LDR - Cell Phone Door Opener
It's very simple: put the LDR to the display of your phone. Every time the display goes on, the LDR recognizes it and the AtTiny-Chip switches on a relais that is intendet to bypass the button of your door opener.
It's very simple: put the LDR to the display of your phone. Every time the display goes on, the LDR recognizes it and the AtTiny-Chip switches on a relais that is intendet to bypass the button of your door opener.