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Description
Settings in IDE
- Module: Nodemcu
- Upload Using: SERIAL
- Upload Speed: 9600
Problem Description
When I launching only ESP8266WebServer with softAP mode, it works fine.
(I could see the webpage I made.)
When I checking only gps data with TinyGPS library, it works fine.
But When I add reading gps data function to my webserver routine, it doesn't work.
``
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <SoftwareSerial.h>
#include <TinyGPS.h>
//server setting
const char* ssid = "uuuu";
const char* password = "123456789";
ESP8266WebServer server(80);
//GPS setting
#define RXPIN 14
#define TXPIN 12
#define GPSBAUD 9600
TinyGPS gps;
SoftwareSerial ss(TXPIN, RXPIN);
float flat=0, flon=0;
String strDate = "";
void handleRoot() {
server.send(200, "text/html", prepareHtmlPage());
}
String prepareHtmlPage()
{
String htmlPage =
String("<!DOCTYPE HTML>") +
"<html>" +
"<meta http-equiv=\"Content-Type\" Content=\"text/html; charset=utf-8\">\r\n" +
"<meta name=\"viewport\" content=\"width=device-width, user-scalable=no\">\r\n"+
"<style>body {margin: 0;font-family: Arial, Helvetica, sans-serif;}\r\n"+
".topnav {overflow: hidden;background-color: #333;}\r\n"+
".topnav a {float: left;color: #f2f2f2;text-align: center;padding: 14px 16px;text-decoration: none;font-size: 17px;}\r\n"+
".topnav a:hover {background-color: #ddd;color: black;}</style></head>\r\n"+
"<body onload='status1()'>\r\n"+
"<div class='topnav'>\r\n"+
"<a class='active' href='#home' onclick='status1()'>현재 상태</a><a href='#about' onclick='about()'>About</a>\r\n" +
"</div><div id='content' style='padding-left:16px'></div></body>\r\n"+
"<div id='btm'> <input type='button' onclick='location.reload(true)' value='Refresh'> </div>\r\n"+
"<script>\r\n"+
"function status1()\r\n"+
"{var str = '<h3>current : sss </h3>'\r\n;"+
"str += '<h3> Lat, Lon : dsd </h3>'\r\n;" +
//"{var str = '<h3>current : " + strDate + "</h3>'\r\n;"+
//"str += '<h3> Lat, Lon : " + flat + ", " + flon + "</h3>'\r\n;" +
"document.getElementById('btm').style.display='block'\r\n"+
"document.getElementById('content').innerHTML = str; }\r\n"+
"function about()\r\n"+
"{var str = '<h2>water</h2>';\r\n"+
"str += '<p> xxxx : xxxx </p>';str += '<p> HP : xxxxxx </p>';\r\n"+
"document.getElementById('btm').style.display='none'\r\n"+
"document.getElementById('content').innerHTML = str;}\r\n"+
"</script>\r\n"+
"</html>\r\n" +
"\r\n";
Serial.println(htmlPage);
return htmlPage;
}
void setup() {
// put your setup code here, to run once:
delay(10);
Serial.begin(115200);
//ss.begin(GPSBAUD);
Serial.println("Initializing Soft AP Config mode...");
IPAddress Ip(192, 168, 20, 1);
IPAddress NMask(255, 255, 255, 0);
WiFi.softAPConfig(Ip, Ip, NMask);
WiFi.softAP(ssid, password);
IPAddress myIP = WiFi.softAPIP();
Serial.print("AP IP address: ");
Serial.println(myIP);
server.on("/", handleRoot);
server.begin();
Serial.println("HTTP server started");
}
void loop() {
// put your main code here, to run repeatedly:
server.handleClient();
bool newData = false;
unsigned long chars;
unsigned short sentences, failed;
// For one second we parse GPS data and report some key values
for (unsigned long start = millis(); millis() - start < 1000;)
{
while (ss.available())
{
char c = ss.read();
//Serial.write(c); // uncomment this line if you want to see the GPS data flowing
if (gps.encode(c)) // Did a new valid sentence come in?
newData = true;
}
}
if (newData)
{
unsigned long age;
gps.f_get_position(&flat, &flon, &age);
Serial.print(" LAT=");
Serial.print(flat == TinyGPS::GPS_INVALID_F_ANGLE ? 0.0 : flat, 6);
Serial.print(" LON=");
Serial.println(flon == TinyGPS::GPS_INVALID_F_ANGLE ? 0.0 : flon, 6);
}
gps.stats(&chars, &sentences, &failed);
if (chars == 0)
Serial.println("** No characters received from GPS: check wiring **");
}
And then.
- I couldn't find wifi in my wifi list in laptop.
- I could check normal GPS data.
So When I comment line below "server.handleClient();", I could find nodeMCU wifi and open
web page what I made.
I think this problem related with SoftwareSerial and handclient().
I'm not sure...
Please help me.
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