simple button-only gamepad project where a Pro Mini is built into the gamepad case and sends keys over UART
Nevar pievienot vairāk kā 25 tēmas Tēmai ir jāsākas ar burtu vai ciparu, tā var saturēt domu zīmes ('-') un var būt līdz 35 simboliem gara.
 
 
 
 
arduino-gamepad/main.c

96 rindas
1.7 KiB

#include <avr/io.h> // register definitions
#include <avr/pgmspace.h> // storing data in program memory
#include <avr/interrupt.h> // interrupt vectors
#include <util/delay.h> // delay functions
#include <stdint.h>
#include <stdbool.h>
// Include stuff from the library
#include "lib/iopins.h"
#include "lib/usart.h"
#include "lib/debounce.h"
/* uppercase key names */
static const char names[] = {
'L', // 2
'U', // 3
'R', // 4
'D', // 5
'I', // 6
'J', // 7
'K', // 8
'X', // 9
'B', // 10
'A', // 11
'Y', // 12
};
/* nr of keys down */
uint8_t down = 0;
static void pin_change_handler(uint8_t n, bool state)
{
char c = names[n];
if (!state) {
c += 32; // lowecase
}
if (state) {
down++;
} else {
down--;
}
pin_set(9, (bool)(down > 0));
usart_tx((uint8_t) c);
}
static void hw_init(void)
{
usart_init(BAUD_115200);
as_input_pu(2);
as_input_pu(3);
as_input_pu(4);
as_input_pu(5);
as_input_pu(6);
as_input_pu(7);
as_input_pu(8);
// 9 - LED
as_output(9); // front LED
as_output(13); // LED on pro mini
as_input_pu(10);
as_input_pu(11);
as_input_pu(12);
as_input_pu(14);
// cant use loop because macros
debo_add(2, true, pin_change_handler);
debo_add(3, true, pin_change_handler);
debo_add(4, true, pin_change_handler);
debo_add(5, true, pin_change_handler);
debo_add(6, true, pin_change_handler);
debo_add(7, true, pin_change_handler);
debo_add(8, true, pin_change_handler);
debo_add(14, true, pin_change_handler);
debo_add(10, true, pin_change_handler);
debo_add(11, true, pin_change_handler);
debo_add(12, true, pin_change_handler);
}
void main(void)
{
hw_init();
int cnt = 0;
while (1) {
_delay_ms(1);
debo_tick();
}
}