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Location: ChaosStuff/spaceapibutton/SpaceApiButton.ino - annotation
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Added SpaceApiButton.ino
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#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#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() {
Serial.print("\nChecking WiFi...");
while (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.println("Connection Failed! Reboot...");
delay(5000);
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(".");
delay(1000);
}
Serial.println("\nConnected to MQTT!");
client.publish(MQTT_AVAILABILITY_TOPIC, "online", true, 2);
client.subscribe(MQTT_STATE_TOPIC);
}
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);
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;
}
}
}
lastButtonState = reading;
//Serial.println(send_trigger);
if (send_trigger == 1) {
client.publish(MQTT_TRIGGER_TOPIC, "1", false, 2);
send_trigger = 0;
}
digitalWrite(LED_BUILTIN, HIGH);
}
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