Quicksand micro-electronics / Mbed 2 deprecated HelloWorld - QW Development kit

A first code example to get you started with the QW (GPS) Shield for SIGFOX development. It provides a serial connection to the modem over usb and transmits a SIGFOX message upon a button press.

Dependencies:   mbed QW_Sensors

HelloWorld QW Development kit

Preloaded code example

The QW development kits ship with this code example. This example allows you to talk straight to the TD1208 modem when using a virtual com port (note: local echo is off). This code-example also sends a SIGFOX message whenever you press a button. The message contains the button number and the measured environment temperature. The first byte is always 0x01.

/media/uploads/quicksand/packetformat.jpg

More information and other example code can be found on the component page by clicking the link below: https://developer.mbed.org/components/QW-SIGFOX-Development-Kit/

main.cpp@3:4da15d6e1429, 2016-05-02 (annotated)

Committer:
quicksand
Date:
Mon May 02 12:04:13 2016 +0000
Revision:
3:4da15d6e1429
Parent:
2:a4a68a858624
Child:
4:69df63eeb91e
Added header byte (0x01) to the sigfox packets that indicates this example.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
quicksand 0:49858c4c3500 1 #include "mbed.h"
quicksand 1:897a1b3f0955 2 #include "math.h"
quicksand 1:897a1b3f0955 3 #include "LinearTempSensor.h"
quicksand 0:49858c4c3500 4
quicksand 1:897a1b3f0955 5 /* The 4 onboard LEDs */
quicksand 0:49858c4c3500 6 DigitalOut LED_0 (PB_6);
quicksand 0:49858c4c3500 7 DigitalOut LED_1 (PA_7);
quicksand 0:49858c4c3500 8 DigitalOut LED_2 (PA_6);
quicksand 0:49858c4c3500 9 DigitalOut LED_3 (PA_5);
quicksand 0:49858c4c3500 10
quicksand 1:897a1b3f0955 11 /* The 2 user buttons */
quicksand 1:897a1b3f0955 12 InterruptIn SW1(PA_8);
quicksand 1:897a1b3f0955 13 InterruptIn SW2(PB_10);
quicksand 1:897a1b3f0955 14
quicksand 1:897a1b3f0955 15 /*Temperature sensor */
quicksand 2:a4a68a858624 16 LinearTempSensor sensor(PA_0, 5);
quicksand 0:49858c4c3500 17
quicksand 1:897a1b3f0955 18 /* Function prototypes */
quicksand 1:897a1b3f0955 19 void sw1interrupt();
quicksand 1:897a1b3f0955 20 void sw2interrupt();
quicksand 1:897a1b3f0955 21 void beat();
quicksand 1:897a1b3f0955 22 void sertmout();
quicksand 1:897a1b3f0955 23 bool modem_command_check_ok(char * command);
quicksand 1:897a1b3f0955 24 void modem_setup();
quicksand 1:897a1b3f0955 25 void txData(uint8_t btn);
quicksand 0:49858c4c3500 26
quicksand 1:897a1b3f0955 27 bool ser_timeout = false;
quicksand 1:897a1b3f0955 28
quicksand 1:897a1b3f0955 29 Ticker heartbeat;
quicksand 1:897a1b3f0955 30
quicksand 1:897a1b3f0955 31 /* Serial port over USB */
quicksand 0:49858c4c3500 32 Serial pc(USBTX, USBRX);
quicksand 1:897a1b3f0955 33
quicksand 1:897a1b3f0955 34 /* Serial connection to sigfox modem */
quicksand 0:49858c4c3500 35 Serial modem(PA_9, PA_10);
quicksand 0:49858c4c3500 36
quicksand 1:897a1b3f0955 37
quicksand 1:897a1b3f0955 38 int main()
quicksand 1:897a1b3f0955 39 {
quicksand 0:49858c4c3500 40
quicksand 1:897a1b3f0955 41 /* Setup TD120x */
quicksand 1:897a1b3f0955 42 wait(3);
quicksand 1:897a1b3f0955 43 modem_setup();
quicksand 1:897a1b3f0955 44 /* Test temperature sensor */
quicksand 1:897a1b3f0955 45 float vOut = sensor.Sense();
quicksand 1:897a1b3f0955 46 pc.printf("\n\rMCP9700 reading: Vout: %.2f mV", vOut);
quicksand 0:49858c4c3500 47
quicksand 1:897a1b3f0955 48 /* Turn off all LED */
quicksand 0:49858c4c3500 49 LED_0 = 1;
quicksand 0:49858c4c3500 50 LED_1 = 1;
quicksand 0:49858c4c3500 51 LED_2 = 1;
quicksand 0:49858c4c3500 52 LED_3 = 1;
quicksand 1:897a1b3f0955 53
quicksand 1:897a1b3f0955 54 /* Blinking LED */
quicksand 1:897a1b3f0955 55 heartbeat.attach(&beat, 0.5);
quicksand 1:897a1b3f0955 56
quicksand 1:897a1b3f0955 57 /* Setup button interrupts */
quicksand 1:897a1b3f0955 58 SW2.fall(&sw2interrupt);
quicksand 1:897a1b3f0955 59 SW1.fall(&sw1interrupt);
quicksand 1:897a1b3f0955 60
quicksand 1:897a1b3f0955 61 while(1) {
quicksand 0:49858c4c3500 62 if(pc.readable()) {
quicksand 0:49858c4c3500 63 modem.putc(pc.getc());
quicksand 0:49858c4c3500 64 }
quicksand 0:49858c4c3500 65 if(modem.readable()) {
quicksand 1:897a1b3f0955 66 pc.putc(modem.getc());
quicksand 0:49858c4c3500 67 }
quicksand 0:49858c4c3500 68 }
quicksand 0:49858c4c3500 69 }
quicksand 1:897a1b3f0955 70
quicksand 1:897a1b3f0955 71 void beat()
quicksand 1:897a1b3f0955 72 {
quicksand 1:897a1b3f0955 73 LED_0 = !LED_0;
quicksand 1:897a1b3f0955 74 }
quicksand 1:897a1b3f0955 75
quicksand 1:897a1b3f0955 76 /* Button 1 ISR */
quicksand 1:897a1b3f0955 77 void sw1interrupt()
quicksand 1:897a1b3f0955 78 {
quicksand 1:897a1b3f0955 79 pc.printf("\n\rButton 1 pressed\n\r");
quicksand 1:897a1b3f0955 80 LED_1 = 0;
quicksand 1:897a1b3f0955 81 txData(1);
quicksand 1:897a1b3f0955 82 }
quicksand 1:897a1b3f0955 83
quicksand 1:897a1b3f0955 84 /* Button 2 ISR */
quicksand 1:897a1b3f0955 85 void sw2interrupt()
quicksand 1:897a1b3f0955 86 {
quicksand 1:897a1b3f0955 87 pc.printf("\n\rButton 2 pressed\n\r");
quicksand 1:897a1b3f0955 88 LED_2 = 0;
quicksand 1:897a1b3f0955 89 txData(2);
quicksand 1:897a1b3f0955 90 }
quicksand 1:897a1b3f0955 91
quicksand 1:897a1b3f0955 92
quicksand 1:897a1b3f0955 93 /* TX data over Sigfox */
quicksand 1:897a1b3f0955 94 void txData (uint8_t btn)
quicksand 1:897a1b3f0955 95 {
quicksand 1:897a1b3f0955 96
quicksand 1:897a1b3f0955 97 float tAvg;
quicksand 1:897a1b3f0955 98 char command[32];
quicksand 2:a4a68a858624 99 sensor.Sense();
quicksand 1:897a1b3f0955 100 tAvg = sensor.GetAverageTemp();
quicksand 1:897a1b3f0955 101 char temperature[6] ="";
quicksand 1:897a1b3f0955 102 sprintf(temperature, "%3.1f", tAvg);
quicksand 1:897a1b3f0955 103 for(int i = 0; i < 5; i++)
quicksand 1:897a1b3f0955 104 if(temperature[i]==0) temperature[i] = ' ';
quicksand 3:4da15d6e1429 105 sprintf(command, "AT$SF=0142544e%x20%x%x%x%x%x43,2,0\n", btn+48, temperature[0],temperature[1],temperature[2],temperature[3],temperature[4]);
quicksand 1:897a1b3f0955 106 pc.printf("Sending pressed button %d and temperature %s C over Sigfox.\n", btn, temperature);
quicksand 1:897a1b3f0955 107 pc.printf("using modem command: %s", command);
quicksand 1:897a1b3f0955 108 modem_command_check_ok(command);
quicksand 1:897a1b3f0955 109 LED_1 = 1;
quicksand 1:897a1b3f0955 110 LED_2 = 1;
quicksand 1:897a1b3f0955 111 }
quicksand 1:897a1b3f0955 112
quicksand 1:897a1b3f0955 113 void modem_setup()
quicksand 1:897a1b3f0955 114 {
quicksand 1:897a1b3f0955 115 /* Reset to factory defaults */
quicksand 1:897a1b3f0955 116 if(modem_command_check_ok("AT&F")) {
quicksand 1:897a1b3f0955 117 pc.printf("Factory reset succesfull\r\n");
quicksand 1:897a1b3f0955 118 } else {
quicksand 1:897a1b3f0955 119 pc.printf("Factory reset TD120x failed\r\n");
quicksand 1:897a1b3f0955 120 }
quicksand 1:897a1b3f0955 121 /* Disable local echo */
quicksand 1:897a1b3f0955 122 modem.printf("ATE0\n");
quicksand 1:897a1b3f0955 123 if(modem_command_check_ok("ATE0")) {
quicksand 1:897a1b3f0955 124 pc.printf("Local echo disabled\r\n");
quicksand 1:897a1b3f0955 125 }
quicksand 1:897a1b3f0955 126 /* Write to mem */
quicksand 1:897a1b3f0955 127 if(modem_command_check_ok("AT&W")) {
quicksand 1:897a1b3f0955 128 pc.printf("Settings saved!\r\n");
quicksand 1:897a1b3f0955 129 }
quicksand 1:897a1b3f0955 130 }
quicksand 1:897a1b3f0955 131
quicksand 1:897a1b3f0955 132 /* ISR for serial timeout */
quicksand 1:897a1b3f0955 133 void sertmout()
quicksand 1:897a1b3f0955 134 {
quicksand 1:897a1b3f0955 135 ser_timeout = true;
quicksand 1:897a1b3f0955 136 }
quicksand 1:897a1b3f0955 137
quicksand 1:897a1b3f0955 138 bool modem_command_check_ok(char * command)
quicksand 1:897a1b3f0955 139 {
quicksand 1:897a1b3f0955 140 /* first clear serial data buffers */
quicksand 1:897a1b3f0955 141 while(modem.readable()) modem.getc();
quicksand 1:897a1b3f0955 142 /* Timeout for response of the modem */
quicksand 1:897a1b3f0955 143 Timeout tmout;
quicksand 1:897a1b3f0955 144 ser_timeout = false;
quicksand 1:897a1b3f0955 145 /* Buffer for incoming data */
quicksand 1:897a1b3f0955 146 char responsebuffer[6];
quicksand 1:897a1b3f0955 147 /* Flag to set when we get 'OK' response */
quicksand 1:897a1b3f0955 148 bool ok = false;
quicksand 1:897a1b3f0955 149 bool error = false;
quicksand 1:897a1b3f0955 150 /* Print command to TD120x */
quicksand 1:897a1b3f0955 151 modem.printf(command);
quicksand 1:897a1b3f0955 152 /* Newline to activate command */
quicksand 1:897a1b3f0955 153 modem.printf("\n");
quicksand 1:897a1b3f0955 154 /* Wait untill serial feedback, max 3 seconds before timeout */
quicksand 1:897a1b3f0955 155 tmout.attach(&sertmout, 3.0);
quicksand 1:897a1b3f0955 156 while(!modem.readable()&& ser_timeout == false);
quicksand 1:897a1b3f0955 157 while(!ok && !ser_timeout && !error) {
quicksand 1:897a1b3f0955 158 if(modem.readable()) {
quicksand 1:897a1b3f0955 159 for(int i = 0; i < 5; i++) {
quicksand 1:897a1b3f0955 160 responsebuffer[i] = responsebuffer[i+1];
quicksand 1:897a1b3f0955 161 }
quicksand 1:897a1b3f0955 162 responsebuffer[5] = modem.getc();
quicksand 1:897a1b3f0955 163 if(responsebuffer[0] == '\r' && responsebuffer[1] == '\n' && responsebuffer[2] == 'O' && responsebuffer[3] == 'K' && responsebuffer[4] == '\r' && responsebuffer[5] == '\n' ) {
quicksand 1:897a1b3f0955 164 ok = true;
quicksand 1:897a1b3f0955 165 } else if(responsebuffer[0] == '\r' && responsebuffer[1] == '\n' && responsebuffer[2] == 'E' && responsebuffer[3] == 'R' && responsebuffer[4] == 'R' && responsebuffer[5] == 'O' ) {
quicksand 1:897a1b3f0955 166 error = true;
quicksand 1:897a1b3f0955 167 }
quicksand 1:897a1b3f0955 168 }
quicksand 1:897a1b3f0955 169 }
quicksand 1:897a1b3f0955 170 tmout.detach();
quicksand 1:897a1b3f0955 171 return ok;
quicksand 1:897a1b3f0955 172 }