2020-12-25 14:52:54 +00:00
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# DoorBell-MQTT-Gateway
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Based on
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- Arduino Uno
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2020-12-28 15:59:33 +00:00
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- Ethernet interface using MQTT
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2020-12-25 14:52:54 +00:00
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Watchout for GPIO changes as triggers for
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- door bell input
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2020-12-28 15:59:33 +00:00
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- mailbox observer (post entry)
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- mailbox observer (takeout posts)
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- light requests (button)
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Serve outputs (using relays to trigger) for
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- turn light on at mailbox
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- turn bell sound on
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MQTT messages:
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- doorBellTopic = "doorBellGW/doorbell"
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--> issued when pushbutton pressed: trigger / re-trigger / release
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- postboxFlapTopic = "doorBellGW/mailboxFlap"
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--> issued, when flap is opened to enter mail: trigger / re-trigger / release
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- postboxDoorTopic = "doorBellGW/mailboxDoor"
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--> issued, when mailbox door is opened to remove mail: trigger / re-trigger / release
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- doorBellTriggerSoundTopic = "doorBellGW/doorbellTrigger"
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--> listens to this message and turns on relay for a short time to trigger the bell/gong
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- doorLightRequestTopic = "doorBellGW/lightRequest"
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--> issued, when light pushbutton is pressed: trigger / re-trigger / release; light is turned on for 30 seconds
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- postboxLightTopic = "doorBellGW/light"
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--> listens to this message and turns light on at mailbox for 30 seconds
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- postboxLightStatusTopic = "doorBellGW/light/status"
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--> issued, when light at mailbox is turned on/off: on / off
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