CLIL - Praktická cvičení
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exercise with MCU
Microcontroller - A Beginners Guide
IDE:
WinAVR
IDE: AVR Studio
IDE: CodeVisionAVR
MCU WinAVR Install
Understanding Button Debouncing
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#include <avr/io.h> int main(void) { DDRB |= 1 << PINB0; //Set Direction for output on PINB0 PORTB ^= 1 << PINB0; //Toggling only Pin 0 on port b DDRB |= 1 << PINB2; //Set Direction for Output on PINB2 DDRB &= ~(1 << PINB1); //Data Direction Register input PINB1 PORTB |= 1 << PINB1; //Set PINB1 to a high reading int Pressed = 0; //Initialize/Declare the Pressed variable while (1) { if (bit_is_clear(PINB, 1)) //Check is the button is pressed { //Make sure that the button was released first if (Pressed == 0) { PORTB ^= 1 << PINB0; //Toggle LED in pin 0 PORTB ^= 1 << PINB2; //Toggle LED on pin 2 Pressed = 1; } } else { //This code executes when the button is not pressed. Pressed = 0; } } } |
exercise with NXT
maybe:
