- Wed Apr 13, 2016 6:35 am
#45410
Hi,
Does anyone know how can I increase data transfer speed between two ESPs. I send data from one ESP (client) to other ESP (server). On client ESP I test voltage level (LOW or HIGH) on two digital input pins and I need to send this data to other ESP as fast as possible. With them code that I have now, data transfer is between 0.5 and 1 second. I use two ESP 12E.
CLIENT
SERVER
Does anyone know how can I increase data transfer speed between two ESPs. I send data from one ESP (client) to other ESP (server). On client ESP I test voltage level (LOW or HIGH) on two digital input pins and I need to send this data to other ESP as fast as possible. With them code that I have now, data transfer is between 0.5 and 1 second. I use two ESP 12E.
CLIENT
Code: Select all
#include <ESP8266WiFi.h>
const char* ssid = "ateESPteam";
const char* password = "arminkozljak";
const char* host = "192.168.4.1";
const char* url = "";
String podatak;
bool stanje1,stanje2;
int GPIO12 = 12;
int GPIO4 = 4;
int pom;
void setup() {
Serial.begin(115200);
delay(10);
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
//pom = 0;
}
void loop() {
stanje1 = digitalRead(GPIO4);
delay(10);
stanje2=digitalRead(GPIO12);
delay(10);
if((stanje1 == LOW)&&(stanje2 == LOW))
podatak = "jedan";
else if((stanje1 == LOW)&&(stanje2 == HIGH))
podatak = "dva";
else if((stanje1 == HIGH)&&(stanje2 == LOW))
podatak = "tri";
else if((stanje1 == HIGH)&&(stanje2 == HIGH))
podatak = "cetiri";
WiFiClient client;
// Use WiFiClient class to create TCP connections
// This will send the request to the server
const int httpPort = 80;
if (client.connect(host, httpPort)) {
client.print(podatak);
}
else{
Serial.println("connection failed");
return;
}
}
SERVER
Code: Select all
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
/* Set these to your desired credentials. */
const char *ssid = "ateESPteam";
const char *password = "arminkozljak";
int GPIO5 = 5;
int analog;
String line = "";
WiFiClient client;
WiFiServer server(80);
void setup() {
pinMode(GPIO5, OUTPUT);
analog = 0;
delay(1000);
Serial.begin(115200);
Serial.println();
Serial.print("Configuring access point...");
/* You can remove the password parameter if you want the AP to be open. */
WiFi.softAP(ssid, password);
IPAddress myIP = WiFi.softAPIP();
Serial.print("AP IP address: ");
Serial.println(myIP);
server.begin();
Serial.println("server started");
}
void loop(){
delay(10);
if (!client)
{
client = server.available();
}
else
{
if (client.status() == CLOSED)
{
client.stop();
}
if (client.available() > 0)
{
line = client.readStringUntil('\r');
Serial.println(line);
if ((analog < 1023) && (line == "dva")){
analog = analog + 100;
analogWrite(GPIO5 , analog);
if (analog > 1000)
analog = 1023;
}
if ((analog > 1) && (line == "tri")){
analog = analog - 100;
analogWrite(GPIO5 , analog);
if (analog < 1)
analog = 0;
}
if (line == "GET /on HTTP/1.1"){
digitalWrite(GPIO5 , HIGH);
analog = 1023;}
if (line == "GET /off HTTP/1.1"){
digitalWrite(GPIO5 , LOW);
analog = 0;
}
line = "";
client.stop();
}
}
}
