as an absolute beginner to Raspberry Pi I have a few questions before I start my project.
So I don't waste a lot of time and then find out it is not possible.
I have a big televison screen at our rowing club, with multiple HDMI ports and a serial port. I also have the documentation for this serial port which shows that via serial commands it should be possible to change standby to on and off, and change input from HDMI1 to HDMI2.
1) I want to use Rapsberry Pi to change the input wich should be done via two pushbuttons, one for HDMI1 and an other for HDMI2.
2) I also would like to switch standby to "On" and "Off" via this serial connector. Changing the standby status should be done in three different ways:
2a) via a timer on the raspberry Pi, so for example switch on every work day at 09.00 and swith off every work day at 17:00 hrs.
2b) via a motion sensor, when someone enters the room, and the screen is not switched on, switch on, and (for example) switch off after 15 minutes of no movement.
2c) triggerd by the light in the hall, so 220 volt -> 5 volt and then input this on the rapsberry Pi.
Hopefully this can be done, and I can start this (big) project.