Sample code for a FRDM-KL46Z device that can read accelerometer data and then post it to the M2X platform. For use with AT&T DevLab.

Dependencies:   M2XStreamClient MMA8451Q SocketModem jsonlite mbed

Revision:
0:b4f0b744fbc3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri May 02 15:51:44 2014 +0000
@@ -0,0 +1,118 @@
+#include "mbed.h"
+#include "MMA8451Q.h"
+#include "M2XStreamClient.h"
+#include "include_me.h"
+#include "math.h"
+
+#if   defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
+  PinName const SDA = PTE25;
+  PinName const SCL = PTE24;
+#elif defined (TARGET_KL05Z)
+  PinName const SDA = PTB4;
+  PinName const SCL = PTB3;
+#else
+  #error TARGET NOT DEFINED
+#endif
+
+#define MMA8451_I2C_ADDRESS (0x1d<<1)
+
+using namespace mts;
+
+const char key[] = "<key>";       // Replace with your M2X user account master key
+const char feed[] = "<feed>";     // Replace with your blueprint feed ID
+const char stream[] = "<stream>"; // Replace with your stream name
+
+// set to 1 for cellular shield board
+// set to 0 for wifi shield board
+#define CELL_SHIELD 0
+
+// ssid and phrase for wifi
+std::string ssid = "<ssid>";        // Replace with your Wifi ID (SSID)
+std::string phrase = "<password>";  // Replace with your Wifi phrase (password)
+Wifi::SecurityType security_type = Wifi::WPA; // Replace with your Wifi security type
+
+int main()
+{
+#if CELL_SHIELD
+    MTSSerialFlowControl* serial = new MTSSerialFlowControl(PTD3, PTD2, PTA12, PTC8);
+    serial->baud(115200);
+    Transport::setTransport(Transport::CELLULAR);
+    Cellular* cell = Cellular::getInstance();
+    cell->init(serial, PTA4, PTC9); //DCD and DTR pins for KL46Z
+
+    int max_tries = 5;
+    int i;
+    std::string apn = "m2m.com.attz";
+
+    i = 0;
+    while (i++ < max_tries) {
+        if (cell->getRegistration() == Cellular::REGISTERED) {
+            printf("registered with tower\n\r");
+            break;
+        } else if (i >= max_tries) {
+            printf("failed to register with tower\n\r");
+        } else {
+            wait(3);
+        }
+    }
+
+    printf("signal strength: %d\n\r", cell->getSignalStrength());
+
+    i = 0;
+    printf("setting APN to %s\n\r", apn.c_str());
+    while (i++ < max_tries) {
+        if (cell->setApn(apn) == SUCCESS) {
+            printf("successfully set APN\n\r");
+            break;
+        } else if (i >= max_tries) {
+            printf("failed to set APN\n\r");
+        } else {
+            wait(1);
+        }
+    }
+
+    i = 0;
+    printf("bringing up PPP link\n\r");
+    while (i++ < max_tries) {
+        if (cell->connect()) {
+            printf("PPP link is up\n\r");
+            break;
+        } else if (i >= max_tries) {
+            printf("failed to bring PPP link up\n\r");
+        } else {
+            wait(1);
+        }
+    }
+#else
+    // WiFi shield
+    for (int i = 6; i >= 0; i = i - 2) {
+        wait(2);
+        printf("Waiting %d seconds...\n\r", i);
+    }
+    MTSSerial* serial = new MTSSerial(PTD3, PTD2, 256, 256);
+    serial->baud(9600);
+    Transport::setTransport(Transport::WIFI);
+    Wifi* wifi = Wifi::getInstance();
+    printf("Init: %s\n\r", wifi->init(serial) ? "SUCCESS" : "FAILURE");
+    printf("Set Network: %s\n\r", getCodeNames(wifi->setNetwork(ssid, security_type, phrase)).c_str());
+    printf("Set DHCP: %s\n\r", getCodeNames(wifi->setDeviceIP("DHCP")).c_str());
+    printf("Signal Strnegth (dBm): %d\n\r", wifi->getSignalStrength());
+    printf("Is Connected: %s\n\r", wifi->isConnected() ? "True" : "False");
+    printf("Connect: %s\n\r", wifi->connect() ? "Success" : "Failure");
+    printf("Is Connected: %s\n\r", wifi->isConnected() ? "True" : "False");
+#endif
+
+    // Initialize the M2X client
+    Client client;
+    M2XStreamClient m2xClient(&client, key);
+    int ret;
+    
+    // Create an accelerometer instance
+    MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
+    
+    printf("MMA8451 ID: %d\n", acc.getWhoAmI());
+
+    // Add code here to read accelerometer data and post to M2X stream
+    // ...
+    
+}
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