ChaosStuff/spaceapibutton Changeset - ec770b41aaac · Chaos Computer Club Lëtzebuerg Projects

Changeset - ec770b41aaac

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tip default

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Dennis Fink - 5 years ago 2020-01-15 20:54:18
dennis.fink@c3l.lu

Let the LED flash, when there is an error and the button restarts

1 file changed with 21 insertions and 5 deletions:

SpaceApiButton.ino

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SpaceApiButton.ino

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@@ @@ -4,120 +4,136 @@ @@
 #include <ESP8266HTTPUpdateServer.h>
 #include <MQTT.h>
 #include <ArduinoJson.h>
 #include "Config.h"
 WiFiClient WiFiclient;
 MQTTClient client;
 ESP8266WebServer httpServer(80);
 ESP8266HTTPUpdateServer httpUpdater;
 // Variables will change:
 int buttonState;             // the current reading from the input pin
 int lastButtonState = LOW;   // the previous reading from the input pin
 int send_trigger = 0;
 // the following variables are unsigned longs because the time, measured in
 // milliseconds, will quickly become a bigger number than can be stored in an int.
 unsigned long lastDebounceTime = 0;  // the last time the output pin was toggled
 unsigned long debounceDelay = 50;    // the debounce time; increase if the output flickers
 const size_t bufferSize = JSON_OBJECT_SIZE(4) + 70;
 void connect() {
   digitalWrite(LED_BUILTIN, HIGH);
   Serial.print("\nChecking WiFi...");
   while (WiFi.waitForConnectResult() != WL_CONNECTED) {
     Serial.println("Connection Failed! Reboot...");
     delay(5000);
     digitalWrite(D2, LOW);
     digitalWrite(LED_BUILTIN, LOW);
     delay(250);
     digitalWrite(D2, HIGH);
     digitalWrite(LED_BUILTIN, HIGH);
     delay(250);
     digitalWrite(D2, LOW);
     digitalWrite(LED_BUILTIN, LOW);
     delay(250);
     digitalWrite(D2, HIGH);
     digitalWrite(LED_BUILTIN, HIGH);
     delay(250);
     digitalWrite(D2, LOW);
     digitalWrite(LED_BUILTIN, LOW);
     delay(4000);
     ESP.restart();
+  }
   Serial.println("Connected to WiFi!");
   Serial.print("Connected to: ");
   Serial.println(WiFi.SSID());
   Serial.print("IP: ");
   Serial.println(WiFi.localIP());
   Serial.print("Connecting to MQTT Server...");
   while (!client.connect(MQTT_CLIENT_ID, MQTT_USERNAME, MQTT_PASSWORD)) {
     Serial.print(".");
     digitalWrite(LED_BUILTIN, LOW);
     delay(1000);
     digitalWrite(LED_BUILTIN, HIGH);
+  }
   Serial.println("\nConnected to MQTT!");
   client.publish(MQTT_AVAILABILITY_TOPIC, "online", true, 2);
   client.subscribe(MQTT_STATE_TOPIC);
   digitalWrite(LED_BUILTIN, LOW);
+}
 void on_state_received(String &topic, String &payload) {
   StaticJsonDocument<bufferSize> jb;
   auto error = deserializeJson(jb, payload);
   if (not error) {
     if (jb["open"]) {
       digitalWrite(D2, HIGH);
     } else {
       digitalWrite(D2, LOW);
+    }
   } else {
     digitalWrite(D2, LOW);
+  }
+}
 void handle_root() {
   char temp[400];
   snprintf(temp, 400, "<html><body>This is the spaceapibutton!</body></html>");
   httpServer.send(200, "text/html", temp);
+}
 void setup() {
   Serial.begin(115200);
   Serial.println("Booting...");
   pinMode(LED_BUILTIN, OUTPUT);
   pinMode(D2, OUTPUT);
   pinMode(D1, INPUT);
   WiFi.hostname(HOSTNAME);
   WiFi.mode(WIFI_STA);
   WiFi.begin(WIFI_SSID, WIFI_PASS);
   client.begin(MQTT_SERVER, WiFiclient);
   client.setWill(MQTT_AVAILABILITY_TOPIC, "offline", true, 2);
   client.onMessage(on_state_received);
   connect();
   Serial.println("Starting MDNS...");
   MDNS.begin(HOSTNAME);
   Serial.println("Starting HTTP server...");
   httpUpdater.setup(&httpServer);
   httpServer.on("/", handle_root);
   httpServer.begin();
   Serial.println("Adding HTTP server to MDNS...");
   MDNS.addService("http", "tcp", 80);
   Serial.printf("HTTPUpdateServer ready! Open http://%s.local/update in your browser\n", HOSTNAME);
   pinMode(D2, OUTPUT);
   pinMode(D1, INPUT);
+}
 void loop() {
   client.loop();
   httpServer.handleClient();
   MDNS.update();
   delay(10);
   if (!client.connected()) {
     connect();
+  }
   int reading = digitalRead(D1);
   if (reading != lastButtonState) {
     lastDebounceTime = millis();
+  }
   if ((millis() - lastDebounceTime) > debounceDelay) {
     digitalWrite(LED_BUILTIN, LOW);
     if (reading != buttonState) {
       buttonState = reading;
       if (buttonState == HIGH) {
         send_trigger = 1;

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