Sample project to connect to AT&T M2X from the STM32 Nucleo + MTS WiFi shield
Dependencies: M2XStreamClient SocketModem jsonlite mbed
Fork of STM32_MTS_Wifi_Connect_M2X by
main.cpp
- Committer:
- joe_tijerina
- Date:
- 2014-07-25
- Revision:
- 14:df2fe4b77d83
- Parent:
- 13:d8957cc4c88e
- Child:
- 16:921fec88838d
File content as of revision 14:df2fe4b77d83:
#include "mbed.h" #include "M2XStreamClient.h" #include "MTSSerial.h" #include "Wifi.h" #include "include_me.h" #include "math.h" using namespace mts; /* This example shows how to do a basic connectivity test to AT&T M2X Cloud * using the MTS Wifi shield board. You will need to change the network * SSID and security key. You may need to chage the security type. */ using namespace mts; const char key[] = "your_api_key"; // Replace with your M2X API key const char feed[] = "your_feed_id"; // Replace with your blueprint Feed ID const char stream[] = "your_stream_name"; // Replace with your stream name char name[] = "your_device_location_name"; // Name of current location of datasource double latitude = 30.3748076; double longitude = -97.7386896; // You can also read those values from a GPS double elevation = 400.00; DigitalOut myled(D7); AnalogIn tempSensor(A0); // Note: This callback function needs to be debugged further as it does not print // the actual fetched reports, instead both "at" and "value" pointers print the // timestamps of each report. void on_data_point_found(const char* at, const char* value, int index, void* context) { printf("Found a data point, index: %d\r\n", index); printf("At: %s Value: %s \r\n", at, value); } void on_location_found(const char* name, double latitude, double longitude, double elevation, const char* timestamp, int index, void* context) { printf("Found a location, index: %d\r\n", index); printf("Name: %s Latitude: %lf Longitude: %lf\r\n", name, latitude, longitude); printf("Elevation: %lf Timestamp: %s\r\n", elevation, timestamp); } int main() { char amb_temp[6]; int response; int a; int adc_scale = 4095; int B = 3975; float resistance; float temperature; float temperature_f; //Set the network parameters std::string ssid = "your_wifi_ssid"; std::string securityKey = "your_wifi_passphrase"; Wifi::SecurityType securityType = Wifi::WPA2; //Wait for wifi module to boot up for (int i = 10; i >= 0; i = i - 2) { wait(2); printf("Waiting %d seconds...\n\r", i); } //Setup serial interface to WiFi module MTSSerial* serial = new MTSSerial(D8, D2, 256, 4096); serial->baud(9600); Transport::setTransport(Transport::WIFI); //Setup Wifi class Wifi* wifi = Wifi::getInstance(); printf("Init: %s\n\r", wifi->init(serial) ? "SUCCESS" : "FAILURE"); //Setup and check connection printf("Set Network: %s\n\r", getCodeNames(wifi->setNetwork(ssid, securityType, securityKey)).c_str()); printf("Set DHCP: %s\n\r", getCodeNames(wifi->setDeviceIP("DHCP")).c_str()); while (! wifi->connect()) { printf("Connect: Failure\r\n"); wait(1); } printf("Connect: Success\r\n"); printf("Is Connected: %s\n\r", wifi->isConnected() ? "True" : "False"); printf("Ping Server: %s\n\r", wifi->ping("8.8.8.8") ? "Success" : "Failed"); wait(1); // Initialize the M2X client Client client; M2XStreamClient m2xClient(&client, key); // update location response = m2xClient.updateLocation(feed, name, latitude, longitude, elevation); printf("updateLocation response code: %d\r\n", response); if (response == -1) while (true) ; response = m2xClient.updateLocation(feed, name, latitude, longitude, elevation); printf("updateLocation response code: %d\r\n", response); if (response == -1) while (true) ; //while(0) for (int i = 0; i < 5; i++) { myled = 1; // LED is ON a = tempSensor.read_u16(); resistance = (float)(adc_scale-a)*10000/a; //get the resistance of the sensor; temperature = 1/(log(resistance/10000)/B+1/298.15)-273.15; //convert to temperature via datasheet temperature_f = (1.8 * temperature) + 32.0; sprintf(amb_temp, "%0.2f", temperature_f); printf("Temp Sensor Analog Reading is 0x%X = %d ", a, a); printf("Current Temperature: %f C %f F \n\r", temperature, temperature_f); response = m2xClient.post(feed, stream, amb_temp); printf("Post response code: %d\r\n", response); if (response == -1) while (true) ; myled = 0; // LED is OFF delay(5000); } // fetch location response = m2xClient.readLocation(feed, on_location_found, NULL); printf("readLocation response code: %d\r\n", response); if (response == -1) while (true) ; // fetch temperature response = m2xClient.fetchValues(feed, stream, on_data_point_found, NULL); printf("Fetch response code: %d\r\n", response); if (response == -1) while (true) ; }