ESP12F HTTP Throwing Exceptions
Posted: Fri Apr 14, 2017 1:52 pmI am working on RGB led controller and controlling the lights from mobile app and sending the HTTP commands to ESP in AP mode.
The code works perfectly initially and when using few commands and when speed up the HTTP commands from Mobile app to ESP, the ESP works for sometime and then crashes and reset.
I am sending around 20-30 request per second.
I am using git core version of ESP8266 library for Arduino.
How to solve this issue, earlier it was solved by using the git core version, but it is crashing again. What to do?
Here is the code : -
The code works perfectly initially and when using few commands and when speed up the HTTP commands from Mobile app to ESP, the ESP works for sometime and then crashes and reset.
I am sending around 20-30 request per second.
I am using git core version of ESP8266 library for Arduino.
How to solve this issue, earlier it was solved by using the git core version, but it is crashing again. What to do?
Here is the code : -
Code: Select all
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#define RED_LED 12
#define WHITE_LED 13
#define BLUE_LED 14 //16 //14
#define GREEN_LED 16 //14 //15
char ssid[10] = "Downlight";
WiFiServer server(5045);
WiFiClient client;
void setup()
{
pinMode(RED_LED, OUTPUT);
pinMode(WHITE_LED, OUTPUT);
pinMode(BLUE_LED, OUTPUT);
pinMode(GREEN_LED, OUTPUT);
WiFi.mode(WIFI_AP);
Serial.begin(115200); //Start communication between the ESP8266-12E and the monitor window
WiFi.softAP(ssid);
server.begin();
}
void loop()
{
client = server.available();
if (!client)
{
return;
}
String req = client.readStringUntil('\r');
Serial1.println(req);
client.flush();
if ((req.indexOf("/RGB/") != -1))
{
int pos = req.length();
int ind1 = req.indexOf("/RGB/") + 5;
String teststring = req.substring(ind1, pos);
int ind2 = teststring.indexOf("/");
String hexRGB = req.substring(ind1, ind2 + ind1);
Serial.print("\n");
Serial.print("Hex RGB: ");
Serial.print(hexRGB);
hexRGB.toUpperCase();
char c[6];
hexRGB.toCharArray(c, 7);
long r = convertToInt(c[0], c[1]); //red
long g = convertToInt(c[2], c[3]); //green
long b = convertToInt(c[4], c[5]); //blue
analogWrite(RED_LED, r * 4);
analogWrite(GREEN_LED, g * 4);
analogWrite(BLUE_LED, b * 4);
client.flush();
}
}
int convertToInt(char upper, char lower)
{
int uVal = (int)upper;
int lVal = (int)lower;
uVal = uVal > 64 ? uVal - 55 : uVal - 48;
uVal = uVal << 4;
lVal = lVal > 64 ? lVal - 55 : lVal - 48;
return uVal + lVal;
}