bonjour,
je suis débutant sous arduino et j'essaye de transmettre des infos vers cosm.com , j'ai donc réussi à le faire au bout d'un certain temps pour 4 données (LDR+CTN+Entrée numériques)
tout s'affiche correctement mais je n'ai que des valeurs entières pour mes températures , je souhaite donc faire des modifs afin d'afficher des températures au dixième .
Or la ça coince; à priori c'est un pb de format : int thisLength = 8 + getLength(thisData1)+2+8+getLength(thisData2)+2+8+ getLength(thisData3)+2+8+ getLength(thisData4)+2;
ou peut être de type de variables : void sendData(int thisData1, int thisData2, int thisData3, int thisData4) le pb c'est que lorsque je change les int par des float le pg plante .
Pourriez vous m'éclairer .
PS: je peux joindre tout le pg si necessaire
je vous met le code au cas ou !
#include <SPI.h>
#include <Ethernet.h>
#define APIKEY "*********" // your cosm api key
#define FEEDID******** // your feed ID
#define USERAGENT "Cosm Arduino Example*******" // user agent is the project name
int digits;
// assign a MAC address for the ethernet controller.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
// fill in your address here:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
// fill in an available IP address on your network here,
// for manual configuration:
IPAddress ip(************);
// initialize the library instance:
EthernetClient client;
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
IPAddress server(216,52,233,121); // numeric IP for api.cosm.com
//char server[] = "api.cosm.com"; // name address for cosm API
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
boolean lastConnected = false; // state of the connection last time through the main loop
const unsigned long postingInterval = 10*1000; //delay between updates to Cosm.com
void setup() {
pinMode(7, INPUT);
// start serial port:
Serial.begin(9600);
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// DHCP failed, so use a fixed IP address:
Ethernet.begin(mac, ip);
}
}
void loop() {
// read the analog sensor:
int sensorReading1 = analogRead(A0);//LDR
int sensorReading2 = analogRead(A3);//CTN1
int sensorReading3 = analogRead(A4);//CTN2
int sensorReading4 = digitalRead(7);//Contact magnetique
float CTN1=sensorReading2/22;
float CTN2=sensorReading3/22;
// if there's incoming data from the net connection.
// send it out the serial port. This is for debugging
// purposes only:
if (client.available()) {
char c = client.read();
Serial.print(c);
}
// if there's no net connection, but there was one last time
// through the loop, then stop the client:
if (!client.connected() && lastConnected) {
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
// if you're not connected, and ten seconds have passed since
// your last connection, then connect again and send data:
if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
sendData(sensorReading1, CTN1, CTN2, sensorReading4);
}
// store the state of the connection for next time through
// the loop:
lastConnected = client.connected();
}
// this method makes a HTTP connection to the server:
void sendData(int thisData1, int thisData2, int thisData3, int thisData4)
//void sendData(int thisData2)
//void sendData(int thisData3)
//void sendData(int thisData4)
{
// if there's a successful connection:
if (client.connect(server, 80)) {
Serial.println("connecting...");
// send the HTTP PUT request:
client.print("PUT /v2/feeds/");
client.print(FEEDID);
client.println(".csv HTTP/1.1");
client.println("Host: api.cosm.com");
client.print("X-ApiKey: ");
client.println(APIKEY);
client.print("User-Agent: ");
client.println(USERAGENT);
client.print("Content-Length: ");
// calculate the length of the sensor reading in bytes:
// 8 bytes for "sensor1," + number of digits of the data:
int thisLength = 8 + getLength(thisData1)+2+8+getLength(thisData2)+2+8+ getLength(thisData3)+2+8+ getLength(thisData4)+2;
//int thisLength = getLength(thisData1)+getLength(thisData2)+ getLength(thisData3)+ getLength(thisData4);
client.println(thisLength);
// last pieces of the HTTP PUT request:
client.println("Content-Type: text/csv");
client.println("Connection: close");
client.println();
// here's the actual content of the PUT request:
client.print("sensor1,");
client.println(thisData1);
client.print("sensor2,");
client.println(thisData2);
client.print("sensor3,");
client.println(thisData3);
client.print("sensor4,");
client.println(thisData4);
}
else {
// if you couldn't make a connection:
Serial.println("connection failed");
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
// note the time that the connection was made or attempted:
lastConnectionTime = millis();
}
// This method calculates the number of digits in the
// sensor reading. Since each digit of the ASCII decimal
// representation is a byte, the number of digits equals
// the number of bytes:
/*
int getLength(int someValue) {
// there's at least one byte:
int digits = 1;
// continually divide the value by ten,
// adding one to the digit count for each
// time you divide, until you're at 0:
int dividend = someValue /10;
while (dividend > 0) {
dividend = dividend /10;
digits++;
}
// return the number of digits:
return digits;
}*/
int getLength(double someValue) {
int n = 0;
// Handle negative numbers
if (someValue < 0.0)
{
n++; // "-";
someValue = -someValue;
}
// Round correctly so that print(1.999, 2) prints as "2.00"
double rounding = 0.5;
for (uint8_t i=0; i< digits; ++i) {
rounding /= 10.0;
}
someValue += rounding;
// Extract the integer part of the number and print it
unsigned long int_part = (unsigned long)someValue;
double remainder = someValue - (double)int_part;
while (int_part > 0) {
int_part /= 10;
n++;
}
// Print the decimal point, but only if there are digits beyond
if (digits > 0) {
n++; //".";
}
// Extract digits from the remainder one at a time
while (digits-- > 0)
{
remainder *= 10.0;
int toPrint = int(remainder);
n ++; // += String(toPrint);
remainder -= toPrint;
}
return n;
}
Bonjour
j'ai eu un probleme du même genre avec Pachube pour le calcul 'Content Lengh' dans la requet PUT. (avec l'envoi d'un "nombre à virgule") ci-joint un exemple avec un float récupéré dans un DS18B20 et une manip pour introduire le point décimal dans le buffer d'envoi malgré la contrainte de sprintf (ligne 89)
PS : pas nécessaire de publier ton APIKEY + FEEDID !!!
Il est encore temps de modifier ton message....
Wifly_PachubeTempLogger.pde (3.8 KB)
Merci
je vais prendre le temps de regarder ce pg .
A priori ça ne fonctionne pas j'ai l'erreur suivante :CSV Parser Error: CSV is invalid. Incorrect number of fields.
Ce qui me surprend c'est que cela fonctionne lorsque je teste ce programme avec un seul capteur!
j'avoue mon ignorance dans ce domaine.
#include <SPI.h>
#include <Ethernet.h>
#define APIKEY "***********" // your cosm api key
#define FEEDID *********** // your feed ID
#define USERAGENT "**********************" // user agent is the project name
int digits;
// assign a MAC address for the ethernet controller.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
// fill in your address here:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
// fill in an available IP address on your network here,
// for manual configuration:
IPAddress ip(***************);
// initialize the library instance:
EthernetClient client;
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
IPAddress server(216,52,233,121); // numeric IP for api.cosm.com
//char server[] = "api.cosm.com"; // name address for cosm API
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
boolean lastConnected = false; // state of the connection last time through the main loop
const unsigned long postingInterval = 10*1000; //delay between updates to Cosm.com
void setup() {
// start serial port:
Serial.begin(9600);
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// DHCP failed, so use a fixed IP address:
Ethernet.begin(mac, ip);
}
}
void loop() {
// read the analog sensor:
int sensorReading = analogRead(A4);
//modif calcul temperature
float temperatureCTNA4 = sensorReading/22.36;
// if there's incoming data from the net connection.
// send it out the serial port. This is for debugging
// purposes only:
if (client.available()) {
char c = client.read();
Serial.print(c);
}
// if there's no net connection, but there was one last time
// through the loop, then stop the client:
if (!client.connected() && lastConnected) {
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
// if you're not connected, and ten seconds have passed since
// your last connection, then connect again and send data:
if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
//variable modifiee sensorReading par temp
sendData(temperatureCTNA4);
}
// store the state of the connection for next time through
// the loop:
lastConnected = client.connected();
}
// this method makes a HTTP connection to the server:
//modif int par float
void sendData(float thisData1) {
// if there's a successful connection:
if (client.connect(server, 80)) {
Serial.println("connecting...");
// send the HTTP PUT request:
client.print("PUT /v2/feeds/");
client.print(FEEDID);
client.println(".csv HTTP/1.1");
client.println("Host: api.cosm.com");
client.print("X-ApiKey: ");
client.println(APIKEY);
client.print("User-Agent: ");
client.println(USERAGENT);
client.print("Content-Length: ");
// calculate the length of the sensor reading in bytes:
// 8 bytes for "sensor1," + number of digits of the data: Modif 2
int thisLength = 8 + getLength(thisData1)+2;
client.println(thisLength);
// last pieces of the HTTP PUT request:
client.println("Content-Type: text/csv");
client.println("Connection: close");
client.println();
// here's the actual content of the PUT request:
client.print("sensor1,");
client.println(thisData1);
// client.print("sensor2,");
// client.println(thisData2);
}
else {
// if you couldn't make a connection:
Serial.println("connection failed");
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
// note the time that the connection was made or attempted:
lastConnectionTime = millis();
}
// This method calculates the number of digits in the
// sensor reading. Since each digit of the ASCII decimal
// representation is a byte, the number of digits equals
// the number of bytes:
/*
int getLength(int someValue) {
// there's at least one byte:
int digits = 1;
// continually divide the value by ten,
// adding one to the digit count for each
// time you divide, until you're at 0:
int dividend = someValue /10;
while (dividend > 0) {
dividend = dividend /10;
digits++;
}
// return the number of digits:
return digits;
}*/
// Counts digits of a floating point number, to calculate content length
// for an HTTP call.
// Based on Arduino's internal printFloat() function.
int getLength(double someValue) {
int n = 0;
// Handle negative numbers
if (someValue < 0.0)
{
n++; // "-";
someValue = -someValue;
}
// Round correctly so that print(1.999, 2) prints as "2.00"
double rounding = 0.5;
for (uint8_t i=0; i< digits; ++i) {
rounding /= 10.0;
}
someValue += rounding;
// Extract the integer part of the number and print it
unsigned long int_part = (unsigned long)someValue;
double remainder = someValue - (double)int_part;
while (int_part > 0) {
int_part /= 10;
n++;
}
// Print the decimal point, but only if there are digits beyond
if (digits > 0) {
n++; //".";
}
// Extract digits from the remainder one at a time
while (digits-- > 0)
{
remainder *= 10.0;
int toPrint = int(remainder);
n ++; // += String(toPrint);
remainder -= toPrint;
}
return n;
}