Demo app to read data from temperature sensor connected to STM-F411RE and send values to AT&T M2X Data Service via MTS shield.
Dependencies: M2XStreamClient SocketModem jsonlite mbed
Fork of STM32_MTS_Wifi_Connect_M2X by
main.cpp
- Committer:
- joe_tijerina
- Date:
- 2014-07-18
- Revision:
- 12:676ba8e7bea2
- Parent:
- 11:a9117a40bde7
- Child:
- 13:d8957cc4c88e
File content as of revision 12:676ba8e7bea2:
#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 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[] = "6f1f72905ab5bede6ff804d58c2e834d"; // Replace with your M2X user account master key const char feed[] = "119e6e4c262087ea3c5129576a18ee52"; // Replace with your blueprint feed ID const char stream[] = "temperature"; // Replace with your stream name const int thresholdvalue = 10; char name[] = "<location name>"; // Name of current location of datasource double latitude = 33.007872; double longitude = -96.751614; // You can also read those values from a GPS double elevation = 697.00; 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]; double temp; int a; int sensorValue; int adc_scale = 4095; int B = 3975; float resistance; float temperature; float temperature_f; float test; float Rsensor; //Resistance of sensor in K DigitalOut myled(D7); AnalogIn analogRead(A0); AnalogIn analogLightSensorRead(A1); //Set the network parameters std::string ssid = "Belkin_STM"; std::string securityKey = "stmicroatx"; 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, 256); 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); while(1) { a = analogRead.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; printf("Temp Sensor Analog Reading is 0x%X = %d ", a, a); printf("Current Temperature: %f degC %f degF \n\r", temperature, temperature_f); sensorValue = analogLightSensorRead.read_u16(); Rsensor=(float)(adc_scale-sensorValue)*10/sensorValue; if(Rsensor > thresholdvalue) { myled = 1; // LED is ON } else { myled = 0; // LED is OFF } printf("Light Sensor Analog Reading is 0x%X = %d ", sensorValue, sensorValue); printf("The sensor resistance is %f \n\n\r", Rsensor); sprintf(amb_temp, "%0.2f", temperature_f); //write dummy temp value in amb_temp int response = m2xClient.post(feed, stream, amb_temp); printf("Post response code: %d\r\n", response); if (response == -1) while (true) ; delay(60000); } // Read temperature data and post to M2X stream temp = 78.6; while(1) { sprintf(amb_temp, "%0.2f", temp); //write dummy temp value in amb_temp int response = m2xClient.post(feed, stream, amb_temp); printf("Post response code: %d\r\n", response); if (response == -1) while (true) ; temp = temp + 0.1; /* increment the temp by 0.5 deg */ // wait 60 secs and then loop delay(60000); } }