103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "uart.h"
|
|
#include "pico/stdlib.h"
|
|
#include "hardware/uart.h"
|
|
|
|
#define UART_ID uart0
|
|
#define DATA_BITS 8
|
|
#define STOP_BITS 1
|
|
#define PARITY UART_PARITY_NONE
|
|
|
|
#define UART_TX_PIN 16
|
|
#define UART_RX_PIN 17
|
|
|
|
#define MAX_COMMAND_LENGTH 32
|
|
|
|
#define PINA 6
|
|
#define PINB 7
|
|
#define PINC 8
|
|
#define PIND 9
|
|
|
|
|
|
void set_power_state(char relay, bool on) {
|
|
uint state;
|
|
if (on)
|
|
state = 0;
|
|
else
|
|
state = 1;
|
|
|
|
uint pin;
|
|
switch (relay) {
|
|
case 'a' :
|
|
pin = PINA;
|
|
break;
|
|
case 'b' :
|
|
pin = PINB;
|
|
break;
|
|
case 'c' :
|
|
pin = PINC;
|
|
break;
|
|
case 'd' :
|
|
pin = PIND;
|
|
break;
|
|
}
|
|
|
|
gpio_put(pin, state);
|
|
}
|
|
|
|
int main() {
|
|
char command_string[MAX_COMMAND_LENGTH + 1];
|
|
command_string[0] = 0;
|
|
uint command_len = 0;
|
|
|
|
uart_init(UART_ID, 9600);
|
|
gpio_set_function(UART_TX_PIN, GPIO_FUNC_UART);
|
|
gpio_set_function(UART_RX_PIN, GPIO_FUNC_UART);
|
|
|
|
uart_set_hw_flow(UART_ID, false, false);
|
|
uart_set_format(UART_ID, DATA_BITS, STOP_BITS, PARITY);
|
|
|
|
gpio_init(PINA);
|
|
gpio_init(PINB);
|
|
gpio_init(PINC);
|
|
gpio_init(PIND);
|
|
|
|
gpio_set_dir(PINA, GPIO_OUT);
|
|
gpio_set_dir(PINB, GPIO_OUT);
|
|
gpio_set_dir(PINC, GPIO_OUT);
|
|
gpio_set_dir(PIND, GPIO_OUT);
|
|
|
|
gpio_put(PINA, 1);
|
|
gpio_put(PINB, 1);
|
|
gpio_put(PINC, 1);
|
|
gpio_put(PIND, 1);
|
|
|
|
bool eol;
|
|
char word[9];
|
|
char relay;
|
|
while (true) {
|
|
read_word(UART_ID, word, 9, &eol);
|
|
|
|
if (strcmp(word, "on") == 0) {
|
|
if (eol) {
|
|
uart_puts(UART_ID, "Missing argument: n");
|
|
continue;
|
|
}
|
|
relay = uart_getc(UART_ID);
|
|
finish_line(UART_ID);
|
|
set_power_state(relay, true);
|
|
} else if (strcmp(word, "off") == 0) {
|
|
if (eol) {
|
|
uart_puts(UART_ID, "Missing argument: n");
|
|
continue;
|
|
}
|
|
relay = uart_getc(UART_ID);
|
|
finish_line(UART_ID);
|
|
set_power_state(relay, false);
|
|
} else if (strcmp(word, "temps") == 0) {
|
|
uart_puts(UART_ID, "Not implemented yet");
|
|
}
|
|
}
|
|
}
|