Hexiwear / Mbed OS Hexi_BLE_Example

Hexiwear Bluetooth Low Energy Example. The device is configured to behave as a sensor tag. This example is to be used with the Hexiwear mobile app on iOS and Android.

Dependencies:   Hexi_KW40Z Hexi_OLED_SSD1351

main.cpp@3:c2ab3a0de448, 2016-09-26 (annotated)

Committer:
cotigac
Date:
Mon Sep 26 05:29:51 2016 +0000
Revision:
3:c2ab3a0de448
Parent:
1:a0d9eeedb771 
Added dummy data generation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
khuang 0:c80666325948 1 #include "mbed.h"
khuang 0:c80666325948 2 #include "Hexi_KW40Z.h"
khuang 0:c80666325948 3 #include "Hexi_OLED_SSD1351.h"
khuang 0:c80666325948 4 #include "OLED_types.h"
khuang 0:c80666325948 5 #include "OpenSans_Font.h"
khuang 0:c80666325948 6 #include "string.h"
khuang 0:c80666325948 7
khuang 0:c80666325948 8 #define LED_ON 0
khuang 0:c80666325948 9 #define LED_OFF 1
cotigac 3:c2ab3a0de448 10
cotigac 3:c2ab3a0de448 11 void UpdateSensorData(void);
khuang 0:c80666325948 12 void StartHaptic(void);
khuang 0:c80666325948 13 void StopHaptic(void const *n);
khuang 1:a0d9eeedb771 14 void txTask(void);
khuang 0:c80666325948 15
khuang 0:c80666325948 16 DigitalOut redLed(LED1,1);
khuang 0:c80666325948 17 DigitalOut greenLed(LED2,1);
khuang 0:c80666325948 18 DigitalOut blueLed(LED3,1);
khuang 0:c80666325948 19 DigitalOut haptic(PTB9);
khuang 0:c80666325948 20
khuang 0:c80666325948 21 /* Define timer for haptic feedback */
khuang 0:c80666325948 22 RtosTimer hapticTimer(StopHaptic, osTimerOnce);
khuang 0:c80666325948 23
khuang 0:c80666325948 24 /* Instantiate the Hexi KW40Z Driver (UART TX, UART RX) */
khuang 0:c80666325948 25 KW40Z kw40z_device(PTE24, PTE25);
khuang 0:c80666325948 26
khuang 0:c80666325948 27 /* Instantiate the SSD1351 OLED Driver */
khuang 0:c80666325948 28 SSD1351 oled(PTB22,PTB21,PTC13,PTB20,PTE6, PTD15); /* (MOSI,SCLK,POWER,CS,RST,DC) */
khuang 0:c80666325948 29
khuang 1:a0d9eeedb771 30 /*Create a Thread to handle sending BLE Sensor Data */
khuang 1:a0d9eeedb771 31 Thread txThread;
khuang 0:c80666325948 32
khuang 1:a0d9eeedb771 33 /* Text Buffer */
khuang 1:a0d9eeedb771 34 char text[20];
khuang 1:a0d9eeedb771 35
cotigac 3:c2ab3a0de448 36 uint8_t battery = 100;
cotigac 3:c2ab3a0de448 37 uint8_t light = 0;
cotigac 3:c2ab3a0de448 38 uint16_t humidity = 4500;
cotigac 3:c2ab3a0de448 39 uint16_t temperature = 2000;
cotigac 3:c2ab3a0de448 40 uint16_t pressure = 9000;
cotigac 3:c2ab3a0de448 41 uint16_t x = 0;
cotigac 3:c2ab3a0de448 42 uint16_t y = 5000;
cotigac 3:c2ab3a0de448 43 uint16_t z = 10000;
cotigac 3:c2ab3a0de448 44
khuang 1:a0d9eeedb771 45 /****************************Call Back Functions*******************************/
khuang 0:c80666325948 46 void ButtonRight(void)
khuang 0:c80666325948 47 {
khuang 0:c80666325948 48 StartHaptic();
khuang 0:c80666325948 49 kw40z_device.ToggleAdvertisementMode();
khuang 0:c80666325948 50 }
khuang 0:c80666325948 51
khuang 0:c80666325948 52 void ButtonLeft(void)
khuang 0:c80666325948 53 {
khuang 0:c80666325948 54 StartHaptic();
khuang 0:c80666325948 55 kw40z_device.ToggleAdvertisementMode();
khuang 0:c80666325948 56 }
khuang 0:c80666325948 57
khuang 0:c80666325948 58 void PassKey(void)
khuang 0:c80666325948 59 {
khuang 0:c80666325948 60 StartHaptic();
khuang 0:c80666325948 61 strcpy((char *) text,"PAIR CODE");
khuang 1:a0d9eeedb771 62 oled.TextBox((uint8_t *)text,0,25,95,18);
khuang 0:c80666325948 63
khuang 0:c80666325948 64 /* Display Bond Pass Key in a 95px by 18px textbox at x=0,y=40 */
khuang 0:c80666325948 65 sprintf(text,"%d", kw40z_device.GetPassKey());
khuang 0:c80666325948 66 oled.TextBox((uint8_t *)text,0,40,95,18);
khuang 0:c80666325948 67 }
khuang 1:a0d9eeedb771 68
khuang 1:a0d9eeedb771 69 /***********************End of Call Back Functions*****************************/
khuang 1:a0d9eeedb771 70
khuang 1:a0d9eeedb771 71 /********************************Main******************************************/
khuang 1:a0d9eeedb771 72
khuang 0:c80666325948 73 int main()
khuang 0:c80666325948 74 {
cotigac 3:c2ab3a0de448 75 /* Register callbacks to application functions */
cotigac 3:c2ab3a0de448 76 kw40z_device.attach_buttonLeft(&ButtonLeft);
cotigac 3:c2ab3a0de448 77 kw40z_device.attach_buttonRight(&ButtonRight);
cotigac 3:c2ab3a0de448 78 kw40z_device.attach_passkey(&PassKey);
khuang 0:c80666325948 79
khuang 0:c80666325948 80 /* Turn on the backlight of the OLED Display */
khuang 0:c80666325948 81 oled.DimScreenON();
khuang 0:c80666325948 82
khuang 0:c80666325948 83 /* Fills the screen with solid black */
khuang 0:c80666325948 84 oled.FillScreen(COLOR_BLACK);
cotigac 3:c2ab3a0de448 85
cotigac 3:c2ab3a0de448 86 /* Get OLED Class Default Text Properties */
cotigac 3:c2ab3a0de448 87 oled_text_properties_t textProperties = {0};
cotigac 3:c2ab3a0de448 88 oled.GetTextProperties(&textProperties);
khuang 0:c80666325948 89
khuang 0:c80666325948 90 /* Change font color to Blue */
khuang 0:c80666325948 91 textProperties.fontColor = COLOR_BLUE;
khuang 0:c80666325948 92 oled.SetTextProperties(&textProperties);
khuang 0:c80666325948 93
khuang 0:c80666325948 94 /* Display Bluetooth Label at x=17,y=65 */
khuang 0:c80666325948 95 strcpy((char *) text,"BLUETOOTH");
khuang 0:c80666325948 96 oled.Label((uint8_t *)text,17,65);
khuang 0:c80666325948 97
khuang 0:c80666325948 98 /* Change font color to white */
khuang 0:c80666325948 99 textProperties.fontColor = COLOR_WHITE;
khuang 0:c80666325948 100 textProperties.alignParam = OLED_TEXT_ALIGN_CENTER;
khuang 0:c80666325948 101 oled.SetTextProperties(&textProperties);
khuang 0:c80666325948 102
khuang 1:a0d9eeedb771 103 /* Display Label at x=22,y=80 */
khuang 0:c80666325948 104 strcpy((char *) text,"Tap Below");
khuang 0:c80666325948 105 oled.Label((uint8_t *)text,22,80);
khuang 0:c80666325948 106
khuang 1:a0d9eeedb771 107 uint8_t prevLinkState = 0;
cotigac 3:c2ab3a0de448 108 uint8_t currLinkState = 0;
cotigac 3:c2ab3a0de448 109
khuang 1:a0d9eeedb771 110 txThread.start(txTask); /*Start transmitting Sensor Tag Data */
khuang 0:c80666325948 111
khuang 1:a0d9eeedb771 112 while (true)
khuang 1:a0d9eeedb771 113 {
khuang 1:a0d9eeedb771 114 blueLed = !kw40z_device.GetAdvertisementMode(); /*Indicate BLE Advertisment Mode*/
khuang 1:a0d9eeedb771 115 Thread::wait(50);
khuang 1:a0d9eeedb771 116 }
khuang 1:a0d9eeedb771 117 }
khuang 1:a0d9eeedb771 118
khuang 1:a0d9eeedb771 119 /******************************End of Main*************************************/
khuang 1:a0d9eeedb771 120
khuang 1:a0d9eeedb771 121
khuang 1:a0d9eeedb771 122 /* txTask() transmits the sensor data */
khuang 1:a0d9eeedb771 123 void txTask(void){
khuang 1:a0d9eeedb771 124
khuang 1:a0d9eeedb771 125 while (true)
khuang 1:a0d9eeedb771 126 {
cotigac 3:c2ab3a0de448 127 UpdateSensorData();
khuang 0:c80666325948 128
khuang 1:a0d9eeedb771 129 /*Notify Hexiwear App that it is running Sensor Tag mode*/
khuang 0:c80666325948 130 kw40z_device.SendSetApplicationMode(GUI_CURRENT_APP_SENSOR_TAG);
khuang 0:c80666325948 131
khuang 1:a0d9eeedb771 132 /*The following is sending dummy data over BLE. Replace with real data*/
khuang 1:a0d9eeedb771 133
khuang 0:c80666325948 134 /*Send Battery Level for 20% */
cotigac 3:c2ab3a0de448 135 kw40z_device.SendBatteryLevel(battery);
khuang 0:c80666325948 136
khuang 0:c80666325948 137 /*Send Ambient Light Level at 50% */
cotigac 3:c2ab3a0de448 138 kw40z_device.SendAmbientLight(light);
khuang 0:c80666325948 139
khuang 0:c80666325948 140 /*Send Humidity at 90% */
cotigac 3:c2ab3a0de448 141 kw40z_device.SendHumidity(humidity);
khuang 0:c80666325948 142
khuang 0:c80666325948 143 /*Send Temperature at 25 degrees Celsius */
cotigac 3:c2ab3a0de448 144 kw40z_device.SendTemperature(temperature);
khuang 0:c80666325948 145
khuang 0:c80666325948 146 /*Send Pressure at 100kPA */
cotigac 3:c2ab3a0de448 147 kw40z_device.SendPressure(pressure);
khuang 0:c80666325948 148
khuang 1:a0d9eeedb771 149 /*Send Mag,Accel,Gyro Data. */
cotigac 3:c2ab3a0de448 150 kw40z_device.SendGyro(x,y,z);
cotigac 3:c2ab3a0de448 151 kw40z_device.SendAccel(z,x,y);
cotigac 3:c2ab3a0de448 152 kw40z_device.SendMag(y,z,x);
cotigac 3:c2ab3a0de448 153
khuang 1:a0d9eeedb771 154 Thread::wait(1000);
khuang 0:c80666325948 155 }
khuang 0:c80666325948 156 }
khuang 0:c80666325948 157
cotigac 3:c2ab3a0de448 158 void UpdateSensorData(void)
cotigac 3:c2ab3a0de448 159 {
cotigac 3:c2ab3a0de448 160 battery -= 5;
cotigac 3:c2ab3a0de448 161 if(battery < 5) battery = 100;
cotigac 3:c2ab3a0de448 162
cotigac 3:c2ab3a0de448 163 light += 20;
cotigac 3:c2ab3a0de448 164 if(light > 100) light = 0;
cotigac 3:c2ab3a0de448 165
cotigac 3:c2ab3a0de448 166 humidity += 500;
cotigac 3:c2ab3a0de448 167 if(humidity > 8000) humidity = 2000;
cotigac 3:c2ab3a0de448 168
cotigac 3:c2ab3a0de448 169 temperature -= 200;
cotigac 3:c2ab3a0de448 170 if(temperature < 200) temperature = 4200;
cotigac 3:c2ab3a0de448 171
cotigac 3:c2ab3a0de448 172 pressure += 300;
cotigac 3:c2ab3a0de448 173 if(pressure > 10300) pressure = 7500;
cotigac 3:c2ab3a0de448 174
cotigac 3:c2ab3a0de448 175 x += 1400;
cotigac 3:c2ab3a0de448 176 y -= 2300;
cotigac 3:c2ab3a0de448 177 z += 1700;
cotigac 3:c2ab3a0de448 178 }
cotigac 3:c2ab3a0de448 179
khuang 1:a0d9eeedb771 180 void StartHaptic(void) {
khuang 0:c80666325948 181 hapticTimer.start(50);
khuang 0:c80666325948 182 haptic = 1;
khuang 0:c80666325948 183 }
khuang 0:c80666325948 184
khuang 0:c80666325948 185 void StopHaptic(void const *n) {
khuang 0:c80666325948 186 haptic = 0;
khuang 0:c80666325948 187 hapticTimer.stop();
khuang 0:c80666325948 188 }
khuang 1:a0d9eeedb771 189