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| chaosstuff:infrastructure:network:mqtt [2018/12/23 12:14] – created metalgamer | chaosstuff:infrastructure:network:mqtt [2021/07/25 14:06] (current) – [Table] metalgamer |
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| We are running an MQTT broker inside our network. This can be used for projects, for example for sensor data. | We are running an MQTT broker inside our network. This can be used for projects, for example for sensor data. |
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| | ===== Host ===== |
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| | We run 2 MQTT brokers, one on saturn and on roonadan.lan (192.168.1.189). Both are bridged together, so all messages will be forwarded to each other. |
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| | ===== Sandbox ===== |
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| | Under the topic ''sandbox/#'' you can play around and send messages. |
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| | ===== Topics used ===== |
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| | The following topics are ACL restricted. Your MQTT client needs to have a valid login and the according permission to read/write on the topics. Ask [[user:metalgamer|metalgamer]] on how to get an account. |
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| | ^ Topic ^ Description ^ |
| | | availability/# | This topic is used for every client to publish availability messages (online/offline). This is the topic for the last will messages. | |
| | | space/status | This topic contains the current space state. It is a JSON encoded message. | |
| | | space/member_count | On this topic the current member count of the club will be published. This message is JSON encoded. | |
| | | sensors/people_now_present | On this topic the current people present will be published (integer) | |
| | | sensors/people_now_present/names | The names of the people present (if available) | |
| | | sensors/temperature/# | On this topic the current temperature sensors readings will be published. The readings are in °C an are a float. The subtopics are the location for the sensors (Example: sensors/temperature/chill/shelf for the sensors on the shelf in the Chill room) | |
| | | sensors/power_consumption/# | On this topic the power consumption sensor readings will be published. The readings are in W (Watt) and are a float. The subtopics are the location for the sensors. | |
| | | sensors/energy_consumption/# | On this topic the energy consumption sensor readings will be published. The readings are in kWh (Kilowatthour) and are a float. The subtopics are the location for the sensors. | |
| | | sensors/co2_emission/# | On this topic the co2 emission sensor readings will be published. The readings are in kg and are a float. The subtopics are the location for the sensors. | |
| | | sensors/humidity/# | On this topic the humidity sensor readings will be published. The readings are in % and are a float. The subtopics are the location for the sensors. | |
| | | sensors/barometer/# | On this topic the barometer sensor readings will be published. The readings are in hPa (Hectopascal) and are a float. The subtopics are the location for the sensors. | |
| | | sensors/beverage_supply/+ | On this topic the stock value of beverages will be published. The readings are the current amount and are a float. The subtopic is the name of the beverage (Example: sensors/beverage_supply/flora_power) | |