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#include <stdio.h>
#include <sys/socket.h>
#include "rtc_wdt.h"
#include "driver/uart.h"
#include "EZADC.h"
#include "rgb_led.h"
#include "EZWIFI.h"
rgb_led MY_LED;
char *data = (char *) "1\n";
void socket_transmitter_sta_loop(bool (*is_wifi_connected)()) {
int socket_fd = -1;
while (1) {
close(socket_fd);
char *ip = (char *) "192.168.4.1";
struct sockaddr_in caddr;
caddr.sin_family = AF_INET;
caddr.sin_port = htons(2223);
while (!is_wifi_connected()) {
// wait until connected to AP
printf("wifi not connected. waiting...\n");
vTaskDelay(1000 / portTICK_PERIOD_MS);
}
printf("initial wifi connection established.\n");
if (inet_aton(ip, &caddr.sin_addr) == 0) {
printf("ERROR: inet_aton\n");
continue;
}
socket_fd = socket(PF_INET, SOCK_DGRAM, 0);
if (socket_fd == -1) {
printf("ERROR: Socket creation error [%s]\n", strerror(errno));
continue;
}
if (connect(socket_fd, (const struct sockaddr *) &caddr, sizeof(struct sockaddr)) == -1) {
printf("ERROR: socket connection error [%s]\n", strerror(errno));
continue;
}
printf("sending frames.\n");
int i = 0;
while (1) {
//double start_time = get_steady_clock_timestamp();
if (!is_wifi_connected()) {
printf("ERROR: wifi is not connected\n");
break;
}
if (sendto(socket_fd, &data, strlen(data), 0, (const struct sockaddr *) &caddr, sizeof(caddr)) !=
strlen(data)) {
vTaskDelay(1);
continue;
}
vTaskDelay(pdMS_TO_TICKS(100));
//double end_time = get_steady_clock_timestamp();
//lag = end_time - start_time;
}
}
}
/* TaskHandle_t xHandle = NULL; */
/* void vTask_socket_transmitter_sta_loop(void *pvParamteres) { */
/* for(;;) { */
/* socket_transmitter_sta_loop(&is_wifi_connected); */
/* } */
/* } */
static void echo_task(void *arg)
{
/* Configure parameters of an UART driver,
* communication pins and install the driver */
uart_config_t uart_config = {
.baud_rate = 921600,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.source_clk = UART_SCLK_DEFAULT,
};
int intr_alloc_flags = 0;
ESP_ERROR_CHECK(uart_driver_install(0, 3072 * 2, 0, 0, NULL, intr_alloc_flags));
ESP_ERROR_CHECK(uart_param_config(0, &uart_config));
// Configure a temporary buffer for the incoming data
uint8_t *uart_data = (uint8_t *) malloc(3072);
while (1) {
// Read data from the UART
int len = uart_read_bytes(0, uart_data, (3072 - 1), 20 / portTICK_PERIOD_MS);
// Write data back to the UART
//uart_write_bytes(0, (const char *) uart_data, len);
if (len) {
uart_data[len] = '\0';
//ESP_LOGI(TAG, "Recv str: %s", (char *) uart_data);
if (strcmp((char *) uart_data, "red") == 0)
{
rgb_set_color(&MY_LED, rgb_red);
}
else if (strcmp((char *) uart_data, "blue") == 0)
{
rgb_set_color(&MY_LED, rgb_blue);
}
else if (strcmp((char *) uart_data, "green") == 0)
{
rgb_set_color(&MY_LED, rgb_green);
}
else if (strcmp((char *) uart_data, "yellow") == 0)
{
rgb_set_color(&MY_LED, rgb_yellow);
}
}
}
}
void app_main(void)
{
// Init LED
rgb_init_LED(&MY_LED, 27, 12, 13);
rgb_set_color(&MY_LED, rgb_black);
xTaskCreate(echo_task, "uart_echo_task", 3072, NULL, 10, NULL);
// Access point
setup_softap();
setup_csi();
for(;;) {
vTaskDelay(10);
}
// Station
/* setup_station(); */
/* setup_csi(); */
/* for(;;) { */
/* socket_transmitter_sta_loop(&is_wifi_connected); */
/* } */
}
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