Hi Guys
Pretty much a noob here as it comes to arduino coding, I have a decent understanding of java but sometime the simplest things throw me for a loop. I have started a project with an old phone as a media center and seeing as it overheats in summer as its in full sun on the dashboard I added a Peltier cooler to the back and used an Wemos D1 mini with a soft AP configured, works well using tasker to send http requests to the Wemos.
However I need some default backup as sometimes the phone drops wifi connection and I dont want the peltier to draw full amps for an unlimited time constraint. I have two options I can control the peltier time on on the arduino side or the phone side. but I recently had an instance where the phone sent the ON command and then proceded to disconnect and never sent the OFF command. I have tried to get the Wemos to sense a client is present, which works fine, but when checking if the client is present and status is HIGH then I get an error that i cannot fix. at least from my view.
Hope you guys can help a brother out.
Kind regards
AsaltedPnut
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
extern "C" {
#include<user_interface.h>
}
/* Put your SSID & Password */
const char* ssid = "AsaltedPnut D1"; // Enter SSID here
const char* password = "25042010"; //Enter Password here
/* Put IP Address details */
IPAddress local_ip(192,168,1,1);
IPAddress gateway(192,168,1,1);
IPAddress subnet(255,255,255,0);
ESP8266WebServer server(80);
uint8_t LED1pin = D1;
bool LED1status = LOW;
uint8_t LED2pin = D6;
bool LED2status = LOW;
void setup() {
Serial.begin(115200);
pinMode(LED1pin, OUTPUT);
pinMode(LED2pin, OUTPUT);
WiFi.softAP(ssid, password);
IPAddress myIP = WiFi.softAPIP();
Serial.print("AP IP address: ");
Serial.println(myIP);
WiFi.softAPConfig(local_ip, gateway, subnet);
delay(100);
server.on("/", handle_OnConnect);
server.on("/led1on", handle_led1on);
server.on("/led1off", handle_led1off);
server.on("/led2on", handle_led2on);
server.on("/led2off", handle_led2off);
server.onNotFound(handle_NotFound);
server.begin();
Serial.println("HTTP server started");
}
void loop() {
server.handleClient();
if(LED1status)
{digitalWrite(LED1pin, HIGH);}
else
{digitalWrite(LED1pin, LOW);}
if(LED2status)
{digitalWrite(LED2pin, HIGH);}
else
{digitalWrite(LED2pin, LOW);}
client_status();
delay(500);
}
void handle_OnConnect() {
LED1status = LOW;
LED2status = LOW;
Serial.println("Peltier Status: OFF | GPIO6 Status: OFF");
server.send(200, "text/html", SendHTML(LED1status,LED2status));
}
void handle_led1on() {
LED1status = HIGH;
Serial.println("GPIO7 Status: ON");
server.send(200, "text/html", SendHTML(true,LED2status));
}
void handle_led1off() {
LED1status = LOW;
Serial.println("GPIO7 Status: OFF");
server.send(200, "text/html", SendHTML(false,LED2status));
}
void handle_led2on() {
LED2status = HIGH;
Serial.println("GPIO6 Status: ON");
server.send(200, "text/html", SendHTML(LED1status,true));
}
void handle_led2off() {
LED2status = LOW;
Serial.println("GPIO6 Status: OFF");
server.send(200, "text/html", SendHTML(LED1status,false));
}
void handle_NotFound(){
server.send(404, "text/plain", "Not found");
}
void client_status() {
unsigned char number_client; //<<< complains about this variable
int num = number_client;
struct station_info *stat_info;
struct ip_addr *IPaddress;
IPAddress address;
int i=1;
number_client= wifi_softap_get_station_num();
stat_info = wifi_softap_get_station_info();
Serial.print(" Total Connected Clients are = ");
Serial.println(number_client);
while (stat_info != NULL) {
Serial.print("client= ");
Serial.print(i);
Serial.print(" IP adress is = ");
Serial.print((address));
Serial.print(" with MAC adress is = ");
Serial.print(stat_info->bssid[0],HEX);Serial.print(" ");
Serial.print(stat_info->bssid[1],HEX);Serial.print(" ");
Serial.print(stat_info->bssid[2],HEX);Serial.print(" ");
Serial.print(stat_info->bssid[3],HEX);Serial.print(" ");
Serial.print(stat_info->bssid[4],HEX);Serial.print(" ");
Serial.print(stat_info->bssid[5],HEX);Serial.print(" ");
stat_info = STAILQ_NEXT(stat_info, next);
i++;
Serial.println();
}
// HERE IS MY ISSUE
// if(num=0 && LED1status=HIGH){
// digitalWrite(LED1pin, LOW);
// }
}
String SendHTML(uint8_t led1stat,uint8_t led2stat){
String ptr = "<!DOCTYPE html> <html>\n";
ptr +="<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, user-scalable=no\">\n";
ptr +="<title>LED Control</title>\n";
ptr +="<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}\n";
ptr +="body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;} h3 {color: #444444;margin-bottom: 50px;}\n";
ptr +=".button {display: block;width: 80px;background-color: #1abc9c;border: none;color: white;padding: 13px 30px;text-decoration: none;font-size: 25px;margin: 0px auto 35px;cursor: pointer;border-radius: 4px;}\n";
ptr +=".button-on {background-color: #1abc9c;}\n";
ptr +=".button-on:active {background-color: #16a085;}\n";
ptr +=".button-off {background-color: #34495e;}\n";
ptr +=".button-off:active {background-color: #2c3e50;}\n";
ptr +="p {font-size: 14px;color: #888;margin-bottom: 10px;}\n";
ptr +="</style>\n";
ptr +="</head>\n";
ptr +="<body>\n";
ptr +="<h1>ESP8266 Web Server</h1>\n";
ptr +="<h3>Using Access Point(AP) Mode</h3>\n";
if(led1stat)
{ptr +="<p>LED1 Status: ON</p><a class=\"button button-off\" href=\"/led1off\">OFF</a>\n";}
else
{ptr +="<p>LED1 Status: OFF</p><a class=\"button button-on\" href=\"/led1on\">ON</a>\n";}
/* if(led2stat)
{ptr +="<p>LED2 Status: ON</p><a class=\"button button-off\" href=\"/led2off\">OFF</a>\n";}
else
{ptr +="<p>LED2 Status: OFF</p><a class=\"button button-on\" href=\"/led2on\">ON</a>\n";}
*/
ptr +="</body>\n";
ptr +="</html>\n";
return ptr;
}