ESP8266 Community Forum

- Mon Jan 08, 2018 5:12 am #72961 Hello!

(Sorry for my English, is translated with the google translator, I add the original message in Spanish)

I've been in this amazing IoT world for a short time, and I'm trying to make a wireless heating control project.

My installation needs a tft-touch screen that is used to show data and configure the system, and requires to communicate with a mqtt broker (mosquitto) through wifi with an esp01

After much searching, I think that Martin's work is what I need, but I am still very new and I can not understand how to communicate the arduino one with the esp01

I understand that with this I can use esp as an bridge mqtt (I could be wrong) and I followed the steps of the tutorial to install the firmware in the esp.

The operation is spectacular but I can not use it with Arduino as a bridge.

The connection must be made through hardwareSerial or can it also be done withSerial software?

Should any library be included in the arduino for use?

What instructions are used from the arduino to publish, subscribe, etc to the broker?

A simple example of how to use it as a bridge would be very helpful, I am totally lost with that.

Maybe this is wrong and does not work for what I need, but simply being able to create a Wi-Fi repeater is already impressive, great work !!

Thank you


____________________________

SPANISH

Hola!

Llevo poco tiempo en este sorprendente mundo de IoT, y estoy intentando hacer un proyecto inalambrico de control de calefaccion.

Mi instalacion necesita una pantalla tft-tactil que se usa para mostrar datos y configurar el sistema, y requiere comunicarse con un broker mqtt (mosquitto) a traves de wifi con un esp01

Tras mucho buscar, creo que este trabajo de Martin es lo que necesito, pero soy muy novato todavia y no alcanzo a entender como comunicar el arduino uno con el esp01

Entiendo que con esto puedo utilizar el esp como intermediario mqtt (pudedo estar equivocado) y he seguido los pasos del tutorial para instalar el firmware en el esp. El funcionamiento es espectacular pero no consigo usarlo con arduino como puente.

La conexion debe hacerse a traves de hardwareSerial o puede hacerse tambien con softwareSerial?

Se debe incluir alguna biblioteca en el arduino para su uso?

Que instrucciones se utilizan desde el arduino para publicar, suscribirse, etc al broker?

Un simple ejemplo de como usarlo como puente me seria de gran ayuda, estoy totalmente perdido con eso.

Quiza este equivocado y no sirva para lo que necesito, pero simplemente el poder crear un repetidor wifi ya es impresionante, gran trabajo!!

Gracias

- Sat Jan 13, 2018 1:53 am #73106 Jose,

I'm not sure I understood you project correctly, but I guess you want to connect an Arduino to an MQTT broker using an ESP8266. If so, my uMQTTBroker is probably not the best choice as firmware for the ESP. While it can communicate via the serial interface and also act as an MQTT client, it would still require a custom script to do the job.

I would recommend looking into rhis project ESP-LINK: Wifi-Serial Bridge w/REST&MQTT https://github.com/jeelabs/esp-link . This is really a swiss army knife for any Arduino requiring services from an ESP8266.

- Mon Jan 15, 2018 11:51 am #73154 Thanks, martin_g

I've been watching what you're saying and I think you're right.
I will do tests with esp-link to integrate it into my project.

Thank you

- Wed Feb 28, 2018 11:04 am #74259 Hi Martin,
First thanks for this great job

I downloaded and installed the uMQTTBroker library in my Arduino IDE environment
and uploaded uMQTTBrokerSample.ino in my ESP8266 chip

As expected in the code, the ESP8266 keeps trying to connect on my home router
I want to create a pure local broker with ESP8266 specific network
Can you submit a simple example Arduino IDE sketch to perform this task ??

Is this library usable for ESP32 ??

Thanks in advance