Srdjan Veljkovic
Pubnub demo for AT&T IoT Starter Kit. Functionally similar to the Flow demo.
Dependencies: FXOS8700CQ MODSERIAL mbed
Pubnub demo for AT&T IoT Starter Kit
This demo is functionally similar to the Flow demo, so you can find general information here: https://developer.mbed.org/users/JMF/code/Avnet_ATT_Cellular_IOT/.
The only difference is that we use Pubnub to publish the measurements and subscribe to receiving the instructions to set the LED.
Settings
Pubnub related settings are:
Pubnub settings in `config_me.h`
PUBNUB_SUBSCRIBE_KEY PUBNUB_PUBLISH_KEY PUBNUB_CHANNEL
All are documented in their respective comments.
Pubnub context class
Similar to Pubnub SDKs, we provide a Pubnub context class. It is defined in pubnub.h header file and implemented in pubnub.cpp.
It provides only the fundamental "publish" and "subscribe" methods. They are documented in the header file.
This class is reusable in other code (it is not specific to this demo), it has a very narrow interface to the AT&T IoT cellular modem code. For example of use, you can look at the main() (in main.c).
Sample of published data
Published message w/measurement data
{"serial":"vstarterkit001","temp":89.61,"humidity":35,"accelX":0.97,"accelY":0.013,"accelZ":-0.038}
Don't worry, nobody got burnt, the temperature is in degrees Fahrenheit. :)
Publish a message (from, say, the Pubnub console http://pubnub.com/console) of the form {"LED":<name-of-the-color>} on the channel that this demo listens to (default is hello_world) to turn the LED to that color on the Starter Kit:
Turn LED to red
{"LED":"Red"}
Turn LED to green
{"LED":"Green"}
Turn LED to blue
{"LED":"Blue"}
Diff: sensors.cpp
- Revision:
- 69:5a3414cc7531
- Parent:
- 68:6e311c747045
- Child:
- 70:24d5800f27be
--- a/sensors.cpp Thu Aug 11 00:03:09 2016 +0000
+++ b/sensors.cpp Thu Aug 11 04:38:02 2016 +0000
@@ -18,8 +18,10 @@
#include "mbed.h"
#include "sensors.h"
#include "hardware.h"
+#include "config_me.h"
#include "FXOS8700CQ.h"
#include "HTS221.h"
+#include "xadow_gps.h"
#include <string>
//I2C for pmod sensors:
@@ -419,6 +421,78 @@
} //bHTS221_present
} //Read_HTS221()
+bool bGPS_present = false;
+void Init_GPS(void)
+{
+ char scan_id[GPS_SCAN_SIZE+2]; //The first two bytes are the response length (0x00, 0x04)
+ I2C_WriteSingleByte(GPS_DEVICE_ADDR, GPS_SCAN_ID, false); //no hold, must do read
+
+ unsigned char i;
+ for(i=0;i<(GPS_SCAN_SIZE+2);i++)
+ {
+ scan_id[i] = I2C_ReadSingleByte(GPS_DEVICE_ADDR);
+ }
+
+ if(scan_id[5] != GPS_DEVICE_ID)
+ {
+ bGPS_present = false;
+ PRINTF("Xadow GPS not found\n");
+ }
+ else
+ {
+ bGPS_present = true;
+ PRINTF("Xadow GPS Scan ID response = 0x%02X%02X (length), 0x%02X%02X%02X%02X\r\n", scan_id[0], scan_id[1], scan_id[2], scan_id[3], scan_id[4], scan_id[5]);
+ char status = gps_get_status();
+ if (iSensorsToReport == TEMP_HUMIDITY_ACCELEROMETER_GPS)
+ { //we must wait for GPS to initialize
+ PRINTF("Waiting for GPS to become ready... ");
+ while (status != 'A')
+ {
+ wait (5.0);
+ char status = gps_get_status();
+ unsigned char num_satellites = gps_get_sate_in_veiw();
+ PRINTF("%c%d", status, num_satellites);
+ }
+ PRINTF("\r\n");
+ } //we must wait for GPS to initialize
+ PRINTF("gps_check_online is %d\r\n", gps_check_online());
+ unsigned char *data;
+ data = gps_get_utc_date_time();
+ PRINTF("gps_get_utc_date_time : %d-%d-%d,%d:%d:%d\r\n", data[0], data[1], data[2], data[3], data[4], data[5]);
+ PRINTF("gps_get_status : %c ('A' = Valid, 'V' = Invalid)\r\n", gps_get_status());
+ PRINTF("gps_get_latitude : %c:%f\r\n", gps_get_ns(), gps_get_latitude());
+ PRINTF("gps_get_longitude : %c:%f\r\n", gps_get_ew(), gps_get_longitude());
+ PRINTF("gps_get_altitude : %f meters\r\n", gps_get_altitude());
+ PRINTF("gps_get_speed : %f knots\r\n", gps_get_speed());
+ PRINTF("gps_get_course : %f degrees\r\n", gps_get_course());
+ PRINTF("gps_get_position_fix : %c\r\n", gps_get_position_fix());
+ PRINTF("gps_get_sate_in_view : %d satellites\r\n", gps_get_sate_in_veiw());
+ PRINTF("gps_get_sate_used : %d\r\n", gps_get_sate_used());
+ PRINTF("gps_get_mode : %c ('A' = Automatic, 'M' = Manual)\r\n", gps_get_mode());
+ PRINTF("gps_get_mode2 : %c ('1' = no fix, '1' = 2D fix, '3' = 3D fix)\r\n", gps_get_mode2());
+ } //bool bGPS_present = true
+} //Init_GPS()
+
+void Read_GPS()
+{
+ unsigned char gps_quality = 0; //default
+ if (bGPS_present)
+ {
+ if ((gps_get_status() == 'A') && (gps_get_mode2() != '1'))
+ {
+ gps_quality = 1;
+ }
+ PRINTF("gps_quality : %d\r\n", gps_quality);
+ PRINTF("gps_get_latitude : %c:%f\r\n", gps_get_ns(), gps_get_latitude());
+ PRINTF("gps_get_longitude : %c:%f\r\n", gps_get_ew(), gps_get_longitude());
+ PRINTF("gps_get_altitude : %f meters\r\n", gps_get_altitude());
+ PRINTF("gps_get_speed : %f knots\r\n", gps_get_speed());
+ PRINTF("gps_get_course : %f degrees\r\n", gps_get_course());
+ //sprintf(SENSOR_DATA.Temperature, "%0.2f", CTOF(hts221.readTemperature()));
+ //sprintf(SENSOR_DATA.Humidity, "%02d", hts221.readHumidity());
+ } //bGPS_present
+} //Read_GPS()
+
#ifdef USE_VIRTUAL_SENSORS
bool bUsbConnected = false;
volatile uint8_t usb_uart_rx_buff[256];
@@ -558,6 +632,7 @@
Init_Si7020();
Init_Si1145();
Init_motion_sensor();
+ Init_GPS();
} //sensors_init
void read_sensors(void)
@@ -566,4 +641,5 @@
Read_Si7020();
Read_Si1145();
Read_motion_sensor();
+ Read_GPS();
} //read_sensors