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MQTTDevice4

de ESP32

MQTTDevice4 is an Arduino sketch for the ESP8266 Wemos D1 mini modules. MQTTDevice4 enables sensors, actors and an induction hob GGM IDS2 to be communicate via WLAN and MQTT with CraftBeerPi V4.

Web Interface

✅ Features

  • Web Interface (WebIf) for easy configuration, backup and restore
  • Server Sent Events (SSE) for WebClients
  • Temperature sensors
    • Dallas DS18B20 Sensors (digital)
      • Search for connected sensors based on OneWire addresses
    • PT100 and PT1000 sensors (analog)
      • MAX31865 Amplifyer
    • MQTTDevice32 supports max 6 sensors
    • MQTTDevice4 supports max 3 sensors
  • Actors (max 15)
    • GPIO selection
    • used GPIOs are hidden
    • inverted GPIO
    • PWM values ​​between 0 and 100% are sent. MQTTDevice "pulses" with a cycle of 1000ms
    • MQTTDevice32 supports up to 15 actors
    • MQTTDevice4 supports 10 actors
  • Induction hob
    • induction hob GGM IDS2 can be controlled directly
  • Nextion HMI Touchdisplay support
  • Audio signals Piezo Buzzer
  • WebUpdate firmware
  • mDNS support
  • Event handling
  • File explorer
  • support for different languages

💻 Installation

  • Download Firmeware.zip
  • unzip Firmware.zip
  • edit Flashen.cmd:
  • change "COM3" in line 6 und line 8 "esptool.exe -p COM3" as you need
  • open command line (cmd.exe) and change into firmware.zip directory
  • start script "flashen.cmd"

Script flashen.cmd use esptool.

📚 Documentation

A detailed MQTTDevice documentation is available on gitbook: documentation

🗺️ Multilingual

MQTTDevice supports different languages. Each language has its own language file. The language files in JSON format are stored in the data folder.

Supported the project and translate MQTTDevice into a new language or extend existing language files!

💠 Pin-Belegung

Name GPIO Input Output Description
D0 GPIO026 ok ok MAX31865 MOSI (High at boot, no int, no PWM)
D1 GPIO022 ok ok SCL Display, MAX31865 MISO
D2 GPIO021 ok ok SDA Display, MAX31865 CLK
D3 GPIO017 ok ok DS18B20 sensors
D4 GPIO016 ok MAX31865 CS0 (High at boot, onboard LED)
D5 GPIO018 ok ok IDS2 blue, MAX31865 CS1
D6 GPIO019 ok ok IDS2 yellow, MAX31865 CS2
D7 GPIO023 ok ok IDS2 white
D8 GPIO005 ok Buzzer

📰 Sketch Information

Libraries: Version 4.58, 12.2023

  • ESP8266 3.1.2
  • Arduino IDE 1.8.19
  • VSCode 1.85 Arduino-CLI ESP8266FS Plugin (modified LittleFS)
  • OneWire
  • DallasTemperature
  • PubSubClient
  • ArduinoJSON
  • WiFiManager
  • modified NextionX2
  • InnuTicker
  • InnuFramework

Board configuration: Flash size 4MB (FS:2MB OTA:~1019kB)