Control your HDMI-TV to turn it on and off. It works only with another compatible module which send the correct Event to this module which can turn the TV off or on.

For example my other little Project MMM-MotionControl which turn the TV on when a person is on front of the Mirror and turn it off if they leave, all that work with a Raspberry Pi Camera.

We can't do a Screenshot because it runs in the background :) It's only react on some events to turn the TV on and off.

CEC-Client to send the command to the TV.

sudo apt-get install cec-utils

npm module install

npm ci

In this module you only need to set the comport for the CEC-Client. Usualy it is RPI which is also the defaut value.

You can read the comport if you run the following command. cec-client -l.

{
    module: 'MMM-CECControl',
    config: {
        // Comport of your Raspberry Pi
        comport: 'RPI',
        // Turn the TV off if the Mirror start
        offOnStartup: true,
        // Turn xScreensaver off if TV turn on
        xscreensaver: false,
        // Use customCmdOn and customCmdOff instead of CEC
        useCustomCmd: false
        // Custom command to run to turn TV on
        customCmdOn: 'vcgencmd display_power 1'
        // Custom command to run to turn TV off
        customCmdOff: 'vcgencmd display_power 0'
    }
}

To turn the TV on or of from another Module you need to send a notification.

this.sendNotification('CECControl', 'on');
this.sendNotification('CECControl', 'off');

To make the CEC adapter the as active source (so the TV switches to the Raspberry Pi HDMI source after the TV is powered on).

this.sendNotification('CECControl', 'as');