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By magicsmoke
#6166 I'm trying to implement some sort of blinky (https://github.com/esp8266/source-code- ... ser_main.c) over TCP program. I have the ESP8266 making requests and receiving data from a python TCP server successfully. The idea is that it would then check if the data says "on" or "off" and set GPIO2 accordingly. blinky works successfully for me, and I made sure to take the initialization calls from it, however the TCP version doesn't. I think something in this program's setup interferes with the GPIO. Or did I just forget some init call? I can't figure it out. BTW it does get to networkRecvCb and prints out "|2|0|8|" like expected when I send "on" and "|3|-8|0|" when I send "off".

Code: Select all#include "ets_sys.h"
#include "osapi.h"
#include "gpio.h"
#include "os_type.h"
#include "user_config.h"
#include "user_interface.h"
#include "uart.h"
 
#include "c_types.h"
#include "espconn.h"
#include "mem.h"
#include "ip_addr.h"

#define user_procTaskPrio        0
#define user_procTaskQueueLen    1
os_event_t    user_procTaskQueue[user_procTaskQueueLen];
static void user_procTask(os_event_t *events);
static void ICACHE_FLASH_ATTR networkConnectedCb(void *arg);
static void ICACHE_FLASH_ATTR networkDisconCb(void *arg);
static void ICACHE_FLASH_ATTR networkReconCb(void *arg, sint8 err);
static void ICACHE_FLASH_ATTR networkRecvCb(void *arg, char *data, unsigned short len);
static void ICACHE_FLASH_ATTR networkSentCb(void *arg);
void ICACHE_FLASH_ATTR network_init();
 
LOCAL os_timer_t network_timer;
 
static void ICACHE_FLASH_ATTR networkServerFoundCb(const char *name, ip_addr_t *ip, void *arg) {
  static esp_tcp tcp;
  struct espconn *conn=(struct espconn *)arg;
  IP4_ADDR(ip, 192, 168, 1, 12);
  if (ip==NULL) {
    //os_printf("Nslookup failed :/ Trying again...\n");
    uart0_tx_buffer("lfai",4);
    network_init();
  }
  uart0_tx_buffer("lokk",4);
  char page_buffer[20];
  os_sprintf(page_buffer,"DST: %d.%d.%d.%d",
  *((uint8 *)&ip->addr), *((uint8 *)&ip->addr + 1),
  *((uint8 *)&ip->addr + 2), *((uint8 *)&ip->addr + 3));
  uart0_tx_buffer(page_buffer,strlen(page_buffer));
 
  conn->type=ESPCONN_TCP;
  conn->state=ESPCONN_NONE;
  conn->proto.tcp=&tcp;
  conn->proto.tcp->local_port=espconn_port();
  conn->proto.tcp->remote_port=29876;
  os_memcpy(conn->proto.tcp->remote_ip, &ip->addr, 4);
  espconn_regist_connectcb(conn, networkConnectedCb);
  espconn_regist_disconcb(conn, networkDisconCb);
  espconn_regist_reconcb(conn, networkReconCb);
  espconn_regist_recvcb(conn, networkRecvCb);
  espconn_regist_sentcb(conn, networkSentCb);
  espconn_connect(conn);
}
 
static void ICACHE_FLASH_ATTR networkSentCb(void *arg) {
  uart0_tx_buffer("sent",4);
}

void pi(int i) {
  char res[8*sizeof(int)];
  os_sprintf(res, "%d", i);
  uart0_sendStr(res);
}

static void ICACHE_FLASH_ATTR networkRecvCb(void *arg, char *data, unsigned short len) {
 
  uart0_tx_buffer("recv",4); 
  struct espconn *conn=(struct espconn *)arg;
  int x;
  uart0_tx_buffer(data,len);
  uart0_sendStr("|");
  pi(len);
  uart0_sendStr("|");
  pi(strcmp(data,"on"));
  uart0_sendStr("|");
  pi(strcmp(data,"off"));
  uart0_sendStr("|");
  if(strcmp(data,"on") == 0)
    gpio_output_set(BIT2, 0, BIT2, 0);
  else if(strcmp(data,"off") == 0)
    gpio_output_set(0, BIT2, BIT2, 0);
}
 
static void ICACHE_FLASH_ATTR networkConnectedCb(void *arg) {
 
  uart0_tx_buffer("conn",4);
  struct espconn *conn=(struct espconn *)arg;
 
  char *data = "GET / HTTP/1.0\r\n\r\n\r\n";
  sint8 d = espconn_sent(conn,data,strlen(data));
 
  espconn_regist_recvcb(conn, networkRecvCb);
  uart0_tx_buffer("cend",4);
}
 
static void ICACHE_FLASH_ATTR networkReconCb(void *arg, sint8 err) {
  uart0_tx_buffer("rcon",4);
//  os_printf("Reconnect\n\r");
  network_init();
}
 
static void ICACHE_FLASH_ATTR networkDisconCb(void *arg) {
  uart0_tx_buffer("dcon",4);
//  os_printf("Disconnect\n\r");
  network_init();
}
 
 
void ICACHE_FLASH_ATTR network_start() {
  static struct espconn conn;
  static ip_addr_t ip;
  //os_printf("Looking up server...\n");
  uart0_tx_buffer("look",4);
  espconn_gethostbyname(&conn, "www.google.com", &ip, networkServerFoundCb);
}
 
void ICACHE_FLASH_ATTR network_check_ip(void) {
  struct ip_info ipconfig;
  os_timer_disarm(&network_timer);
  wifi_get_ip_info(STATION_IF, &ipconfig);
  if (wifi_station_get_connect_status() == STATION_GOT_IP && ipconfig.ip.addr != 0) {
    char page_buffer[20];
    os_sprintf(page_buffer,"IP: %d.%d.%d.%d",IP2STR(&ipconfig.ip));
    uart0_tx_buffer(page_buffer,strlen(page_buffer));
    network_start();
  } else {
    //os_printf("No ip found\n\r");
    os_timer_setfn(&network_timer, (os_timer_func_t *)network_check_ip, NULL);
    os_timer_arm(&network_timer, 1000, 0);
  }
}
 
void ICACHE_FLASH_ATTR network_init() {
  os_timer_disarm(&network_timer);
  os_timer_setfn(&network_timer, (os_timer_func_t *)network_check_ip, NULL);
  os_timer_arm(&network_timer, 1000, 0);
}
//Do nothing function
static void ICACHE_FLASH_ATTR
user_procTask(os_event_t *events)
{
    os_delay_us(10);
}

//Init function
void ICACHE_FLASH_ATTR user_init() {
   gpio_init();
    PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_GPIO2);
    gpio_output_set(0, BIT2, BIT2, 0);
    uart_init(BIT_RATE_9600,BIT_RATE_9600);
    char ssid[32] = SSID;
    char password[64] = SSID_PASSWORD;
    struct station_config stationConf;
 
    //Set station mode
    wifi_set_opmode( 0x1 );
 
    //Set ap settings
    os_memcpy(&stationConf.ssid, ssid, 32);
    os_memcpy(&stationConf.password, password, 64);
    wifi_station_set_config(&stationConf);
 
    uart0_tx_buffer("init",4);
 
    //Start os task
    system_os_task(user_procTask, user_procTaskPrio,user_procTaskQueue, user_procTaskQueueLen);
 
    network_init();
}
User avatar
By omeranar1
#7744 Hi sorry my English im registered for u :D

if you use this simple codes
Code: Select allchar str[32]={"se\0"};
    int i=0;
    while(i<len-2)
    {
       str[i]=pdata[i];
       i++;
    }
    str[i]='\0';
    uart0_sendStr(str);

you can convert char to string and then you can compare your received signal any string for example
Code: Select allif (strcmp("off", str)  == 0)
   {
      gpio_output_set(0, BIT2, BIT2, 0);
      gpio_output_set(0, BIT0, BIT0, 0);
}