Hello, I’m trying to configure an MQTT button panel designed to be able to be placed outside the home and be able to control routines from there.
I am programming it at home, once it works, I will configure it externally.
The idea is that it has 4 buttons (binary sensors) and that each one sends the value in binary to its topic, obviously I am doing something wrong, this is the fragment of my code in HA:
binary_sensor:
- name: "dev_0000_00"
unique_id: "dev_0000_00"
state_topic: "homeassistant/devices/demo/4btns/D0"
- name: "dev_0000_01"
unique_id: "dev_0000_01"
state_topic: "homeassistant/devices/demo/4btns/D1"
- name: "dev_0000_02"
unique_id: "dev_0000_02"
state_topic: "homeassistant/devices/demo/4btns/D2"
- name: "dev_0000_03"
unique_id: "dev_0000_03"
state_topic: "homeassistant/devices/demo/4btns/D3"
This is the code for ESP32-WROOM in ArduinoIDE:
//MQTT_4_BTN_V2.ino
#include "Secrets.h"
#include "config.h"
#include <WiFi.h>
#include <PubSubClient.h>
#define D0_Pin 35
#define D1_Pin 34
#define D2_Pin 39
#define D3_Pin 36
bool D0_Ste = false;
bool D1_Ste = false;
bool D2_Ste = false;
bool D3_Ste = false;
WiFiClient espClient;
PubSubClient client(espClient);
void setup() {
pinMode(D0_Pin, INPUT);
pinMode(D1_Pin, INPUT);
pinMode(D2_Pin, INPUT);
pinMode(D3_Pin, INPUT);
delay(5000);
Serial.begin(115200);
setup_wifi();
client.setServer(CONFIG_MQTT_HOST, CONFIG_MQTT_PORT);
}
void setup_wifi() {
delay(10);
Serial.println();
Serial.print("Connecting to ");
Serial.println(CONFIG_WIFI_SSID);
WiFi.mode(WIFI_STA);
WiFi.begin(CONFIG_WIFI_SSID, CONFIG_WIFI_PASS);
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() {
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
if (client.connect(CONFIG_MQTT_CLIENT_ID, CONFIG_MQTT_USER, CONFIG_MQTT_PASS)) {
Serial.println("connected");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
delay(5000);
}
}
}
#define PrescalerK 25
int k=PrescalerK;
void loop() {
if (!client.connected()){reconnect();}
while(!k--){
if(digitalRead(D0_Pin) && D0_Ste == 0){
D0_Ste = 1;
client.publish(CONFIG_MQTT_TOPIC_BTN_000, "1", true);
}
if(!digitalRead(D0_Pin) && D0_Ste == 1){
D0_Ste = 0;
client.publish(CONFIG_MQTT_TOPIC_BTN_000, "0", true);
}
if(digitalRead(D1_Pin) && D1_Ste == 0){
D1_Ste = 1;
client.publish(CONFIG_MQTT_TOPIC_BTN_001, "1", true);
}
if(!digitalRead(D1_Pin) && D1_Ste == 1){
D1_Ste = 0;
client.publish(CONFIG_MQTT_TOPIC_BTN_001, "0", true);
}
if(digitalRead(D2_Pin) && D2_Ste == 0){
D2_Ste = 1;
client.publish(CONFIG_MQTT_TOPIC_BTN_002, "1", true);
}
if(!digitalRead(D2_Pin) && D2_Ste == 1){
D2_Ste = 0;
client.publish(CONFIG_MQTT_TOPIC_BTN_002, "0", true);
}
if(digitalRead(D3_Pin) && D3_Ste == 0){
D3_Ste = 1;
client.publish(CONFIG_MQTT_TOPIC_BTN_003, "1", true);
}
if(!digitalRead(D3_Pin) && D3_Ste == 1){
D3_Ste = 0;
client.publish(CONFIG_MQTT_TOPIC_BTN_003, "0", true);
}
client.loop();
k=PrescalerK;
}
delay(10);
}
//config.h
#define CONFIG_MQTT_CLIENT_ID "dev_0000"
#define CONFIG_MQTT_TOPIC_BTN_000 "homeassistant/devices/demo/4btns/D0"
#define CONFIG_MQTT_TOPIC_BTN_001 "homeassistant/devices/demo/4btns/D1"
#define CONFIG_MQTT_TOPIC_BTN_002 "homeassistant/devices/demo/4btns/D2"
#define CONFIG_MQTT_TOPIC_BTN_003 "homeassistant/devices/demo/4btns/D3"
In a side menu panel, I have put the 4 entities, all of them appear as unknown:
