- Thu Dec 03, 2020 11:58 am
#89682
In an attempt to display output from DJRobots weather station on the internet I have the following code.
It all seems to work perfectly well except it does not receive any data from the serial port.
Please tell me how I got this wrong.
Code: Select all
#include <ESP8266WiFi.h>
#include <SoftwareSerial.h>
const char* ssid = "MySSID";
const char* password ="MyPassword";
unsigned long Secs = 0;
bool newData = 0;
bool err =1;
char data[53];
byte i = 0 ;
byte x = 0 ;
WiFiServer server(80);
SoftwareSerial swSer(D1, D2, false); //, 256);
void setup()
{
Serial.begin(115200); // This is the baud rate for ESP's Serial at USB which can be viewed in Arduino IDE Serial monitor
swSer.begin(9600); // This is the baud rate for esps Software serial at pins D1 and D2 so it can communicate with arduino
delay(10);
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");
server.begin();
Serial.println("Waiting for the IP Add...");
delay(5000);
Serial.println(WiFi.localIP());
}
void loop()
{
if (swSer.available() > 0 )
{
char Z = swSer.read();
if(Z=='c') // match first Character to check "validity"
{ // and this letter 'c' is not stored in the array below
newData=1;
Secs=millis()/1000;
for(i= 0; i< 52; )
{
data[i] = swSer.read();
i++;
data[i] = '\0';
}
for(i=0; i<52;)
{ // serial print to arduino ide monitor via usb,all the chars stored in data array
Serial.print("char number: "); // and print char number the INDEX number starting from zero
// the actual first char is the Letter "Z' which is not stored
Serial.println(i);
Serial.println(data[i]);
i++;
}
}
else
{
err=1;
}
}
// setStatus();
sendHtml();
if(millis()/1000 -Secs > 30 )
{
Serial.println("Resetting Arrays");
Serial.println(Secs);
// ResetArrays();
Secs=millis()/1000;
}
}
int transCharToInt(char *_buffer,int _start,int _stop) //char to int）
{
int _index;
int result = 0;
int num = _stop - _start + 1;
int _temp[num];
for (_index = _start;_index <= _stop;_index ++)
{
_temp[_index - _start] = _buffer[_index] - '0';
result = 10*result + _temp[_index - _start];
}
return result;
}
int WindDirection() //Wind Direction
{
return transCharToInt(data,1,3);
}
float WindSpeedAverage() //air Speed (1 minute)
{
float temp = 0.44704 * transCharToInt(data,5,7);
return temp;
}
float WindSpeedMax() //Max air speed (5 minutes)
{
float temp = 0.44704 * transCharToInt(data,9,11);
return temp;
}
float Temperature() //Temperature ("C")
{
float temp = (transCharToInt(data,13,15) - 32.00) * 5.00 / 9.00;
return temp;
}
float RainfallOneHour() //Rainfall (1 hour)
{
float temp = transCharToInt(data,17,19) * 25.40 * 0.01;
return temp;
}
float RainfallOneDay() //Rainfall (24 hours)
{
float temp = transCharToInt(data,21,23) * 25.40 * 0.01;
return temp;
}
int Humidity() //Humidity
{
return transCharToInt(data,25,26);
}
float BarPressure() //Barometric Pressure
{
float temp = transCharToInt(data,28,32);
return temp / 10.00;
}
void sendHtml()
{
WiFiClient client = server.available();
if (client)
{
Serial.println("New client");
boolean blank_line = true;
while (client.connected())
{
if (client.available())
{
char c = client.read();
if (c == '\n' && blank_line)
{
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html><center>");
client.println("<head><meta http-equiv='refresh' content='5'/></head><body><h1>Esp8266 Serial to Wifi Weather Monitor Ver: 1.0</h1>");
client.println("Wind Direction: ");
client.println(WindDirection());
client.println("<br>");
client.println("Average Wind Speed (One Minute): ");
client.println(WindSpeedAverage());
client.println("m/s <br>");
client.println("Max Wind Speed (Five Minutes): ");
client.println(WindSpeedMax());
client.println("m/s <br>");
client.println("Rain Fall (One Hour): ");
client.println(RainfallOneHour());
client.println("mm <br>");
client.println("Rain Fall (24 Hour): ");
client.println(RainfallOneDay());
client.println("mm <br>");
client.println("Temperature: ");
client.println(Temperature());
client.println("C <br> ");
client.println("Humidity: ");
client.println(Humidity());
client.println("% <br>");
client.println("Barometric Pressure: ");
client.println(BarPressure());
client.println("hPa <br>");
client.println("");
client.println("");
client.println("</center></body></html>");
break;
}
if (c == '\n')
{
blank_line = true;
}
else if (c != '\r')
{
blank_line = false;
}
}
}
delay(1);
client.stop(); // closing the client connection
Serial.println("Client disconnected.");
}
}
It all seems to work perfectly well except it does not receive any data from the serial port.
Please tell me how I got this wrong.
