MQTTDevice32

MQTTDevice is an Arduino sketch for ESP32 and ESP8266 Wemos D1 mini modules. MQTTDevice enables communication between sensors, actors and an induction hob GGM IDS2 via WLAN and MQTT with CraftBeerPi V4.

The instructions on MQTTDevice gitbook apply to both modules, ESP32 and ESP8266. MQTTDevice32 supports more actors, more sensors and a faster dual core CPU than MQTTDevice4. Please note some syntax differences when flashing firmware.

Please support the MQTTDevice project and expand this short manual, FAQs, languages files etc.

Web Interface

🗺️ 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!

💠 GPIO mapping ESP32

The ESP32 D1 offers a pinout suitable for the ESP8266 (GPIO D0 to D8). The pin assignment shown is based on the ESP32 D1 Mini NodeMCU module from AZ-Delivery

GPIO mapping:

ESP32 D1 Pinout-1

ESP32 D1 Pinout-2

Name	GPIO	Input	Output	Description
D0	GPIO026	ok	ok
D1	GPIO022	ok	ok	SCL Display
D2	GPIO021	ok	ok	SDA Display
D3	GPIO017	ok	ok	DS18B20 sensors
D4	GPIO016	ok	ok
D5	GPIO018	ok	ok	IDS2 blue
D6	GPIO019	ok	ok	IDS2 yellow
D7	GPIO023	ok	ok	IDS2 white
D8	GPIO005	ok	ok	MAX31865 CS5, Buzzer
D9	GPIO027	ok	ok	MAX31865 SCLK
D10	GPIO025	ok	ok	MAX31865 MISO
D11	GPIO032	ok	ok	MAX31865 MOSI
D12	GPIO012	(ok)	ok	TDI, boot fails if pulled high, strapping pin
D13	GPIO004	ok	ok	MAX31865 CS0
D14	GPIO000	pullUp	(ok)	must be low to enter flash mode
D15	GPIO002	ok	ok	onboard LED, must be low to enter flash mode
D16	GPIO033	ok	ok	MAX31865 CS1
D17	GPIO014	ok	ok	MAX31865 CS2
D18	GPIO015	ok	ok	MAX31865 CS3
D19	GPIO013	ok	ok	MAX31865 CS4

Pins connected to onboard flash and not recommended for GPIO use: CMD (IO11), CLK (IO6), SD0/SDD (IO7), SD1 (IO8), SD2 (IO9) and SD3 (IO10)

💠 GPIO mapping ESP8266

Bezeichner	GPIO	Input	Output	Beschreibung
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