Hi
I get this error when compiling
Any ideas?
D:\Gdrive\NAS\Arduino\libraries\ESP8266WiFi\src\ESP8266WiFiAP.cpp:29:10: fatal error: LwipDhcpServer-NonOS.h: No such file or directory
Multiple libraries were found for "ESP8266WiFi.h"
29 | #include <LwipDhcpServer-NonOS.h>
Used: D:\Gdrive\NAS\Arduino\libraries\ESP8266WiFi
| ^~~~~~~~~~~~~~~~~~~~~~~~
Not used: C:\Users\john\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\ESP8266WiFi
compilation terminated.
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).
This is my code
//https://roboticadiy.com/esp8266-iot-live-sensor-data-plotter-to-web-page/
// Node MCU ESP8266 12E
#include <ESP8266WiFi.h>
#include <ESPAsyncWebServer.h>
#include "DHT.h"
#include <ESPAsyncTCP.h>
//WiFi
char ssid[] = "a";
char wifipass[] = "aaaaaaaa";
#define DHTPIN 4 // Digital pin 2 (GPIO 4) connected to the DHT sensor
// Uncomment the type of sensor in use:
//#define DHTTYPE DHT11 // DHT 11
#define DHTTYPE DHT22 // DHT 22 (AM2302)
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
DHT dht(DHTPIN, DHTTYPE);
// current temperature & humidity, this will be updated in loop function
float t = 0.0;
float tf = 0.0;
float h = 0.0;
// Create AsyncWebServer object on port 80
AsyncWebServer server(80);
unsigned long previousMillis = 0; //stoe last time DHT was updated
const long interval = 1000; // Updates DHT readings every 1 seconds
//web page
const char index_html[] PROGMEM = R"webpage(
<!DOCTYPE HTML><html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://code.highcharts.com/8.0/highcharts.js"></script>
<style>
body {
min-width: 300px;
max-width: 800px;
height: 400px;
margin: 0 auto;
}
h2 {
font-family: Arial;
font-size: 2.5rem;
text-align: center;
}
</style>
</head>
<body>
<h2>ESP8266 Weather Station Chart</h2>
<div id="temperature-chart" class="container"></div>
<div id="fahrenheit-chart" class="container"></div>
<div id="humidity-chart" class="container"></div>
</body>
<script>
var chartT = new Highcharts.Chart({
chart:{ renderTo : 'temperature-chart' },
title: { text: 'Temperature in Degree Celsius' },
series: [{
showInLegend: false,
data: []
}],
plotOptions: {
line: { animation: false,
dataLabels: { enabled: true }
},
series: { color: '#059e8a' }
},
xAxis: { type: 'datetime',
dateTimeLabelFormats: { second: '%H:%M:%S' }
},
yAxis: {
title: { text: 'Temperature (Celsius)' }
},
credits: { enabled: false }
});
setInterval(function ( ) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var x = (new Date()).getTime(),
y = parseFloat(this.responseText);
if(chartT.series[0].data.length > 50) {
chartT.series[0].addPoint([x, y], true, true, true);
} else {
chartT.series[0].addPoint([x, y], true, false, true);
}
}
};
xhttp.open("GET", "/temperature", true);
xhttp.send();
}, 1000 ) ;
var chartF = new Highcharts.Chart({
chart:{ renderTo:'fahrenheit-chart' },
title: { text: 'Temperature in Fahrenheit' },
series: [{
showInLegend: false,
data: []
}],
plotOptions: {
line: { animation: false,
dataLabels: { enabled: true }
}
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: { second: '%H:%M:%S' }
},
yAxis: {
title: { text: 'fahrenheit (F)' }
},
credits: { enabled: false }
});
setInterval(function ( ) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var x = (new Date()).getTime(),
y = parseFloat(this.responseText);
//console.log(this.responseText);
if(chartF.series[0].data.length > 50) {
chartF.series[0].addPoint([x, y], true, true, true);
} else {
chartF.series[0].addPoint([x, y], true, false, true);
}
}
};
xhttp.open("GET", "/fahrenheit", true);
xhttp.send();
}, 1000 ) ;
var chartH = new Highcharts.Chart({
chart:{ renderTo:'humidity-chart' },
title: { text: 'Humidity (%)' },
series: [{
showInLegend: false,
data: []
}],
plotOptions: {
line: { animation: false,
dataLabels: { enabled: true }
},
series: { color: '#18009c' }
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: { second: '%H:%M:%S' }
},
yAxis: {
title: { text: 'Humidity (%)' }
},
credits: { enabled: false }
});
setInterval(function ( ) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var x = (new Date()).getTime(),
y = parseFloat(this.responseText);
//console.log(this.responseText);
if(chartH.series[0].data.length > 50) {
chartH.series[0].addPoint([x, y], true, true, true);
} else {
chartH.series[0].addPoint([x, y], true, false, true);
}
}
};
xhttp.open("GET", "/humidity", true);
xhttp.send();
}, 1000 ) ;
</script>
</html>)webpage";
void setup() {
// Serial port for debugging purposes
Serial.begin(115200);
// Connect to Wi-Fi
WiFi.begin(ssid, password);
Serial.println("Connecting to WiFi");
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println(".");
}
// Print ESP32 Local IP Address
Serial.println(WiFi.localIP());
// Route for root / web page
server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) {
request->send_P(200, "text/html", index_html);
});
server.on("/temperature", HTTP_GET, [](AsyncWebServerRequest * request) {
request->send_P(200, "text/plain", String(t).c_str());
});
server.on("/fahrenheit", HTTP_GET, [](AsyncWebServerRequest * request) {
request->send_P(200, "text/plain", String(tf).c_str());
});
server.on("/humidity", HTTP_GET, [](AsyncWebServerRequest * request) {
request->send_P(200, "text/plain", String(h).c_str());
});
// Start server
server.begin();
dht.begin();
}
void loop() {
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
// save the last time you updated the DHT values
previousMillis = currentMillis;
// Read temperature as Celsius (the default)
float currentT = dht.readTemperature();
// if temperature read failed, we don't want to change t value
if (isnan(currentT)) {
Serial.println("Failed to read from DHT sensor!");
Serial.println(currentT);
}
else {
t = currentT;
Serial.println(t);
}
// Read temperature as Fahrenheit
float currentTf = dht.readTemperature(true);
// if temperature read failed, we don't want to change tf value
if (isnan(currentTf)) {
Serial.println("Failed to read from DHT sensor!");
}
else {
tf = currentTf;
Serial.println(tf);
}
// Read Humidity
float currentH = dht.readHumidity();
// if humidity read failed, we don't want to change h value
if (isnan(currentH)) {
Serial.println("Failed to read from DHT sensor!");
}
else {
h = currentH;
Serial.println(h);
}
}
}
