Domoticz notifications on the TV

What you need

• Domoticz (any recent version; the Telegram notifier is built in).
• A Telegram bot token from @BotFather (/newbot), the bot added to a dedicated "Home" group, and that group's chat id (send a message in the group and forward it to @getidsbot, or read the "chat":{"id"} field from https://api.telegram.org/bot<TOKEN>/getUpdates; group ids start with -100).
• An Android TV or Google TV with Tevegram signed in to the account that is a member of the "Home" group.

Setup

1. Enable the Telegram notifier. Setup, Settings, Notifications tab, Telegram section: paste the Bot API token and the chat id of the "Home" group (several ids can be separated by ";"). Press Test: the message must arrive in the group. Save.

2. Send notifications from devices or scripts. On a device, open Notifications and add one (for example "On" for a door sensor) with Telegram selected as the system. From dzVents, call domoticz.notify with the Telegram subsystem, as in the excerpt.

3. Enable the overlay on the "Home" group in Tevegram. On the TV, in the Chats tab, select the "Home" group and turn on its notification bell. Allow "Display over other apps" when Android asks. From now on, every message posted in that group appears over the TV picture.

4. Test. Trigger the automation, or type a message in the group from your phone. It should appear on the TV within a second or two, then fade out.

Configuration

dzVents script sending a Telegram notification

return {
  on = { devices = { 'Front door' } },
  execute = function(domoticz, device)
    if device.state == 'Open' then
      domoticz.notify('Home', 'Front door opened',
        domoticz.PRIORITY_NORMAL, domoticz.SOUND_DEFAULT, '',
        domoticz.NSS_TELEGRAM)
    end
  end
}

Good to know

Frequently asked questions