Control of Device with UART

[Tico]

I have an air conditioning device that may be controllable via UART.

It has functions of On/Off and fan speed control. The manufacturer advises the protocol is UART (TTL levels from 0V to 3.0V, pins TX/RX, 115200 baud, 8-n-1).

I can't find any Loxone documentation on this subject.

Can someone advise if there's any way to integrate this protocol with the miniserver?

[maxw]

Yoe definitly need 3d party Hardware, and Arduino or better Raspberry PI may help, in combination with an UART HW adapter.

[Robert L.]

maybe a RS232<>UART and the Loxone RS232 extension may work

but it also may depend on the protokoll itself

there are also male and female version of rs232<>uart boards..


maybe using a arduino with Ethernet shield ist cheaper and easyer..

[Benjamin Jobst]

And maybe you could also use the IR Air or IR interface, I assume your AC also has a common remote control?

[Tico]

Thanks for the info.

The device I refer to is this -

https://evapolar.com/

The application is in a remote enclosure for temperature control. A continuous water supply is provided instead of the unit's limited water tank.

It has no remote control. A simple hardware integration is to use a Loxone Digital Output to control the ON/OFF function. It's just 5V.

The fan speed control is more complex. The bezel rotates like an iPod. Below and inside the bezel circumference are multiple stalks at about 5 degree spacing. These break the light path between an IR diode and a receiver. Somehow it cleverly works out the direction of bezel rotation for fan speed increase and decrease.

I'm thinking of wiring onto the IR receiver IC and trying to reproduce signal output of the bezel rotation.

Does the Analogue Multiclick function block provide scope for selectable voltage outputs as 'clicks'?