Control the TV using MQTT over the TV's EX-Link port
- mqtt.go - An mqtt client that listens for commands like "on" and does actions like turn on the tv when received.
- on.go - Immediately turn on the tv
- hdmi.go - Immediately switches to input HDMI1
Connect a computer/raspberry pi to the TV through a serial to EX-Link adapter (through a USB to serial adapter), compile and run.
Edit and add tv.service to systemd to start on boot.