Quote Originally Posted by daphne8888 View Post
i mean that i connect a port to a push button where is the other end is connected to a pull up resistor with 5V. when i push the button, it will on. but after i release, it should b off but why my pic on the port still is 'high' ? got what coding that can change the input that "high" to "low"?
Still doesn't make much sense....losing something in the translation....
But if I'm getting what you're saying, the 'high' to 'low' command is right in the PBP manual.