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MotionDetector.ino
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MotionDetector.ino
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#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include "settings.h"
#define Sens1 D8
#define LED_PIN D1
WiFiClient wifiClient;
PubSubClient mqttClient(wifiClient);
uint8_t sens_status = 0;
void connectWifi() {
int count = 0;
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
count++;
Serial.print(".");
if ( count > 20 ) {
ESP.restart();
}
}
Serial.println("Connected to wifi");
}
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println("Liiketunnistin");
pinMode(Sens1, INPUT_PULLUP); // sets the digital pin 0 as input
pinMode(LED_PIN, OUTPUT);
WiFi.mode(WIFI_STA);
connectWifi();
}
static void mqtt_send(const char *topic, const char *message)
{
// Make sure we have wifi and if not try to get some wifi. If we do not have saved wifi settings create accespoint with esp_id and wifi_pw ( at first run login to ap and save wifi settings ).
if (!mqttClient.connected()) {
mqttClient.setServer(MQTT_SERVER, MQTT_PORT);
mqttClient.connect("Liikesensori", MQTT_USER, MQTT_PASSWORD);
}
if (mqttClient.connected()) {
Serial.print("Publishing ");
Serial.print(message);
Serial.print(" to ");
Serial.print(topic);
Serial.print("...");
int result = mqttClient.publish(topic, message, true);
Serial.println(result ? "OK" : "FAIL");
}
}
void loop() {
if ( WiFi.status() != WL_CONNECTED) {
connectWifi();
}
else {
uint8_t sens_status_new = digitalRead(Sens1);
// Jos liikettä sytytetään espin led
if (digitalRead(Sens1) == LOW) {
digitalWrite(LED_PIN, HIGH);
}
else {
digitalWrite(LED_PIN, LOW);
}
// Jos liikettä lähetetään mqtt viesti
if ( sens_status_new and (sens_status != sens_status_new)) { // Jos liikettä ja edellinen tila on ollut ei liikettä ( ei lähetä samasta liikestää useaa viestiä)
mqtt_send(MQTT_TOPIC, "aani");
}
sens_status=sens_status_new;
}
}