Hi Guys, i’m new here and in hassio.
i’m following a tutorial to create an MQTT window sensor in arduino ESP01 and conect it to home assistant.
the thing is, i am getting the mqtt_topic in node red, the arduino is working as expected as you can see in the image i’m getting the toppic:
but i do not know how to publish it into an entity in the lovelace, i put this configuration in my configuration.yaml
sensor:
platform: mqtt
name: 'Window'
state_topic: 'test/window1'
unique_id: 'test/window1'
and indeed it is creating and entity called sensor.window_1 but the state doesn’t change, it shows “Unknown”
does anybody here can help me to solve this? is it something that i’m not doing?
thank you
code in arduino:
#include <PubSubClient.h>
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
ADC_MODE(ADC_VCC);
//USER CONFIGURED SECTION START//
const char* ssid = "MY_SSID";
const char* password = "MY_WIFI_PASSWORD";
const char* mqtt_server = "192.168.1.100";
const int mqtt_port = 1883;
const char *mqtt_user = "mqtt_user";
const char *mqtt_pass = "mqtt_password";
const char *mqtt_client_name = "windows"; // Client connections cant have the same connection name
const char *mqtt_topic = "test/window1";
IPAddress ip(192, 168, 1, 50);
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);
//USER CONFIGURED SECTION END//
WiFiClient espClient;
PubSubClient client(espClient);
// Variables
bool boot = true;
char batteryVoltageMQTT[50];
//Functions
void setup_wifi()
{
WiFi.config(ip, gateway, subnet);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(50);
}
}
void reconnect()
{
while (!client.connected())
{
int battery_Voltage = ESP.getVcc() + 600;
String temp_str = String(battery_Voltage);
String mqttString = temp_str + "mV Replace Battery";
mqttString.toCharArray(batteryVoltageMQTT, mqttString.length() + 1);
if (battery_Voltage <= 2900)
{
//boolean connect (clientID, username, password, willTopic, willQoS, willRetain, willMessage)
if (client.connect(mqtt_client_name, mqtt_user, mqtt_pass, mqtt_topic, 0, 1, batteryVoltageMQTT))
{
if(boot == true)
{
client.publish(mqtt_topic,"open");
boot = false;
}
}
else
{
ESP.restart();
}
}
if (battery_Voltage > 2900)
{
if (client.connect(mqtt_client_name, mqtt_user, mqtt_pass, mqtt_topic, 0, 1, "closed"))
{
if(boot == true)
{
client.publish(mqtt_topic,"open");
boot = false;
}
}
else
{
ESP.restart();
}
}
}
}
void setup()
{
setup_wifi();
client.setServer(mqtt_server, mqtt_port);
}
void loop()
{
if (boot == true)
{
reconnect();
}
else
{
ESP.deepSleep(0);
}
}