Hexiwear_zeta
The HexiHeart is a demo project product that takes advantage of many of the onboard Hexiwear sensors and capabilities to create a multifunctional fitness and safety watch.
Dependencies: FXAS21002 FXOS8700 Hexi_KW40Z Hexi_OLED_SSD1351 MAXIM W25Q64FVSSIG HTU21D MPL3115A2 TSL2561
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HexiHeart_Alex
by 
Hexiwear_zeta
Diff: main.cpp
- Revision:
- 4:0803151bc5e4
- Parent:
- 3:6792c1ba586c
- Child:
- 5:e1431272be79
--- a/main.cpp Thu Feb 08 03:25:01 2018 +0000
+++ b/main.cpp Mon Feb 12 19:31:23 2018 +0000
@@ -13,10 +13,14 @@
#include "FXOS8700.h" // 3D Accelorometer & Mag
#include "FXAS21002.h" // 3-Axis Gyroscope
#include "Hexi_OLED_SSD1351.h" // OLED fuctions
+ // Non-Freescale HTU21D - combo temperature and Humidity
+#include "W25Q64FV.h" // W25Q64FVSSIG Serial Flash
+ // Non-Freescale MPL3115A2 - pressure sensor
+#include "Hexi_Battery/hexi_battery.h" // Battery status
#include "OLED_types.h" // Text attributs
#include "string.h"
#include "OpenSans_Font.h"
-#include "MAX30101.h"
+#include "MAX30101.h" // Non-Freescale MAX30101 - Optical Heart rate sensor
/* We need to confirm whether it's better to include and
@@ -36,13 +40,15 @@
#define EXIT_BELOW 75
#define EXIT_ABOVE 100
#define VIB_OPT_2 75
+#define FXOS8700_I2C_ADDRESS_ (0x1E<<1) //pins SA0,SA1=0
void StartHaptic(void);
void StartHaptic(int x);
void StopHaptic(void const *n);
void error_screen(void);
-void update_display(void);
+void update_display(void);// Screen lables refreshed
+void update_data(void); // Screen data(only)refreshed
void Decrement_Age();
void Set_Max_Bpm();
void Set_Zone_Boundaries();
@@ -59,6 +65,11 @@
void Disable_Heart_Rate();
void Led_Zone_Indicator();
+void fall_config(uint8_t);
+void fall_detect(void);
+void fall_det_end(void);
+void fall_detect_off(void);
+void impact_detect(void);
// ***************** Global variables ***********************
char text_1[20]; // Text buffer - Do we need more?
@@ -66,7 +77,7 @@
bool Led_Zones = 1;
bool HR_Enable = 0;
bool OLED_ON = 1; // Turn OLED power on/off
-bool Fall_Alert = 0; // Initialize as no active alert
+bool Fall_Alert = 1; // Initialize as no active alert
bool Panic_Alert = 0; // Initialize as no active alert
bool Fall_Alert_Mode = 1; // Initialize with fall alert mode on
bool Heart_Rate_Mode = 0; // Initialize with Heart rate off
@@ -99,10 +110,24 @@
FXOS8700 mag(PTC11, PTC10); // Mag (same chip as Accel)
//MAX30101 heart(PTB1, PTB0); //Heart Rate Chip
+// initialize I2C bus for FXOS8700, FXAS-Gyro, MPL-Pressure
+ I2C i2c_bus1(PTC11, PTC10); // (SDA, SCL)
+
DigitalOut RED_Led(LED1);
DigitalOut GRN_Led(LED2);
DigitalOut BLU_Led(LED3);
DigitalOut haptic(PTB9);
+DigitalOut Led_clk1(PTA12);
+DigitalOut Led_clk2(PTA13);
+DigitalOut Led_clk3(PTA14);
+
+DigitalOut OLED_PWR(PTC13); // this pin turns on/off 15V to OLED display
+DigitalOut Non_Free_PWR(PTB13); // this pin turns on/off non-freescale sensors (Pres/Temp/Hum/Light)
+DigitalOut HR_PWR(PTA29); // this pin turns on/off Heart rate sensor
+//DigitalIn Sw1(PTA12); //Switch 'T1' on docking station AND Led_clk1!!
+//DigitalIn Sw2(PTA13); //Switch 'T2' on docking station AND Led_clk2!!
+DigitalIn Sw3(PTA15); //Switch 'T3' on docking station
+
/* Instantiate the Hexi KW40Z Driver (UART TX, UART RX) */
KW40Z kw40z_device(PTE24, PTE25);
@@ -110,14 +135,18 @@
/* Define timer for haptic feedback */
RtosTimer hapticTimer(StopHaptic, osTimerOnce);
+//***************** Interrups *****************
+InterruptIn Accel_INT1(PTC1); // Accel sensor's interupt 1
+InterruptIn Accel_INT2(PTD13); // Accel sensor's interupt 2
+
//***************** Tickers and Timers *****************
Ticker Screen_Timer;// use ticker to turn off OLED
-void timout_timer() // turn off display mode
-{
- oled.FillScreen(COLOR_BLACK); // Clear screen.. is there a better command for this?
- OLED_ON = 0; // set flag to off
- Screen_Timer.detach();
+void timout_timer(){ // turn off display mode
+// oled.FillScreen(COLOR_BLACK); // Clear screen.. is there a better command for this?
+ OLED_PWR = 0; // Turn off OLED power supply
+ OLED_ON = 0; // set flag to off
+ Screen_Timer.detach(); // detach Ticker
}//end routine
void ButtonUp(void)
@@ -421,7 +450,15 @@
}
case 2: {// Fall Alert option
StartHaptic();
- // toggle on/off
+ if(Fall_Alert == 1){
+ Accel_INT1.fall(&fall_detect_off); // turn off Accel sensor's int#1 calls interupt routine
+ Fall_Alert = 0;
+ }
+ else{
+ Accel_INT1.fall(&fall_detect); // Accel sensor's int#1 calls interupt routine
+ Fall_Alert = 1;
+ }
+ update_display();
break;
}
case 3: {// Heart Rate Monitoring option
@@ -668,24 +705,39 @@
int main()
{
+ OLED_PWR = 1; // Turn on OLED power supply
oled.FillScreen(COLOR_BLACK); // Clear screen
// ***************** Local variables ***********************
// float accel_data[3]; float accel_rms=0.0;
-
+ int i;
+
// ************** configure sensor modules ******************
- accel.accel_config();
+ // accel.accel_config(); // configure sensor
+ fall_config(1); // configure sensor for fall detect
+ // Fall_config(Fall_Alert_Mode); // configure sensor for fall mode
mag.mag_config();
-// gyro.gyro_config();
+ gyro.gyro_config();
RED_Led = LED_OFF;
GRN_Led = LED_OFF;
BLU_Led = LED_OFF;
+ Led_clk1 = 0; // LEDs on docking station default to off, need to turn on with a 1
+ Led_clk2 = 0; // LEDs on docking station default to off, need to turn on with a 1
+ Led_clk3 = 0; // LEDs on docking station default to off, need to turn on with a 1
+ Non_Free_PWR = 1; // Start with non-freescale sensors (Pres/Temp/Hum/Light)on
+ HR_PWR = 1; // Start with Heart rate sensor powered on
+
// ***** Register callbacks/interupts to application functions *********
kw40z_device.attach_buttonUp(&ButtonUp);
kw40z_device.attach_buttonDown(&ButtonDown);
kw40z_device.attach_buttonLeft(&ButtonLeft);
kw40z_device.attach_buttonRight(&ButtonRight);
- kw40z_device.attach_buttonSlide(&ButtonSlide);
+ // kw40z_device.attach_buttonSlide(&ButtonSlide);
+
+// ***** attaching interupts to functions *********
+ Accel_INT1.fall(&fall_detect); // Accel sensor's int#1 calls interupt routine
+ // Accel_INT2.fall(&impact_detect); //Accel sensor's int#2 calls interupt routine
+
// **** Get OLED Class Default Text Properties ****************
oled_text_properties_t textProperties = {0};
@@ -715,20 +767,56 @@
Screen_Timer.attach(&timout_timer,(SCRN_TIME));//start ticker timer for turning off LCD
// ******************* Main Loop *************************
while (true) {
+ i=0;
+ while (i<20)// used for "Heart beat flash and updated any displayed data)
+ {
+ Thread::wait(500); // wait 0.5 sec each loop
+ if(OLED_PWR==1){
+ // update_data();
+ }// end if
+ i++;
+ }// end while(i<20)
+// wait(10); // wait 10 sec each loop, was orig half sec
+ RED_Led = LED_ON; // Used only for diagnostic of wait command
+ Led_clk3 = 1; // Used only for diagnostic of wait command
+ wait(0.01); // BLIP led 1/10 sec each loop
+ RED_Led = LED_OFF; // Used only for diagnostic of wait command
+ Led_clk3 = 0;
+ Thread::wait(490); // keep up the pace, at 0.5 sec (0.01s+0.49s) update date
- Thread::wait(500); // wait half a sec in each loop
- }
+// update_data(); // refresh display date w/o updating entire display
+
+ } // end of while(true)
+
}
// ************** end of main()
void update_display(void)
{
+ OLED_PWR = 1; // make sure OLED power supply is on
oled_text_properties_t textProperties = {0}; // Need these to change font color
oled.GetTextProperties(&textProperties); // Need these to change font color
switch(Screen_Num) {
case 0: {// Main Screen
+ HexiwearBattery battery;
+ battery.sensorOn();
oled.FillScreen(COLOR_BLACK); // Clear screen
- oled.Label((uint8_t *)"Batt",60,0); // Display "Batt" at x,y
+
+ if (battery.isBatteryCharging()) {
+ textProperties.fontColor = COLOR_GREEN;
+ oled.SetTextProperties(&textProperties);
+ // sprintf(text_1, "%s", "chrg");
+ sprintf(text_1, "%i%%+", (uint8_t)battery.readLevelPercent());
+ Screen_Timer.attach(&timout_timer,(SCRN_TIME));// Reset/restart ticker timer for OLED while fully charged
+ } else {
+ sprintf(text_1, "%i%%", (uint8_t)battery.readLevelPercent());
+ }
+ oled.TextBox((uint8_t *)text_1,60,0,35,15); //show level value of battery originaly at 55,40,35,15
+
+ textProperties.fontColor = COLOR_WHITE;
+ oled.SetTextProperties(&textProperties);
+
+ oled.Label((uint8_t *)"Batt",35,0); // Display "Batt" at x,y
oled.Label((uint8_t *)"Date",35,20); // Display "Date" at x,y
oled.Label((uint8_t *)"Time",35,40); // Display "Time" at x,y
oled.Label((uint8_t *)"H.I.",10,80); // Display "H.I." at x,y
@@ -751,6 +839,13 @@
case 2: {// Fall Alert option
oled.FillScreen(COLOR_BLACK); // Clear screen
oled.Label((uint8_t *)"Fall Alert",20,5); // Display at x,y
+ oled.Label((uint8_t *)"Protection",15,25);
+ if (Fall_Alert == 1){
+ oled.Label((uint8_t *)" On ",42,40);
+ }
+ else {
+ oled.Label((uint8_t *)" Off ",40,40);
+ }
oled.Label((uint8_t *)"*",85,15); // "*" at x,y
oled.Label((uint8_t *)"*",85,60); // "*" at x,y
oled.Label((uint8_t *)"Back",10,80); // Display "Back" at x,y
@@ -1516,7 +1611,7 @@
} else {
Heart_Rate -= 1;
}
-}
+} // end of Decrement_Heart_Rate
void Led_Zone_Indicator()
{
@@ -1568,6 +1663,178 @@
wait(0.5);
RED_Led = LED_OFF;
}
- }
+ }
+}//end of Led_Zone_Indicator
+/*****************************************************************************
+Name: fall_detect()
+Purpose: Interupt rutine called when accelerometer IC has detected a free-fall >= 0.5g
+
+******************************************************************************/
+
+void fall_detect(){// fall detect interupt rutine
+if(Fall_Alert == 1){
+
+// for now just turn on display and give haptic feedback
+ Screen_Num = 22; //Change to screen 22 (Fall diag screen)
+ Screen_Timer.attach(&timout_timer,(SCRN_TIME));// Reset/restart ticker timer for OLED
+ if (OLED_ON == 0) {
+ OLED_ON = 1; // Scree was off, set to On
+ } // endif
+
+//__disable_irq(); // Disable all Interrupts
+// oled.Label((uint8_t *)" Fall Detected ",05,70); // Display at x,y
+
+ update_display();
+ BLU_Led = LED_ON; // LEDs default to on, need to turn off
+ Led_clk2 = 1; // Turn LED2 on docking station on
+ haptic = 1;
+ Accel_INT1.rise(&fall_det_end); // Accel sensor's int#1 calls interupt routine
+//__enable_irq(); // Enable all Interrupts
+}// end if
+}//end fall_detect interupt routine
+
+
+void fall_detect_off(){// fall detect interupt rutine
+// for now just turn on display and give haptic feedback
+}//end fall_detect_off interupt routine
+
+void fall_det_end(){
+ haptic = 0; // Turn off Haptic
+ BLU_Led = LED_OFF; // Turn off HexiHeart Blue LED
+ Led_clk2 = 0; // Turn off LED2 on docking station on
+ oled.Label((uint8_t *)" ",05,70); // clear display at x,y
+ Accel_INT1.fall(&fall_detect); // Accel sensor's int#1 calls interupt routine
+} //end fall_det_end interupt routine
+
+/*****************************************************************************
+Name: impact_detect()
+Purpose: Interupt rutine called when accelerometer IC has detected a vector
+magnitude acceleration >= 3.0g
+
+******************************************************************************/
+
+void impact_detect(){
+ // oled.Label((uint8_t *)" Impact Detected ",05,60); // Display at x,y
+ // GRN_Led = LED_ON; // LEDs default to on, need to turn off
+ Led_clk3 = 1; // Turn LED2 on docking station on
+}//end impact_detect interupt routine
+
+/*****************************************************************************
+Name: fall_config()
+Purpose: Used to set accelerometer IC's internal registers to set up chip level
+interrupts
+Inputs: int value from 0 to 256
+Returns: None
+******************************************************************************/
+
-}
+void fall_config(uint8_t Num){
+// use case switches here to configure for
+switch(Num) {
+ case 0: {// configure as normal (or maybe sleep)
+ char d[2];
+ d[0] = FXOS8700_CTRL_REG1; //Puts device in Standby mode
+ d[1] = 0x00;
+ i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2);
+
+ d[0] = FXOS8700_CTRL_REG1; //Puts device back into active mode
+ d[1] = 0x01;
+ i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d, 2);
+ oled.Label((uint8_t *)" Mode 0 ",30,60); // Display "mode" at x,y
+ break;
+ }
+ case 1: {// configure for free-fall int
+ StartHaptic(); // for debug
+ char d[2];
+ d[0] = FXOS8700_CTRL_REG1; //Config reg1
+ d[1] = 0x00; //Put device in Standby mode
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step1 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x0e; //XYZ_DATA_CFG (set full-scall range)
+ d[1] = 0b00000000; //Set data to default range of +/-2g for full range (2x0.488mg/LSB), High-pass filter off
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step1a error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x0a; //TRIG_CFG (address of trigger config reg)
+ d[1] = 0b00000100; //Trigger on freefall
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step2 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x15; //A_FFMT_CFG (address of Free fall trigger config reg), write in Standby only
+ d[1] = 0b00111000; //set to freefall, and look at all axis.
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step3 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x17; //A_FFMT_THS (address of Free fall threshold reg), write in Active or Standby
+ d[1] = 0b00001000; //set freefall threshold to about 756mg for now
+ // d[1] = uint8_t(1000*Fall_Thresh/63); //set freefall threshold - Resolution is 63mg/LSB, 0b111_1111 is maximum value
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step4 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x18; //A_FFMT_COUNT (address of Free fall debounce counter), write in Active or Standby
+ d[1] = 0b00000110; //with ODR at 100Hz, should equal 60mS debounce time or 120mS in Sleep
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step5 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x2b; //CTRL_REG2 (address of control reg), write in Standby only
+ d[1] = 0b00001101; //Turns Auto-Sleep mode on and low-noise, low power
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step6 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x2c; //CTRL_REG3 (address of Int control reg), write in Standby only
+ d[1] = 0b00001000; //FFMT will wake chip from sleep, int are active high
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step7 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x2d; //CTRL_REG4 (address of Int enable reg), write in Standby only
+ d[1] = 0b00000100; // FFMT int enabled and for debug I'm using a sleep int
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step8 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = 0x2e; //CTRL_REG5 (Int routing reg), write in Standby only
+ d[1] = 0b00000100; // Make FFMT int output on pin INT1(PTC1)
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step9 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ d[0] = FXOS8700_CTRL_REG1; //CTRL_REG1, write in Standby only except for bit[0]
+ d[1] = 0b00011001; //Auto-Sleep mode on set to 50Hz, ODR set to 100Hz Puts device back into Active mode
+ if(i2c_bus1.write(FXOS8700_I2C_ADDRESS_, d,2) ==1){
+ oled.Label((uint8_t *)" Step10 error ",30,05); // Display "error" at x,y
+ wait(3.0); // display for 3 seconds
+ }//end if
+
+ //oled.FillScreen(COLOR_BLACK); // Clear screen
+ oled.Label((uint8_t *)" Mode 1 ",30,60); // Display "mode" at x,y
+ GRN_Led = LED_ON; // LEDs default to on, need to turn on
+ break;
+ }
+ default: {
+ oled.Label((uint8_t *)" Mode ? ",30,60); // Display "mode" at x,y
+ // unknown config
+ break;
+ }
+}// end switch
+
+}// end Fall_config
+