If you are using a Chromecast for the first time, follow the included guide that comes with the device to set it up on your wireless network. You can also go to Here for details. On your phone or tablet, you will need to have the (Google Home) app downloaded and installed.
1. Make sure your Chromecast is powered up and plugged into your TV or projector.
2. Connect your Android phone/tablet to the same Wi-Fi network as your Chromecast device.
3. Open the Google Home app and go to the account tab at the bottom right corner of the screen.
4. Scroll down and look for “Mirror device" and tap on it.
5. Tap on the "CAST SCREEN/AUDIO" button.
6. Select your Chromecast device.
7. Return to the Spookymation app, and select your Spookymations.
8. If using a projector, power it on and align the image to your liking.
9. If using a TV, make sure it is powered on and the right TV input is selected to show the Chromecast.
10.When done power off the TV/projector and return to Google Home to stop casting.