ST Americas mbed Team / Mbed 2 deprecated MTS_WiFi_Connect_M2X_Example

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 AT&T Developer Summit Hackathon 2016

main.cpp@17:ab1ea5bc694b, 2014-09-02 (annotated)

Committer:
joe_tijerina
Date:
Tue Sep 02 20:16:07 2014 +0000
Revision:
17:ab1ea5bc694b
Parent:
16:921fec88838d 
Updated SocketModem lib to fix wifi shield close() issue

Who changed what in which revision?

UserRevisionLine numberNew contents of line
joe_tijerina 14:df2fe4b77d83 1 #include "mbed.h"
joe_tijerina 14:df2fe4b77d83 2 #include "M2XStreamClient.h"
joe_tijerina 14:df2fe4b77d83 3 #include "MTSSerial.h"
joe_tijerina 14:df2fe4b77d83 4 #include "Wifi.h"
joe_tijerina 14:df2fe4b77d83 5 #include "include_me.h"
joe_tijerina 14:df2fe4b77d83 6 #include "math.h"
joe_tijerina 14:df2fe4b77d83 7
joe_tijerina 14:df2fe4b77d83 8 using namespace mts;
joe_tijerina 14:df2fe4b77d83 9
joe_tijerina 14:df2fe4b77d83 10 /* This example shows how to do a basic connectivity test to AT&T M2X Cloud
joe_tijerina 14:df2fe4b77d83 11 * using the MTS Wifi shield board. You will need to change the network
joe_tijerina 14:df2fe4b77d83 12 * SSID and security key. You may need to chage the security type.
joe_tijerina 14:df2fe4b77d83 13 */
joe_tijerina 14:df2fe4b77d83 14
joe_tijerina 14:df2fe4b77d83 15 using namespace mts;
joe_tijerina 14:df2fe4b77d83 16
joe_tijerina 14:df2fe4b77d83 17 const char key[] = "your_api_key"; // Replace with your M2X API key
joe_tijerina 14:df2fe4b77d83 18 const char feed[] = "your_feed_id"; // Replace with your blueprint Feed ID
joe_tijerina 14:df2fe4b77d83 19 const char stream[] = "your_stream_name"; // Replace with your stream name
joe_tijerina 14:df2fe4b77d83 20 char name[] = "your_device_location_name"; // Name of current location of datasource
joe_tijerina 14:df2fe4b77d83 21
joe_tijerina 14:df2fe4b77d83 22 double latitude = 30.3748076;
joe_tijerina 14:df2fe4b77d83 23 double longitude = -97.7386896; // You can also read those values from a GPS
joe_tijerina 14:df2fe4b77d83 24 double elevation = 400.00;
joe_tijerina 14:df2fe4b77d83 25
joe_tijerina 14:df2fe4b77d83 26 DigitalOut myled(D7);
joe_tijerina 14:df2fe4b77d83 27 AnalogIn tempSensor(A0);
joe_tijerina 14:df2fe4b77d83 28
joe_tijerina 14:df2fe4b77d83 29 // Note: This callback function needs to be debugged further as it does not print
joe_tijerina 14:df2fe4b77d83 30 // the actual fetched reports, instead both "at" and "value" pointers print the
joe_tijerina 14:df2fe4b77d83 31 // timestamps of each report.
joe_tijerina 14:df2fe4b77d83 32 void on_data_point_found(const char* at, const char* value, int index, void* context) {
joe_tijerina 14:df2fe4b77d83 33 printf("Found a data point, index: %d\r\n", index);
joe_tijerina 14:df2fe4b77d83 34 printf("At: %s Value: %s \r\n", at, value);
joe_tijerina 14:df2fe4b77d83 35 }
joe_tijerina 14:df2fe4b77d83 36
joe_tijerina 14:df2fe4b77d83 37 void on_location_found(const char* name,
joe_tijerina 14:df2fe4b77d83 38 double latitude,
joe_tijerina 14:df2fe4b77d83 39 double longitude,
joe_tijerina 14:df2fe4b77d83 40 double elevation,
joe_tijerina 14:df2fe4b77d83 41 const char* timestamp,
joe_tijerina 14:df2fe4b77d83 42 int index,
joe_tijerina 14:df2fe4b77d83 43 void* context) {
joe_tijerina 14:df2fe4b77d83 44 printf("Found a location, index: %d\r\n", index);
joe_tijerina 14:df2fe4b77d83 45 printf("Name: %s Latitude: %lf Longitude: %lf\r\n", name, latitude, longitude);
joe_tijerina 14:df2fe4b77d83 46 printf("Elevation: %lf Timestamp: %s\r\n", elevation, timestamp);
joe_tijerina 14:df2fe4b77d83 47 }
joe_tijerina 14:df2fe4b77d83 48
joe_tijerina 14:df2fe4b77d83 49
joe_tijerina 14:df2fe4b77d83 50 int main()
joe_tijerina 14:df2fe4b77d83 51 {
joe_tijerina 14:df2fe4b77d83 52 char amb_temp[6];
joe_tijerina 14:df2fe4b77d83 53 int response;
joe_tijerina 14:df2fe4b77d83 54 int a;
joe_tijerina 14:df2fe4b77d83 55 int adc_scale = 4095;
joe_tijerina 14:df2fe4b77d83 56 int B = 3975;
joe_tijerina 14:df2fe4b77d83 57 float resistance;
joe_tijerina 14:df2fe4b77d83 58 float temperature;
joe_tijerina 14:df2fe4b77d83 59 float temperature_f;
joe_tijerina 14:df2fe4b77d83 60
joe_tijerina 14:df2fe4b77d83 61 //Set the network parameters
joe_tijerina 14:df2fe4b77d83 62 std::string ssid = "your_wifi_ssid";
joe_tijerina 14:df2fe4b77d83 63 std::string securityKey = "your_wifi_passphrase";
joe_tijerina 14:df2fe4b77d83 64 Wifi::SecurityType securityType = Wifi::WPA2;
joe_tijerina 14:df2fe4b77d83 65
joe_tijerina 14:df2fe4b77d83 66 //Wait for wifi module to boot up
joe_tijerina 14:df2fe4b77d83 67 for (int i = 10; i >= 0; i = i - 2) {
joe_tijerina 14:df2fe4b77d83 68 wait(2);
joe_tijerina 14:df2fe4b77d83 69 printf("Waiting %d seconds...\n\r", i);
joe_tijerina 14:df2fe4b77d83 70 }
joe_tijerina 14:df2fe4b77d83 71
joe_tijerina 14:df2fe4b77d83 72 //Setup serial interface to WiFi module
joe_tijerina 14:df2fe4b77d83 73 MTSSerial* serial = new MTSSerial(D8, D2, 256, 4096);
joe_tijerina 14:df2fe4b77d83 74 serial->baud(9600);
joe_tijerina 14:df2fe4b77d83 75
joe_tijerina 14:df2fe4b77d83 76 Transport::setTransport(Transport::WIFI);
joe_tijerina 14:df2fe4b77d83 77
joe_tijerina 14:df2fe4b77d83 78 //Setup Wifi class
joe_tijerina 14:df2fe4b77d83 79 Wifi* wifi = Wifi::getInstance();
joe_tijerina 14:df2fe4b77d83 80 printf("Init: %s\n\r", wifi->init(serial) ? "SUCCESS" : "FAILURE");
joe_tijerina 14:df2fe4b77d83 81
joe_tijerina 14:df2fe4b77d83 82 //Setup and check connection
joe_tijerina 14:df2fe4b77d83 83 printf("Set Network: %s\n\r", getCodeNames(wifi->setNetwork(ssid, securityType, securityKey)).c_str());
joe_tijerina 14:df2fe4b77d83 84 printf("Set DHCP: %s\n\r", getCodeNames(wifi->setDeviceIP("DHCP")).c_str());
joe_tijerina 14:df2fe4b77d83 85 while (! wifi->connect()) {
joe_tijerina 14:df2fe4b77d83 86 printf("Connect: Failure\r\n");
joe_tijerina 14:df2fe4b77d83 87 wait(1);
joe_tijerina 14:df2fe4b77d83 88 }
joe_tijerina 14:df2fe4b77d83 89 printf("Connect: Success\r\n");
joe_tijerina 14:df2fe4b77d83 90 printf("Is Connected: %s\n\r", wifi->isConnected() ? "True" : "False");
joe_tijerina 14:df2fe4b77d83 91
joe_tijerina 14:df2fe4b77d83 92 printf("Ping Server: %s\n\r", wifi->ping("8.8.8.8") ? "Success" : "Failed");
joe_tijerina 14:df2fe4b77d83 93 wait(1);
joe_tijerina 14:df2fe4b77d83 94
joe_tijerina 14:df2fe4b77d83 95
joe_tijerina 14:df2fe4b77d83 96 // Initialize the M2X client
joe_tijerina 14:df2fe4b77d83 97 Client client;
joe_tijerina 14:df2fe4b77d83 98 M2XStreamClient m2xClient(&client, key);
joe_tijerina 14:df2fe4b77d83 99
joe_tijerina 14:df2fe4b77d83 100 // update location
joe_tijerina 14:df2fe4b77d83 101 response = m2xClient.updateLocation(feed, name, latitude, longitude, elevation);
joe_tijerina 14:df2fe4b77d83 102 printf("updateLocation response code: %d\r\n", response);
joe_tijerina 14:df2fe4b77d83 103 if (response == -1) while (true) ;
joe_tijerina 14:df2fe4b77d83 104
joe_tijerina 16:921fec88838d 105 //for (int i = 0; i < 5; i++)
joe_tijerina 16:921fec88838d 106 while(1)
joe_tijerina 14:df2fe4b77d83 107 {
joe_tijerina 14:df2fe4b77d83 108 myled = 1; // LED is ON
joe_tijerina 14:df2fe4b77d83 109 a = tempSensor.read_u16();
joe_tijerina 14:df2fe4b77d83 110
joe_tijerina 14:df2fe4b77d83 111 resistance = (float)(adc_scale-a)*10000/a; //get the resistance of the sensor;
joe_tijerina 14:df2fe4b77d83 112 temperature = 1/(log(resistance/10000)/B+1/298.15)-273.15; //convert to temperature via datasheet
joe_tijerina 14:df2fe4b77d83 113 temperature_f = (1.8 * temperature) + 32.0;
joe_tijerina 14:df2fe4b77d83 114 sprintf(amb_temp, "%0.2f", temperature_f);
joe_tijerina 14:df2fe4b77d83 115
joe_tijerina 14:df2fe4b77d83 116 printf("Temp Sensor Analog Reading is 0x%X = %d ", a, a);
joe_tijerina 14:df2fe4b77d83 117 printf("Current Temperature: %f C %f F \n\r", temperature, temperature_f);
joe_tijerina 14:df2fe4b77d83 118
joe_tijerina 14:df2fe4b77d83 119 response = m2xClient.post(feed, stream, amb_temp);
joe_tijerina 14:df2fe4b77d83 120 printf("Post response code: %d\r\n", response);
joe_tijerina 14:df2fe4b77d83 121 if (response == -1) while (true) ;
joe_tijerina 14:df2fe4b77d83 122
joe_tijerina 14:df2fe4b77d83 123 myled = 0; // LED is OFF
joe_tijerina 14:df2fe4b77d83 124
joe_tijerina 14:df2fe4b77d83 125 delay(5000);
joe_tijerina 14:df2fe4b77d83 126 }
joe_tijerina 14:df2fe4b77d83 127
joe_tijerina 14:df2fe4b77d83 128
joe_tijerina 14:df2fe4b77d83 129 // fetch location
joe_tijerina 14:df2fe4b77d83 130 response = m2xClient.readLocation(feed, on_location_found, NULL);
joe_tijerina 14:df2fe4b77d83 131 printf("readLocation response code: %d\r\n", response);
joe_tijerina 14:df2fe4b77d83 132 if (response == -1) while (true) ;
joe_tijerina 14:df2fe4b77d83 133
joe_tijerina 14:df2fe4b77d83 134 // fetch temperature
joe_tijerina 14:df2fe4b77d83 135 response = m2xClient.fetchValues(feed, stream, on_data_point_found, NULL);
joe_tijerina 14:df2fe4b77d83 136 printf("Fetch response code: %d\r\n", response);
joe_tijerina 14:df2fe4b77d83 137 if (response == -1) while (true) ;
joe_tijerina 14:df2fe4b77d83 138
joe_tijerina 14:df2fe4b77d83 139 }
joe_tijerina 14:df2fe4b77d83 140