Integrate your Orcon in Home AssistantDesigned by Orcon met Wifi in Netherlands
The OrconWifiController is used to control an Orcon "Mechanische Ventilatie" unit. I made this because the Orcon units do not have any Domotica and/or Wi-Fi integration. With the OrconWifiControlle...Read More…
The OrconWifiController is used to control an Orcon "Mechanische Ventilatie" unit. I made this because the Orcon units do not have any Domotica and/or Wi-Fi integration. With the OrconWifiController you can integrate it into Home Assistant or your favorite home automation software. It will provide the following functions:
The OrconWifiController is compatible with all Orcon MVS-15 units, as long as they are based on the EBM-Papst R3G190-RC05-20 fan.
The above functionality is accomplished by installing the OWC in between the fan and factory controller. The OWC is controlled by an ESP (Wemos D1 Mini (Pro)) and runs ESPHome firmware. A 220V cable is supplied. All the 220V connectors have the same pinout, so they can be connected in any way possible. It is also possible to run the OWC standalone, without the factory PCB.
A relay controls if the factory PCB controls the fan, or that the Wemos controls the fan. The default state of the relay is that the factory remote is in control. If you want to control the speed of the fan through Home Assistant/Wemos then the relay must be activated.
On the PCB, the following pins are connected: Top-left = 1 Bottom-left = 8 Top right = 9 Bottom-right = 16
Pin 5 = PWM output to fan Pin 7 = Relay Pin 11 = Input from factory PCB (PWM) Pin 12 = Current fanspeed rpm
The rest of the pins are designed for a Wemos D1 Mini (Pro).
Steps to integrate it into Home Assistant:
Supervisor --> Add-on store --> add ESPHome Add node in ESPHome Paste YAML code and save. If the Wi-Fi connection works, then the node should change color from red to green. Sometimes the Fallback hotspot does not work automatically on the ESPHome firmware. Either reflash the firmware with your own credentials or setup a temporary Wi-Fi connection using SSID "OrconTestWifi" and password "WifiModule1234". If new firmware needs to be flashed to the Wemos, then GPIO 0 and GND need to be connected during power-on to enter flash mode. Add an integration in HA using Configuration --> Integrations --> Add integration --> ESPHome Enter the IP address of the OrconWifiController The new sensors/controls should be setup automatically by HA
More information can be found here: https://github.com/hubertjanhickinson/OrconWifiController/
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