Hi,
Anybody know the details of this old-tecnique videogame toy?
I want to build something like it, but, of course, with PIC
My doubts is about the tv frequency...
I builded a litte prototype using a phototransistor that oscillate 5v when the sensor see a white block on TV and it drops 0v when he see a black block.
BUT, i remenbered that the TV oscillate the entire screen causing a litte delay between the static color that i want to detect.
Just a detail, when i test the circuit with static source lights, it works perfectly. When i aim the sensor to a non-light object, it drops 0v (my debug led stay off), and whe i aim to a static red led light source, my debug led stay on while the sensor is detecting light.
In resume, i want to transform the oscillated white and black colors to static light sources. So, my sensor and the PIC can work only using 5v and 0v pulses.
Thanks!