Discussion on smart features in electronics and how some simple devices can be made smart.

• Most electronics have smart features to allow control via apps or voice assistants.
• Some devices, like lamps, may not have smart features due to cost, but smart plugs can offer control.
• Items with multiple states, such as a projector screen with up, down, and stop functions, can't be directly controlled with a smart plug.

The presenter sets out to make a basic projector screen smart.

• The screen chosen is a basic, inexpensive 100-inch motorized model from Amazon with a simple remote.
• The goal is to make the screen smart using minimal electronics without ruining its existing functions.
• The wall controls will remain untouched; the focus is on modifying the remote.

Opening up the remote to understand its workings and plan for modifications.

• The remote contains three buttons connected to a transmitter that could be interfaced with an ESP board.
• A surprising discovery is made that the remote runs on a 12V battery, but this is not an obstacle.

The presenter explains the electronics involved and how they plan to use them.

• The concept of using an Arduino microcontroller to mimic button presses is presented.
• The presenter shares that they have an online course for those interested in learning electronics and programming.
• The video promotes the course, stating it begins at a basic level and progresses to more complex concepts.

Initial programming of the ESP board to control the remote's functions.

• The ESP board is programmed to connect to the network and control the remote's buttons.
• Three virtual devices are created: 'screen up', 'screen stop', and 'screen down'.
• To ensure that the code functions correctly, LEDs are used to test the output before connecting to the remote.

Testing the setup with LEDs and discovering that the remote does not require as much power as expected.

• The presenter connects the ESP board to LEDs to ensure the virtual buttons work as intended.
• The remote control's operation is tested without the 12V battery, revealing that a lower voltage is sufficient.
• The setup is simplified to run on USB power alone.

Adding a limit switch to stop the screen at the right height.

• A limit switch is introduced to stop the screen when it reaches the desired position.
• The presenter plans to combine the smart controller with the physical limit switch for accurate stopping.

Integrating the smart screen setup with voice assistant routines.

• The screen is added to the Amazon system as a device, allowing for voice control.
• The presenter demonstrates using a voice command to bring down the screen.
• A routine is set up for a voice command to prepare the room for movie watching.

Troubleshooting issues and making final adjustments to the smart screen setup.

• The presenter encounters issues with the remote's antenna being covered, which is resolved by redesigning the case.
• The code is updated to simplify the voice commands for controlling the screen.
• Final integration involves 3D printing a case and setting up a physical position for the limit switch.

The smart projector screen is completed, and the presenter summarizes the project and promotes their course.

• The project is a success with the screen being controllable through voice commands.
• The presenter reflects on the possibility of using a relay for different voltage requirements and mentions their course for interested viewers.
• The video concludes with an invitation to check out the online Arduino course offered by the presenter.