hello i have running nodemcu with this code:
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <DHT.h>
#define wifi_ssid "Casa"
#define wifi_password "xxxxx"
#define mqtt_server "192.168.1.89"
#define mqtt_user "xxxx"
#define mqtt_password "xxxx"
#define humidity_topic "sensor/humidity"
#define temperature_topic "sensor/temperature"
#define DHTTYPE DHT11
#define DHTPIN 4
WiFiClient espClient;
PubSubClient client(espClient);
DHT dht(DHTPIN, DHTTYPE, 11); // 11 works fine for ESP8266
void setup() {
Serial.begin(115200);
dht.begin();
setup_wifi();
client.setServer(mqtt_server, 1883);
}
void setup_wifi() {
delay(10);
// We start by connecting to a WiFi network
Serial.println();
Serial.print("Connecting to ");
Serial.println(wifi_ssid);
WiFi.begin(wifi_ssid, wifi_password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void reconnect() {
// Loop until we're reconnected
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// Attempt to connect
// If you do not want to use a username and password, change next line to
// if (client.connect("ESP8266Client")) {
if (client.connect("ESP8266Client", mqtt_user, mqtt_password)) {
Serial.println("connected");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
}
bool checkBound(float newValue, float prevValue, float maxDiff) {
return !isnan(newValue) &&
(newValue < prevValue - maxDiff || newValue > prevValue + maxDiff);
}
long lastMsg = 0;
float temp = 0.0;
float hum = 0.0;
float diff = 1.0;
void loop() {
if (!client.connected()) {
reconnect();
}
client.loop();
long now = millis();
if (now - lastMsg > 2000) {
lastMsg = now;
float newTemp = dht.readTemperature();
float newHum = dht.readHumidity();
if (checkBound(newTemp, temp, diff)) {
temp = newTemp;
Serial.print("New temperature:");
Serial.println(String(temp).c_str());
client.publish(temperature_topic, String(temp).c_str(), true);
}
if (checkBound(newHum, hum, diff)) {
hum = newHum;
Serial.print("New humidity:");
Serial.println(String(hum).c_str());
client.publish(humidity_topic, String(hum).c_str(), true);
}
}
}
my log:
17-02-20 22:20:19 DEBUG (Thread-13) [homeassistant.components.mqtt] Received message on topicName/humidity: 20.00
17-02-20 22:20:19 INFO (MainThread) [homeassistant.core] Bus:Handling <Event mqtt_message_received[L]: qos=0, topic=topicName/humidity, payload=20.00>
- platform: mqtt
name: "teste"
state_topic: "topicName/humidity"
qos: 1
unit_of_measurement: "%"
value_template: "{{ value_json.Temp }}"
my home assistant:
what is wrong?
