arduino.php

Programmieren/Temperatur Station/001 - ToDo's - Verbesserungen.md

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+- [x] Add dashboard ✅ 2023-10-18
+	- [x] Save selected rooms to browser ✅ 2023-10-18
+	- [x] Get current temp ✅ 2023-10-18
+	- [ ] Get avg temp over set time eg. 1 hour
+- [ ] Let user pick time window to display data.
+- [ ] Don't prerender room
+	- /rooms/...
+- [ ] 
+

Programmieren/Temperatur Station/WLAN'S.md

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+````.ino
+#include <ESP8266WiFi.h>
+
+#include <ESP8266HTTPClient.h>
+
+#include <WiFiClientSecure.h>
+
+#include <WiFiClient.h>
+
+#include <ArduinoJson.h>
+
+  
+
+const int rows = 3;
+
+const char* wlans[rows][2] = { { "Privat W-LAN", "99842DA5D0" }, { "Rose", "Lodner2023" }, { "Privat W-LAN", "99842DA5D0" } };
+
+const char* serverAddress = "https://api.temperature-station.lodner.dev/measurement";
+
+  
+
+WiFiClientSecure client;
+
+HTTPClient https;
+
+  
+
+void setup() {
+
+  Serial.begin(9600);
+
+  
+
+  Serial.println("Start connecting to wlan.");
+
+  
+
+  for (int i = 0; i < rows; ++i) {
+
+    WiFi.begin(wlans[i][0], wlans[i][1]);
+
+    Serial.print("Connecting to: ");
+
+    Serial.println(wlans[i][0]);
+
+  
+
+    int trys = 0;
+
+    while (WiFi.status() != WL_CONNECTED && trys < 30) {
+
+      Serial.print("Err connecting to: ");
+
+      Serial.print(wlans[i][0]);
+
+      Serial.print(" Versuch: ");
+
+      Serial.println(trys + 1);
+
+      trys++;
+
+      delay(1000);
+
+    }      
+
+    Serial.println("");
+
+  
+
+    if (WiFi.status() == WL_CONNECTED) {
+
+      Serial.print("Connected to WiFi network with IP Address: ");
+
+      Serial.println(WiFi.localIP());
+
+      break;
+
+    }
+
+  }
+
+  
+
+  if (WiFi.status() == WL_CONNECTED) {
+
+    Serial.print("Connected to WiFi network with IP Address: ");
+
+    Serial.println(WiFi.localIP());
+
+  } else {
+
+    // TODO: LED = 1 when not connected?
+
+  }
+
+}
+
+  
+
+void loop() {
+
+  // put your main code here, to run repeatedly:
+
+  
+
+}
+```