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Trace: • ITT Relay module • Green Energy Sources in IoT • IoT Energy Storage Systems • autonomous_transport_systems • ITT Temperature and humidity sensor module • U3: Sending MQTT messages • B7: Controlling servo • VREL #2 and #4: General Purpose IoT Laboratory, air pushing nodes 2 and 4 • Hands-on lab scenarios for SUT VREL nodes • B1: Basic operations on the 4x20 LCD screen

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en:iot-open:remotelab:ume:smartme:m1 [2019/10/29 11:16] – pczekalskien:iot-open:remotelab:ume:smartme:m1 [2020/07/20 09:00] (current) – external edit 127.0.0.1
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-==== M1: MQTT to publish a message with a topic ====+==== IM1: MQTT to publish a message with a topic ====
 MQTT is one of the most commonly used protocols in IoT projects. It stands for Message Queuing Telemetry Transport. In addition, it is designed as a lightweight messaging protocol that provides publish/subscribe operations to exchange data between parties. This exercise is to be considered as closely related to the M2 exercise. Both are part of the same scenario. This exercise shows how to publish a message as a client. MQTT is one of the most commonly used protocols in IoT projects. It stands for Message Queuing Telemetry Transport. In addition, it is designed as a lightweight messaging protocol that provides publish/subscribe operations to exchange data between parties. This exercise is to be considered as closely related to the M2 exercise. Both are part of the same scenario. This exercise shows how to publish a message as a client.
  
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 It will be possible to display the value of the temperature, measured from the sensors attached to this node of the lab, on the LCD display attached to another node of the lab, provided that in the latter node the M2 sketch has been previously launched. It will be possible to display the value of the temperature, measured from the sensors attached to this node of the lab, on the LCD display attached to another node of the lab, provided that in the latter node the M2 sketch has been previously launched.
 Start Start
-This exercise is to be considered as closely related to the M2 exercise. This means that if you want to reproduce a complete experiment, you have to book at least two nodes of the lab, and then you have to run both M1 and M2 sketches, one per node.+This exercise is to be considered as closely related to the M2 exercise. This means that if you want to reproduce a complete experiment, you have to book at least two nodes of the lab, and then you have to run both IM1 and IM2 sketches, one per node.
  
 === Steps === === Steps ===
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-=== M1_pub.cpp ===+=== IM1_pub.cpp ===
 <code c> <code c>
 #include <Ethernet.h> #include <Ethernet.h>
en/iot-open/remotelab/ume/smartme/m1.1572347803.txt.gz · Last modified: 2020/07/20 09:00 (external edit)
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