MQQT on Industruino

Hi, Industruino does MQTT with standard Arduino libraries, you can find a working example over Ethernet at https://industruino.com/blog/our-news-1/post/industruino-mqtt-client-over-ethernet-35

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Tom

Tom

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Answered on 11/19/18, 7:04 AM

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I am using it in production and it works exceptionally well. I am also using the new ethernet library that auto detects the type of eternet module as it has some extended functions to check if the ethernet cable is plugged in and if the hardware is present. It also reports remote IP address you are connected to as well as the port.

You MUST edit the w5100.h (in your arduino system libraries folder) source file and change the following

Comment out line #define SPI_ETHERNET_SETTINGS SPISettings(14000000, MSBFIRST, SPI_MODE0)

edit the line #define SPI_ETHERNET_SETTINGS SPISettings(8000000, MSBFIRST, SPI_MODE0) and  change 8000000 to 4000000 

save the file and compile again. I used Arduino IDE 1.8.7 and the ethernet library WebClientRepeating sample to test the ethernet functions (it uses the new functions) - add the following just after the includes to make the USB serial connection work easily

// serial output steam
#if defined(ARDUINO_SAMD_ZERO) || __SAMD21G18A__ && defined(SERIAL_PORT_USBVIRTUAL)
#define Serial SERIAL_PORT_USBVIRTUAL
#endif

This way you can use Serial.print etc as normal.

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Shane van Jaarsveldt

Shane van Jaarsveldt

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Answered on 12/3/18, 12:01 PM

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Thanks Tom,

I was going to ask for it myself soon.

Didier, DG2R

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Didier DORGUIN

Didier DORGUIN

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Answered on 11/19/18, 4:21 PM

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