and easily got it to talk with Xively using this nice tutorial...
http://learn.adafruit.com/adafruit-cc30 ... ino-sketch
...simplified (for testing purposes) to just put out a constant value instead of reading sensors.
That's here:
Code: Select all
int weight = 35;The full tutorial code with my simplifications is at bottom of this post.
On compile, the IDE says it uses 22,208 of 32,256 bytes. It works fine...data goes to Xively, makes a nice plot with a flat line at 35 (pounds).
Then, to test out the SD card part of the CC3000 shield, I add the following lines in the declaration part:
Code: Select all
#include <SD.h>
File myFile;
Code: Select all
pinMode(4, OUTPUT);
if (!SD.begin(4)) {
Serial.println(F("SDinitFail"));
return;
}
myFile = SD.open("test.txt", FILE_WRITE);
// if the file opened okay, write to it:
if (myFile) {
Serial.print(F("Rite test.txt"));
myFile.println(F("test 123"));
// close the file:
myFile.close();
Serial.println(F("SDsaveDone"));
} else {
// if the file didn't open, print an error:
Serial.println(F("ErrOpng test.txt"));
}
It is hard to believe that such a seemingly simple sketch can kill the UNO and drive me to a MEGA.
Am I doing something wrong? I don't see an easy way to trim any fat out of this; is there a way to shrink it down?
Thank you,
Dave
Started with this:
Code: Select all
/***************************************************
This is a sketch to use the CC3000 WiFi chip & Xively
Written by Marco Schwartz for Open Home Automation
****************************************************/
// Libraries
#include <Adafruit_CC3000.h>
#include <SPI.h>
// tutorial had these libs...not needed
//#include <ccspi.h> //compiles fine without it
//#include <string.h> //compiles fine without it
//#include "utility/debug.h" //compiles fine without it
//#include "DHT.h" //compiles fine without it...4 the sensors
//#include<stdlib.h> //compiles fine without it
// Define CC3000 chip pins
#define ADAFRUIT_CC3000_IRQ 3
#define ADAFRUIT_CC3000_VBAT 5
#define ADAFRUIT_CC3000_CS 10
// Create CC3000 instances
Adafruit_CC3000 cc3000 = Adafruit_CC3000(ADAFRUIT_CC3000_CS, ADAFRUIT_CC3000_IRQ, ADAFRUIT_CC3000_VBAT,
SPI_CLOCK_DIV2); // you can change this clock speed
// WLAN parameters
#define WLAN_SSID "blahblahblah"
#define WLAN_PASS "moreblahblah"
// Security can be WLAN_SEC_UNSEC, WLAN_SEC_WEP, WLAN_SEC_WPA or WLAN_SEC_WPA2
#define WLAN_SECURITY WLAN_SEC_WPA2
// Xively parameters
#define WEBSITE "api.xively.com"
#define API_key "abigstringoflettersandnumbersgoesherethislongzzz"
#define feedID "ninenumbersgohere"
uint32_t ip;
void setup(void)
{
// Initialize
Serial.begin(115200);
Serial.println(F("\nInit..."));
if (!cc3000.begin())
{
Serial.println(F("Fail begin()-Chk wires"));
while(1);
}
}
void loop(void)
{
// Connect to WiFi network
cc3000.connectToAP(WLAN_SSID, WLAN_PASS, WLAN_SECURITY);
Serial.println(F("\nCnctd 1"));
/* Wait for DHCP to complete */
Serial.println(F("RqustDHCP"));
while (!cc3000.checkDHCP())
{
delay(100);
}
// Get the website IP & print it
ip = 0;
Serial.print(WEBSITE); Serial.print(F(" -> "));
while (ip == 0) {
if (! cc3000.getHostByName(WEBSITE, &ip)) {
Serial.println(F("Cdn't rslve"));
}
delay(500);
}
cc3000.printIPdotsRev(ip);
int weight = 35;
// Prepare JSON for Xively & get length
int length = 0;
String data = "";
data = data + "\n" + "{\"version\":\"1.0.0\",\"datastreams\" : [ {\"id\" : \"SouthPostWeight\",\"current_value\" : \"" + String(weight) + "\"}]}";
length = data.length();
//Serial.print("Data length");
//Serial.println(length);
//Serial.println();
// Print request for debug purposes
//Serial.print("PUT /v2/feeds/");
//Serial.print(feedID);
//Serial.println(".json HTTP/1.0");
//Serial.println("Host: api.xively.com");
//Serial.print("X-ApiKey: ");
//Serial.println(API_key);
//Serial.print("Content-Length: ");
//Serial.println(length, DEC);
//Serial.print("Connection: close");
//Serial.println();
//Serial.print(data);
//Serial.println();
// Send request
Adafruit_CC3000_Client client = cc3000.connectTCP(ip, 80);
if (client.connected()) {
Serial.println(F("Cnctd 2"));
client.println("PUT /v2/feeds/" + String(feedID) + ".json HTTP/1.0");
client.println("Host: api.xively.com");
client.println("X-ApiKey: " + String(API_key));
client.println("Content-Length: " + String(length));
client.print("Connection: close");
client.println();
client.print(data);
client.println();
} else {
Serial.println(F("Conn faild"));
return;
}
// echos reply...apparently necessary
Serial.println(F("----------"));
while (client.connected()) {
while (client.available()) {
char c = client.read();
Serial.print(c);
}
}
client.close();
Serial.println(F("----------"));
//Serial.println(F("\nDscnctng"));
Serial.println(F("Dscnctng"));
cc3000.disconnect();
// Wait 60 seconds until next update
delay(60000);
}
