hardware:venta_connected
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Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
hardware:venta_connected [2018/10/14 00:01] – reinhold | hardware:venta_connected [2018/10/28 19:37] (aktuell) – [section 5] reinhold | ||
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- | Now, since I have ZigBee temperature and humidity sensors in every room, I wanted to automate the humidifier and write rules in OpenHAB that would turn on the humidifier whenever the humidity falls below a threshold and also turn it off again once an acceptable level is reached. | + | Since I have ZigBee temperature and humidity sensors in every room, I wanted to automate the humidifier and write rules in OpenHAB that would turn on the humidifier whenever the humidity falls below a threshold and also turn it off again once an acceptable level is reached. |
===== 2. Investigating the electronics of the LW45 ===== | ===== 2. Investigating the electronics of the LW45 ===== | ||
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==== 3.1 Power supply: Step-down converter from 24V to 3.3V ==== | ==== 3.1 Power supply: Step-down converter from 24V to 3.3V ==== | ||
- | The Venta LW45 humidified | + | The Venta LW45 humidifier |
- | Initially, I tried a normal LN7805 voltage regulator, but that heated up too much, especially considering that the WiFi-PCB would be placed inside the humidifier | + | Initially, I tried a normal LN7805 voltage regulator, but that heated up too much, especially considering that the WiFi-PCB would be placed inside the humidifier' |
I do not, however, separate my own circuit with optocouplers from the Venta' | I do not, however, separate my own circuit with optocouplers from the Venta' | ||
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- | In my floorplan SVG, the humidifier looks like this can can be controlled by a simple click on the on/off icons or the level numbers: | + | In my floorplan SVG, the humidifier looks like this and can be controlled by a simple click on the on/off icons or the level numbers: |
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* Board (NOT tested, routing also not optimized): {{ : | * Board (NOT tested, routing also not optimized): {{ : | ||
* MySensors arduino sketch: {{ : | * MySensors arduino sketch: {{ : | ||
- | * Pictures: {{ : | + | * Pictures: {{: |
- | | + | (In the last picture one can see the error LED dimly lit, which is caused by the use of a voltage divider rather than the LM339/393 comparator...) |
hardware/venta_connected.1539475311.txt.gz · Zuletzt geändert: 2018/10/14 00:01 von reinhold