I am working on code related to sending an email through cc3100booster and msp432p401r. I am having an issue in connectivity of wifi in the module when the wifi connection code is provided in void setup(). I am providing mobile's hotspot and it gets connected and disconnected periodically. I require an continuous connection.
When the wifi connection code is written inside loop(), the connection problem is solved but a newer issue is arised i,e, the program is running for email but not for the server [In server program i am sending temperature and pulse count value to thingspeak.com to get a graphical representation of my data.]
moreover, despite of being present in loop, it executes only once. its a complete arcane issue for me. I am linking code below. please help me out with this.
#define TEMBOO_ACCOUNT "xxxxxxx" // your Temboo account name
#define TEMBOO_APP_KEY_NAME "xxxxxxx" // your Temboo app name
#define TEMBOO_APP_KEY "xxxxxxxx" // your Temboo app key
#define WIFI_SSID "xxxxxx" //hotspot name
#define WIFI_PASSWORD "xxxxxxx" //hotspot password
#ifndef __CC3200R1M1RGC__
#include <SPI.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <Temboo.h>
#endif
const String GMAIL_USER_NAME = "xxxxxxx"; //sender's email
const String GMAIL_APP_PASSWORD = "xxxxxx"; //sender's app password
const String TO_EMAIL_ADDRESS = "xxxxxxx"; //receiver's email
boolean attempted = false;
#include <LiquidCrystal.h>
LiquidCrystal lcd(13,33,12,24,5,25,6,26,27,8,28);
float temp;
float volt;
int sensorValue1;
int sensorValue2;
int count;
WiFiClient client;
char server[] = "api.thingspeak.com";
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
const unsigned long postingInterval = 10L * 1000L; // delay between updates, in milliseconds
void checkconnection()
{
int wifiStatus = WL_IDLE_STATUS;
// determine if the WiFi Shield is present.
Serial.print("\n\nShield:");
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("FAIL");
// if there's no WiFi shield, stop here.
while(true);
}
while(wifiStatus != WL_CONNECTED) {
Serial.print("WiFi:");
wifiStatus = WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
if (wifiStatus == WL_CONNECTED) {
Serial.println("OK");
} else {
Serial.println("FAIL");
}
delay(1000);
}
Serial.println("Waiting for an ip address");
while (WiFi.localIP() == INADDR_NONE) {
// print dots while we wait for an ip addresss
Serial.print(".");
delay(300);
}
Serial.println("\nIP Address obtained");
// We are connected and have an IP address.
// Print the WiFi status.
printWifiStatus();
}
void serverprog()
{
while (client.available()) {
char c = client.read();
Serial.write(c);
}
if (millis() - lastConnectionTime > postingInterval) {
httpRequest();
}
}
void httpRequest() {
// close any connection before send a new request.
// This will free the socket on the WiFi shield
client.stop();
// if there's a successful connection:
if (client.connect(server, 80)) {
Serial.println("connecting...");
char msgg[200];
sprintf(msgg,"GET /update?api_key=xxxxxxxxxxxxxxxx&field1=%f&field2=%d",temp,count); //have to make account on thingspeak.com and create channel then create 2 fields. then copy the WRITE API key in place of xxxxxxxxx
// send the HTTP PUT request:
client.println(msgg);
client.println("Host: api.thingspeak.com");
client.println("User-Agent: Energia/1.1");
client.println("Connection: close");
client.println();
// note the time that the connection was made:
lastConnectionTime = millis();
}
else {
// if you couldn't make a connection:
Serial.println("connection failed");
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
void setup() {
lcd.begin(16, 2);
Serial.begin(9600);
Serial.println("processing......");
}
void loop() {
int sensorValue1 = analogRead(A0);
lcd.clear();
lcd.setCursor(0,2);
lcd.print("wait..");
/* lcd.setCursor(0,0);
lcd.print("temperature =");
lcd.setCursor(14,0);
lcd.print(temp);*/
Serial.println(sensorValue1);
volt=sensorValue1*3.22;
temp=volt/10;
Serial.println(volt);
Serial.println("temp=");
Serial.println(temp);
delay(10);
int sensorValue2;
unsigned long start=millis();
analogReadResolution(10);
unsigned long currentValue;
float x=0;
int y;
count=0;
delay(3000);
lcd.clear();
lcd.setCursor(0,2);
lcd.print("detecting.......");
do
{
int sensorValue2 = analogRead(A1);
if(sensorValue2 > x)
{
x=sensorValue2;
y=1;
}
else if(sensorValue2 < x)
{
x=sensorValue2;
if(y==1)
{
count++;
y=0;
}
}
currentValue=millis();
}
while(currentValue-start<=30000);
count=(count*2)/10000;
lcd.clear();
lcd.setCursor(0,0);
lcd.print("temperature =");
lcd.setCursor(14,0);
lcd.print(temp);
lcd.setCursor(0,2);
lcd.print("pulse count =");
lcd.setCursor(14,1);
lcd.print(count);
delay(1000);
Serial.println(sensorValue2);
Serial.println("pulse count=");
Serial.println(count);
checkconnection();
delay(3000);
if (!attempted) {
Serial.println("Running SendAnEmail...");
TembooChoreo SendEmailChoreo(client);
SendEmailChoreo.begin();
SendEmailChoreo.setAccountName(TEMBOO_ACCOUNT);
SendEmailChoreo.setAppKeyName(TEMBOO_APP_KEY_NAME);
SendEmailChoreo.setAppKey(TEMBOO_APP_KEY);
SendEmailChoreo.setChoreo("/Library/Google/Gmail/SendEmail");
SendEmailChoreo.addInput("Username", GMAIL_USER_NAME);
SendEmailChoreo.addInput("Password", GMAIL_APP_PASSWORD);
SendEmailChoreo.addInput("ToAddress", TO_EMAIL_ADDRESS);
SendEmailChoreo.addInput("Subject", "Recieved An Email???");
char msg[100];
sprintf (msg," Body Temperature=%f, Pulse count=%d",temp,count);
SendEmailChoreo.addInput("MessageBody", msg);
unsigned int returnCode = SendEmailChoreo.run();
if (returnCode == 0) {
Serial.println("Success! Email sent!");
} else {
while (SendEmailChoreo.available()) {
char c = SendEmailChoreo.read();
Serial.print(c);
}
}
SendEmailChoreo.close();
}
serverprog();
lcd.clear();
}
