Hund(ebox), Van & (Termperatur)überwachung

Endlich geschaft, den PCA9685 hab ich ja schon länger bei mir rumfliegen, hab auch schon das ein oder andere Mal versucht das Teil ans Laufen zu bekommen. Wenn man dann mal kapiert hat das man die Hex Adresse als Dezimalzahl eingeben muss, ist es eigentlich ganz einfach. :wink:

An den Schrauben für den Bowdenzug habe ich eine Aluplatte mit dem Servo befestigt. Das Servo ist ein 2 Kg Servo mit Metallgetriebe. Für die Draht Verbindung habe ich noch ein neues Loch im Klappen Mitnehmer gebohrt, um einen besseren Winkel zu bekommen.


Der 1,5er Kupferdraht wird noch durch einen Stahldraht ersetzt.

Für den Testbetrieb reichen die 3,2 V aus dem PI, für den Dauerbetrieb sollte eine Externe Spannungsversorgung für die Servos vorgesehen werden.

Zum Programm:
Mit einen Slider kann man die Endpositionen anfahren, die dann mit einen Taster abgespeichert werden.
grafik
Das Servo wird dann nur noch mit einem Schalter AUF oder ZU gefahren.

Denkbar wäre auch für einen Mischluft Betrieb eine (mehrere) Mittelstellung abzuspeichern, und z.B. mit node-red-contrib-ui-multistate-switch die verschiedenen Positionen anfahren.

Im Programm habe ich erst mal 2 Servos vorgesehen und 1 Test LED, da das Teil 16 Ausgänge hat, ist ja noch einiges möglich. Man könnte 2 Ausgänge als Zustandsanzeige für die Klappen nehmen………
Zum Ansteuern der LEDs, Lüfter oder ähnlichel kann dann sowas genommen werden. YX-MOS


Der PCA liegt bei 6€ inclusive Porto, und der YX-MOS macht 15A und liegt auch bei 2-6€.
Ist glaube ich eine gute alternative zu TM-73726, Servo controller - TrainModules (R)

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    },
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]

Gruß
Arno

1 Like

Wir wollen auch die Heizungsschieber “Smart” machen, ich denke ich werde das dann mit einem ESP machen oder zusätzlich noch mit dem PCA9685, da man die Klappen besser und individuell steuern kann.

Ich habe in einem Video von (https://www.youtube.com/@VanOnTrack) gesehen, dass er Probleme mit dem Kunststoff bekommt, weil es bei ihm zu heiß wurde und sich verformte.

Hat da jemand auch schon Probleme mit gehabt?

Übrigens hat er direkt eine gute und günstige Lösung dafür gefunden, schaut es euch gerne mal an: https://www.youtube.com/watch?v=tX7NXHlt4Fg

In seinem vorhergehendem Video hat er übrigens das Servo direkt auf die Achse gebaut mit einem Halter aus Siebdruckplatten: https://www.youtube.com/watch?v=jmyTroJ9jK0
Da habe ich aber keine Infos wie gut das hält

Gruß
Roland