ETHERCARD + THINGSPEAK + TL081CP

Hi,

I want to add tl081cp code to this code and get data. How do I add this code to the ethercard thingspeak code?

void setup()
{
Serial.begin(9600);
}

void loop()
{
int valueA0 = analogRead(A0);

// Convert 10 bit ADC value 0 ~ 1023 to 0 mV ~ 5000 mV
int mV = round((valueA0 * 5000.0 ) / 1023.0);

Serial.println(mV);
delay(200);
}

// Simple demo for feeding some random data to Pachube.
// 2011-07-08 jc@wippler.nl
//
// License: GPLv2

// Handle returning code and reset ethernet module if needed
// 2013-10-22 hneiraf@gmail.com

// Modifing so that it works on my setup for www.thingspeak.com.
// Arduino pro-mini 5V/16MHz, ETH modul on SPI with CS on pin 10.
// Also added a few changes found on various forums. Do not know what the
// res variable is for, tweaked it so it works faster for my application
// 2015-11-09 dani.lomajhenic@gmail.com

#include <EtherCard.h>

// change these settings to match your own setup
//#define FEED “000”
#define APIKEY “beef1337beef1337” // put your key here

// ethernet interface mac address, must be unique on the LAN
static byte mymac = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
const char website PROGMEM = “api.thingspeak.com”;
byte Ethernet::buffer[700];
uint32_t timer;
Stash stash;
byte session;

//timing variable
int res = 100; // was 0

void initialize_ethernet(void){
for(;;){ // keep trying until you succeed
//Reinitialize ethernet module
//pinMode(5, OUTPUT); // do notknow what this is for, i ve got something elso on pin5
//Serial.println(“Reseting Ethernet…”);
//digitalWrite(5, LOW);
//delay(1000);
//digitalWrite(5, HIGH);
//delay(500);

// Change ‘SS’ to your Slave Select pin, if you arn’t using the default pin
if (ether.begin(sizeof Ethernet::buffer, mymac, SS) == 0){
Serial.println( “Failed to access Ethernet controller”);
continue;
}

if (!ether.dhcpSetup()){
Serial.println(“DHCP failed”);
continue;
}

ether.printIp("IP: ", ether.myip);
ether.printIp("GW: ", ether.gwip);
ether.printIp("DNS: ", ether.dnsip);

if (!ether.dnsLookup(website))
Serial.println(“DNS failed”);

ether.printIp("SRV: ", ether.hisip);

//reset init value
res = 180;
break;
}
}

void setup () {
Serial.begin(9600);
Serial.println("\n[ThingSpeak example]");

//Initialize Ethernet
initialize_ethernet();
}

void loop () {
//if correct answer is not received then re-initialize ethernet module
if (res > 220){
initialize_ethernet();
}

res = res + 1;

ether.packetLoop(ether.packetReceive());

//200 res = 10 seconds (50ms each res)
if (res == 200) {

// Generate random info
float demo = random(0,500);
word one = random(0,500);
String msje;

if (demo < 250){
msje = “low”;
}
else{
msje = “high”;
}

// generate two fake values as payload - by using a separate stash,
// we can determine the size of the generated message ahead of time
// field1=(Field 1 Data)&field2=(Field 2 Data)&field3=(Field 3 Data)&field4=(Field 4 Data)&field5=(Field 5 Data)&field6=(Field 6 Data)&field7=(Field 7 Data)&field8=(Field 8 Data)&lat=(Latitude in Decimal Degrees)&long=(Longitude in Decimal Degrees)&elevation=(Elevation in meters)&status=(140 Character Message)
byte sd = stash.create();
stash.print(“field1=”);
stash.print(demo);
//stash.print("&field2=");
//stash.print(one);
//stash.print("&field3=");
//stash.print(msje);
stash.save();

//Display data to be sent
Serial.println(demo);

// generate the header with payload - note that the stash size is used,
// and that a “stash descriptor” is passed in as argument using “$H”
Stash::prepare(PSTR(“POST /update HTTP/1.0” “\r\n”
“Host: $F” “\r\n”
“Connection: close” “\r\n”
“X-THINGSPEAKAPIKEY: $F” “\r\n”
“Content-Type: application/x-www-form-urlencoded” “\r\n”
“Content-Length: $D” “\r\n”
“\r\n”
“$H”),
website, PSTR(APIKEY), stash.size(), sd);

// send the packet - this also releases all stash buffers once done
session = ether.tcpSend();

// added from: http://jeelabs.net/boards/7/topics/2241
int freeCount = stash.freeCount();
if (freeCount <= 3) { Stash::initMap(56); }
}

const char* reply = ether.tcpReply(session);

if (reply != 0) {
res = 0;
Serial.println(F(" >>>REPLY recieved…"));
Serial.println(reply);
}
delay(300);
}

up up