Abdul Alf / Mbed 2 deprecated SDP_Version3_Abdul

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Dependencies:   BLE_API mbed nRF51822

Fork of SDP_Version3_Abdul by Michael Galis

main.cpp@6:60f89e533491, 2017-02-26 (annotated)

Committer:
alfayeza
Date:
Sun Feb 26 06:22:32 2017 +0000
Revision:
6:60f89e533491
Parent:
4:caab577334f0
Child:
7:79e6de3b27d4
Let me know what you think

Who changed what in which revision?

UserRevisionLine numberNew contents of line
galism 4:caab577334f0 1 /* Senior Project Bluetooth bicycle speedometer
galism 4:caab577334f0 2 Author: Michael Galis
galism 4:caab577334f0 3 This is the main file, it implements both Acceleration Service and Reed Switch
galism 4:caab577334f0 4 Service to send all the necessary data over bluetooth in organized packages.
galism 4:caab577334f0 5 Also there is code to reed from the accelerometer over an I2C connection.
galism 4:caab577334f0 6 */
galism 4:caab577334f0 7
Radoj 0:6bd1a61571d0 8 #include "mbed.h"
Radoj 0:6bd1a61571d0 9 #include "ble/BLE.h"
Radoj 0:6bd1a61571d0 10 #include "MMA8452Q.h"
galism 4:caab577334f0 11 #include "AcclerationService.h"
galism 4:caab577334f0 12 #include "ReedSwitchService.h"
galism 4:caab577334f0 13 #include "BLE_Init.h"
alfayeza 6:60f89e533491 14 //#include <PortInOut.h>
alfayeza 6:60f89e533491 15 #include <DigitalIn.h>
Radoj 0:6bd1a61571d0 16
galism 4:caab577334f0 17 #define REED_SWITCH P0_5
Radoj 0:6bd1a61571d0 18
galism 4:caab577334f0 19 MMA8452Q accel(P0_10, P0_8, 0x1D); //Declare accel object at I2C pins(P0_0 -> SDA, P0_1 -> SCL, 0x1D -> Accelerometer Address )
galism 4:caab577334f0 20 Ticker ticker;
alfayeza 6:60f89e533491 21 Ticker reedTicker;
galism 4:caab577334f0 22 float x,y,z; //variables assigned values to read x, y, and z accelerometer numbers
alfayeza 6:60f89e533491 23 //InterruptIn button(REED_SWITCH);
alfayeza 6:60f89e533491 24 DigitalIn reedPin(REED_SWITCH); // or use DigitalIn readPin(REED_SWITCH, MODE), mode is the initial state of the pin
alfayeza 6:60f89e533491 25 // Modes: PullUp, PullDown, PullNone, or OpenDrain
Radoj 0:6bd1a61571d0 26
galism 4:caab577334f0 27 enum { //Different states of the reed switch
galism 4:caab577334f0 28 RELEASED = 0,
galism 4:caab577334f0 29 PRESSED,
galism 4:caab577334f0 30 IDLE
galism 4:caab577334f0 31 };
galism 4:caab577334f0 32 static uint8_t reedSwitchState = IDLE; //Reed switch is initially idle
galism 4:caab577334f0 33 static volatile bool triggerSensorPolling = false;
Radoj 0:6bd1a61571d0 34
galism 4:caab577334f0 35 void reedSwitchPressedCallback(void) //Change the Reed switch state to Pressed
Radoj 0:6bd1a61571d0 36 {
galism 4:caab577334f0 37 reedSwitchState = PRESSED;
Radoj 0:6bd1a61571d0 38 }
Radoj 0:6bd1a61571d0 39
galism 4:caab577334f0 40 void reedSwitchReleasedCallback(void) //Change the Reed switch state to Released
Radoj 0:6bd1a61571d0 41 {
galism 4:caab577334f0 42 reedSwitchState = RELEASED;
Radoj 0:6bd1a61571d0 43 }
Radoj 0:6bd1a61571d0 44
galism 4:caab577334f0 45 void periodicCallback(void)
Radoj 0:6bd1a61571d0 46 {
galism 4:caab577334f0 47 triggerSensorPolling = true;
galism 4:caab577334f0 48
Radoj 0:6bd1a61571d0 49 }
Radoj 0:6bd1a61571d0 50
alfayeza 6:60f89e533491 51 bool reedBit_is_clear(){
alfayeza 6:60f89e533491 52 if(!reedPin.read()){
alfayeza 6:60f89e533491 53 return true;
alfayeza 6:60f89e533491 54 }
alfayeza 6:60f89e533491 55 else{
alfayeza 6:60f89e533491 56 return false;
alfayeza 6:60f89e533491 57 }
alfayeza 6:60f89e533491 58 }
alfayeza 6:60f89e533491 59
alfayeza 6:60f89e533491 60 void checkForRev(){ //looks the falling edge
alfayeza 6:60f89e533491 61 static uint16_t state = 0; //do need to change the type? the status you have is the same, "static uint16_t"
alfayeza 6:60f89e533491 62 state = (state << 1) | (! reedBit_is_clear()) | 0xE000;
alfayeza 6:60f89e533491 63 if (state == 0xF000) {
alfayeza 6:60f89e533491 64 // in this if statement we want to tell the MCU/App
alfayeza 6:60f89e533491 65 // "hey this is an actual revolution not the switch bouncing"
alfayeza 6:60f89e533491 66 // i.e. something like " switchCount++ "
alfayeza 6:60f89e533491 67
alfayeza 6:60f89e533491 68 //something like
alfayeza 6:60f89e533491 69 //reedSwitchServicePtr->updateReedSwitchState(PRESSED);
alfayeza 6:60f89e533491 70 // ??
alfayeza 6:60f89e533491 71 }
alfayeza 6:60f89e533491 72 }
alfayeza 6:60f89e533491 73
Radoj 0:6bd1a61571d0 74 int main(void)
Radoj 0:6bd1a61571d0 75 {
alfayeza 6:60f89e533491 76 // button.fall(reedSwitchPressedCallback);
alfayeza 6:60f89e533491 77 // button.rise(reedSwitchReleasedCallback);
galism 4:caab577334f0 78
Radoj 0:6bd1a61571d0 79 BLE &ble = BLE::Instance();
Radoj 0:6bd1a61571d0 80 ble.init(bleInitComplete);
Radoj 0:6bd1a61571d0 81
Radoj 0:6bd1a61571d0 82 accel.init();
galism 4:caab577334f0 83 ticker.attach(periodicCallback,0.2);
Radoj 0:6bd1a61571d0 84
alfayeza 6:60f89e533491 85 reedTicker.attach_us(checkForRev, 10000); // calls checkForRev every 10ms
alfayeza 6:60f89e533491 86
Radoj 0:6bd1a61571d0 87 /* SpinWait for initialization to complete. This is necessary because the
Radoj 0:6bd1a61571d0 88 * BLE object is used in the main loop below. */
Radoj 0:6bd1a61571d0 89 while (ble.hasInitialized() == false) { /* spin loop */ }
Radoj 0:6bd1a61571d0 90
Radoj 0:6bd1a61571d0 91 while (true) {
galism 4:caab577334f0 92 if (reedSwitchState != IDLE) { //When the Reed Switch changes states
alfayeza 6:60f89e533491 93 // reedSwitchServicePtr->updateReedSwitchState(reedSwitchState); //update the value over ble
galism 4:caab577334f0 94 reedSwitchState = IDLE;
galism 4:caab577334f0 95 }
galism 4:caab577334f0 96 if (triggerSensorPolling && ble.getGapState().connected)
galism 4:caab577334f0 97 {
galism 4:caab577334f0 98 triggerSensorPolling = false;
galism 4:caab577334f0 99 if(accel.available())
galism 4:caab577334f0 100 {
galism 4:caab577334f0 101 x=accel.readX();
galism 4:caab577334f0 102 y=accel.readY();
galism 4:caab577334f0 103 z=accel.readZ();
galism 4:caab577334f0 104
galism 4:caab577334f0 105 accelerationServicePtr->updateXData(x);
galism 4:caab577334f0 106 accelerationServicePtr->updateYData(y);
galism 4:caab577334f0 107 accelerationServicePtr->updateZData(z);
galism 4:caab577334f0 108 accelerationServicePtr->updateALLState(x,y,z);
galism 4:caab577334f0 109 }
galism 4:caab577334f0 110 }
Radoj 0:6bd1a61571d0 111 ble.waitForEvent();
Radoj 0:6bd1a61571d0 112 }
Radoj 0:6bd1a61571d0 113 }