Jurica Resetar / Mbed OS acd52832_BLE_VF_GeoBeacon

Geo beacon for VF.

Dependencies:   MMA8452 aconno_bsp adc52832_common

main.cpp@6:d14e3df498f4, 2017-07-19 (annotated)

Committer:
jurica238814
Date:
Wed Jul 19 12:07:23 2017 +0000
Revision:
6:d14e3df498f4
Parent:
5:0f42dcae4cdf
Child:
8:570eb66d50b5
Dummy commit.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jurica238814 1:5f34885f5cff 1 /*
jurica238814 0:f8c1e0b2d473 2 *
jurica238814 1:5f34885f5cff 3 * Made by Jurica Resetar @ aconno
jurica238814 1:5f34885f5cff 4 * aconno.de
jurica238814 6:d14e3df498f4 5 * All rights reserved
jurica238814 0:f8c1e0b2d473 6 *
jurica238814 0:f8c1e0b2d473 7 */
jurica238814 0:f8c1e0b2d473 8
jurica238814 0:f8c1e0b2d473 9 #include "mbed.h"
jurica238814 0:f8c1e0b2d473 10 #include "ble/BLE.h"
jurica238814 1:5f34885f5cff 11 #include "GapAdvertisingData.h"
jurica238814 0:f8c1e0b2d473 12 #include "acd52832_bsp.h"
jurica238814 6:d14e3df498f4 13 #include "mma8452.h"
jurica238814 1:5f34885f5cff 14
jurica238814 3:2a4ac5b87046 15 #define SLEEP_TIME (0.85) // Sleep time in seconds WAS 0.85
jurica238814 3:2a4ac5b87046 16 #define AWAKE_TIME (0.15) // Was 0.15
jurica238814 1:5f34885f5cff 17 #define BUZZER (p31)
jurica238814 0:f8c1e0b2d473 18
jurica238814 1:5f34885f5cff 19 /* Static constants for the BLE example */
jurica238814 3:2a4ac5b87046 20 #define MAX_BLE_PACKET_SIZE (31)
jurica238814 3:2a4ac5b87046 21 #define MSD_SIZE (18)
jurica238814 3:2a4ac5b87046 22 #define MSD_ID (0xFF)
jurica238814 3:2a4ac5b87046 23 #define BUZZ_TIME (1.0) // Buzz time in s
jurica238814 1:5f34885f5cff 24
jurica238814 6:d14e3df498f4 25 /* Static constants for the accelerometer */
jurica238814 6:d14e3df498f4 26 #define WHO_AM_I 0x0D // Type 'read' : This should return the device id of 0x2A
jurica238814 6:d14e3df498f4 27 #define OUT_Z_MSB 0x05 // Type 'read' : z axis - 8 most significatn bit of a 12 bit sample
jurica238814 6:d14e3df498f4 28 #define I2C_DATA (p29)
jurica238814 6:d14e3df498f4 29 #define I2C_CLK (p2)
jurica238814 6:d14e3df498f4 30 #define INT2_PIN (p4)
jurica238814 0:f8c1e0b2d473 31
jurica238814 6:d14e3df498f4 32
jurica238814 6:d14e3df498f4 33 //uint8_t SLEEP = true;
jurica238814 0:f8c1e0b2d473 34 int8_t txPower = 4;
jurica238814 1:5f34885f5cff 35 uint8_t MSD[MSD_SIZE] = {0x59, 0x00, 0xE1, 0x61, 0x35, 0xBA, 0xC0, 0xEC, 0x47, 0x2A, 0x98, 0x00, 0xAF, 0x18, 0x43, 0xFF, 0x05, 0x00};
jurica238814 6:d14e3df498f4 36 uint8_t my_mac_address[6] = {};
jurica238814 6:d14e3df498f4 37 uint8_t buzzer_flag = 0;
jurica238814 0:f8c1e0b2d473 38
jurica238814 2:5504b714c9ae 39 void turnBuzzOff(void);
jurica238814 2:5504b714c9ae 40 void goToSleep();
jurica238814 0:f8c1e0b2d473 41
jurica238814 2:5504b714c9ae 42 Ticker WakeSleepT;
jurica238814 2:5504b714c9ae 43 Ticker turnBuzzOffT;
jurica238814 1:5f34885f5cff 44 PwmOut buzzer(BUZZER);
jurica238814 6:d14e3df498f4 45 PwmOut gyro_power(p7);
jurica238814 6:d14e3df498f4 46 PwmOut i2c_power(p5); // I2C Pull-ups power pin
jurica238814 6:d14e3df498f4 47 InterruptIn gyro_pulse(INT2_PIN);
jurica238814 6:d14e3df498f4 48 Acc_MMA8452 acc(I2C_DATA, I2C_CLK, MMA8452_ADDRESS);
jurica238814 1:5f34885f5cff 49 BLE &ble = BLE::Instance();
jurica238814 2:5504b714c9ae 50
jurica238814 0:f8c1e0b2d473 51 /* Restart Advertising on disconnection*/
jurica238814 0:f8c1e0b2d473 52 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params){
jurica238814 0:f8c1e0b2d473 53 BLE::Instance().gap().startAdvertising();
jurica238814 0:f8c1e0b2d473 54 }
jurica238814 0:f8c1e0b2d473 55
jurica238814 3:2a4ac5b87046 56 /**
jurica238814 3:2a4ac5b87046 57 * The function is called when ticker generates interrupt
jurica238814 3:2a4ac5b87046 58 */
jurica238814 2:5504b714c9ae 59 void turnBuzzOff(void){
jurica238814 2:5504b714c9ae 60 buzzer.write(0.0F);
jurica238814 2:5504b714c9ae 61 turnBuzzOffT.detach();
jurica238814 2:5504b714c9ae 62 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 1:5f34885f5cff 63 }
jurica238814 0:f8c1e0b2d473 64
jurica238814 0:f8c1e0b2d473 65 /**
jurica238814 0:f8c1e0b2d473 66 * This function is called when the ble initialization process has failed
jurica238814 0:f8c1e0b2d473 67 */
jurica238814 0:f8c1e0b2d473 68 void onBleInitError(BLE &ble, ble_error_t error){
jurica238814 0:f8c1e0b2d473 69 /* Avoid compiler warnings */
jurica238814 0:f8c1e0b2d473 70 (void) ble;
jurica238814 0:f8c1e0b2d473 71 (void) error;
jurica238814 0:f8c1e0b2d473 72 /* Initialization error handling should go here */
jurica238814 0:f8c1e0b2d473 73 }
jurica238814 0:f8c1e0b2d473 74
jurica238814 0:f8c1e0b2d473 75 /**
jurica238814 0:f8c1e0b2d473 76 * Callback triggered when the ble initialization process has finished
jurica238814 0:f8c1e0b2d473 77 */
jurica238814 0:f8c1e0b2d473 78 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params){
jurica238814 0:f8c1e0b2d473 79 BLE& ble = params->ble;
jurica238814 0:f8c1e0b2d473 80 ble_error_t error = params->error;
jurica238814 0:f8c1e0b2d473 81
jurica238814 0:f8c1e0b2d473 82 if (error != BLE_ERROR_NONE) {
jurica238814 0:f8c1e0b2d473 83 /* In case of error, forward the error handling to onBleInitError */
jurica238814 0:f8c1e0b2d473 84 onBleInitError(ble, error);
jurica238814 0:f8c1e0b2d473 85 return;
jurica238814 0:f8c1e0b2d473 86 }
jurica238814 0:f8c1e0b2d473 87
jurica238814 0:f8c1e0b2d473 88 /* Ensure that it is the default instance of BLE */
jurica238814 0:f8c1e0b2d473 89 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
jurica238814 0:f8c1e0b2d473 90 return;
jurica238814 0:f8c1e0b2d473 91 }
jurica238814 0:f8c1e0b2d473 92
jurica238814 0:f8c1e0b2d473 93 ble.gap().onDisconnection(disconnectionCallback);
jurica238814 0:f8c1e0b2d473 94
jurica238814 1:5f34885f5cff 95 /* Get my MAC address */
jurica238814 1:5f34885f5cff 96 BLEProtocol::AddressType_t temp_address_type;
jurica238814 1:5f34885f5cff 97 ble.gap().getAddress(&temp_address_type, my_mac_address);
jurica238814 1:5f34885f5cff 98
jurica238814 1:5f34885f5cff 99
jurica238814 0:f8c1e0b2d473 100 /* setup advertising */
jurica238814 0:f8c1e0b2d473 101 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
jurica238814 1:5f34885f5cff 102 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)MSD, MSD_SIZE);
jurica238814 0:f8c1e0b2d473 103 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
jurica238814 2:5504b714c9ae 104 ble.gap().setAdvertisingInterval(100); // --> Has to be at least 100ms!
jurica238814 2:5504b714c9ae 105 ble.gap().startAdvertising();
jurica238814 0:f8c1e0b2d473 106 }
jurica238814 0:f8c1e0b2d473 107
jurica238814 3:2a4ac5b87046 108
jurica238814 3:2a4ac5b87046 109 uint8_t findMSDIndex(const Gap::AdvertisementCallbackParams_t *params){
jurica238814 1:5f34885f5cff 110 uint8_t i=0;
jurica238814 3:2a4ac5b87046 111 uint8_t len;
jurica238814 3:2a4ac5b87046 112
jurica238814 3:2a4ac5b87046 113 do{
jurica238814 3:2a4ac5b87046 114 len = params->advertisingData[i];
jurica238814 3:2a4ac5b87046 115 i++;
jurica238814 3:2a4ac5b87046 116 if(params->advertisingData[i] == MSD_ID) return i;
jurica238814 3:2a4ac5b87046 117 else i += (len-1);
jurica238814 3:2a4ac5b87046 118 }while(i<MAX_BLE_PACKET_SIZE);
jurica238814 3:2a4ac5b87046 119
jurica238814 3:2a4ac5b87046 120 return 0;
jurica238814 3:2a4ac5b87046 121 }
jurica238814 3:2a4ac5b87046 122
jurica238814 3:2a4ac5b87046 123 /**
jurica238814 3:2a4ac5b87046 124 * Function is called when BLE radio discovers any kind of advertisment
jurica238814 3:2a4ac5b87046 125 */
jurica238814 3:2a4ac5b87046 126 void advertisementCallback(const Gap::AdvertisementCallbackParams_t *params){
jurica238814 3:2a4ac5b87046 127 uint8_t i=0;
jurica238814 3:2a4ac5b87046 128 uint8_t msdOffset;
jurica238814 3:2a4ac5b87046 129
jurica238814 3:2a4ac5b87046 130 msdOffset = findMSDIndex(params);
jurica238814 3:2a4ac5b87046 131 if(msdOffset == 0){
jurica238814 3:2a4ac5b87046 132 // There's no MSD in BLE advertisement data
jurica238814 3:2a4ac5b87046 133 return;
jurica238814 3:2a4ac5b87046 134 }
jurica238814 3:2a4ac5b87046 135
jurica238814 3:2a4ac5b87046 136 if ((params->advertisingData[msdOffset]) == MSD_ID){
jurica238814 1:5f34885f5cff 137 // Follows Manufacturer Specific Data
jurica238814 3:2a4ac5b87046 138 if ((params->advertisingData[msdOffset+1]) == 0x59){
jurica238814 3:2a4ac5b87046 139 if ((params->advertisingData[msdOffset+2]) == 0x00){
jurica238814 1:5f34885f5cff 140 for(i=0; i<6; i++){
jurica238814 3:2a4ac5b87046 141 if((params->advertisingData[msdOffset+i+3]) == my_mac_address[5-i]){
jurica238814 1:5f34885f5cff 142 continue;
jurica238814 1:5f34885f5cff 143 }
jurica238814 1:5f34885f5cff 144 else{
jurica238814 1:5f34885f5cff 145 return;
jurica238814 1:5f34885f5cff 146 }
jurica238814 1:5f34885f5cff 147 }
jurica238814 2:5504b714c9ae 148 turnBuzzOffT.detach();
jurica238814 2:5504b714c9ae 149 WakeSleepT.detach();
jurica238814 2:5504b714c9ae 150 buzzer.write(0.5F);
jurica238814 2:5504b714c9ae 151 turnBuzzOffT.attach(turnBuzzOff, BUZZ_TIME);
jurica238814 1:5f34885f5cff 152 }
jurica238814 1:5f34885f5cff 153 }
jurica238814 2:5504b714c9ae 154 }
jurica238814 2:5504b714c9ae 155 }
jurica238814 2:5504b714c9ae 156
jurica238814 2:5504b714c9ae 157 void WakeMeUp(){
jurica238814 2:5504b714c9ae 158 WakeSleepT.detach();
jurica238814 2:5504b714c9ae 159 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 2:5504b714c9ae 160
jurica238814 2:5504b714c9ae 161 ble.gap().startScan(advertisementCallback);
jurica238814 2:5504b714c9ae 162 ble.gap().startAdvertising();
jurica238814 2:5504b714c9ae 163 SLEEP = false;
jurica238814 2:5504b714c9ae 164 }
jurica238814 2:5504b714c9ae 165
jurica238814 2:5504b714c9ae 166 void goToSleep(){
jurica238814 2:5504b714c9ae 167 WakeSleepT.detach();
jurica238814 2:5504b714c9ae 168 WakeSleepT.attach(WakeMeUp, SLEEP_TIME);
jurica238814 2:5504b714c9ae 169
jurica238814 2:5504b714c9ae 170 ble.gap().stopAdvertising();
jurica238814 2:5504b714c9ae 171 ble.gap().stopScan();
jurica238814 2:5504b714c9ae 172 SLEEP = true;
jurica238814 1:5f34885f5cff 173 }
jurica238814 1:5f34885f5cff 174
jurica238814 6:d14e3df498f4 175 void buzz(void){
jurica238814 6:d14e3df498f4 176 buzzer.write(0.5f);
jurica238814 6:d14e3df498f4 177 wait_ms(100);
jurica238814 6:d14e3df498f4 178 buzzer.write(0.0f);
jurica238814 6:d14e3df498f4 179 buzzer_flag = 0;
jurica238814 6:d14e3df498f4 180 }
jurica238814 6:d14e3df498f4 181
jurica238814 6:d14e3df498f4 182 void pulse_handler(void){
jurica238814 6:d14e3df498f4 183 #if DEBUG
jurica238814 6:d14e3df498f4 184 int_led = !int_led;
jurica238814 6:d14e3df498f4 185 #endif
jurica238814 6:d14e3df498f4 186 i2c_power.write(1.0F);
jurica238814 6:d14e3df498f4 187 buzzer_flag = 1;
jurica238814 6:d14e3df498f4 188 }
jurica238814 6:d14e3df498f4 189
jurica238814 0:f8c1e0b2d473 190 int main(void){
jurica238814 2:5504b714c9ae 191 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 0:f8c1e0b2d473 192 ble.init(bleInitComplete);
jurica238814 0:f8c1e0b2d473 193 ble.gap().setTxPower(txPower);
jurica238814 0:f8c1e0b2d473 194 GapAdvertisingData postavke = GapAdvertisingData();
jurica238814 0:f8c1e0b2d473 195
jurica238814 2:5504b714c9ae 196 ble.gap().setScanParams(100, 100);
jurica238814 1:5f34885f5cff 197 ble.gap().startScan(advertisementCallback);
jurica238814 1:5f34885f5cff 198
jurica238814 1:5f34885f5cff 199 buzzer.period(0.001F);
jurica238814 1:5f34885f5cff 200 buzzer.write(0.0F);
jurica238814 6:d14e3df498f4 201 gyro_power.period(0.01F);
jurica238814 6:d14e3df498f4 202 gyro_power.write(1.0F);
jurica238814 6:d14e3df498f4 203 i2c_power.period(0.01F);
jurica238814 6:d14e3df498f4 204 i2c_power.write(1.0F);
jurica238814 6:d14e3df498f4 205 wait_ms(1000);
jurica238814 6:d14e3df498f4 206
jurica238814 6:d14e3df498f4 207 /* Pulse interrupt detection */
jurica238814 6:d14e3df498f4 208 acc.set_register((char)CTRL_REG_4, (char) 0x04); // INT_EN_FF_MT Freefall/motion interrupt enabled
jurica238814 6:d14e3df498f4 209 wait_ms(1);
jurica238814 6:d14e3df498f4 210 acc.set_register((char)FF_MT_CFG, (char) 0b01011000); //ELE, Motion Flag ON, YEFE, X Event Flag Enable
jurica238814 6:d14e3df498f4 211 wait_ms(1);
jurica238814 6:d14e3df498f4 212 acc.set_register((char)CTRL_REG_5, (char) 0x00); // INT_EN_FF_MT interrupt is router t0 INT2
jurica238814 6:d14e3df498f4 213 wait_ms(1);
jurica238814 6:d14e3df498f4 214 acc.set_register((char)FF_COUNT, (char) 0x08); // Set Counter degister value (10ms)
jurica238814 6:d14e3df498f4 215 wait_ms(1);
jurica238814 6:d14e3df498f4 216 acc.set_register((char)FF_MT_THS, (char) 0x90); // Set TH value for motion detection on 1 G (1/0.063) and DBCNTM = 1 (Increments or clears counter)
jurica238814 6:d14e3df498f4 217 wait_ms(1);
jurica238814 6:d14e3df498f4 218
jurica238814 6:d14e3df498f4 219 /* Setup for the interrupt handler */
jurica238814 6:d14e3df498f4 220 gyro_pulse.rise(&pulse_handler);
jurica238814 6:d14e3df498f4 221 acc.set_register((char)CTRL_REG_1, (char) 0x01); // Flow data rate and Active mode
jurica238814 6:d14e3df498f4 222 wait(1);
jurica238814 0:f8c1e0b2d473 223
jurica238814 2:5504b714c9ae 224 __enable_irq();
jurica238814 2:5504b714c9ae 225
jurica238814 0:f8c1e0b2d473 226 /* SpinWait for initialization to complete. This is necessary because the
jurica238814 0:f8c1e0b2d473 227 * BLE object is used in the main loop below. */
jurica238814 3:2a4ac5b87046 228 while (ble.hasInitialized() == false){
jurica238814 3:2a4ac5b87046 229 /* spin loop */
jurica238814 3:2a4ac5b87046 230 }
jurica238814 1:5f34885f5cff 231
jurica238814 1:5f34885f5cff 232 while(true){
jurica238814 3:2a4ac5b87046 233 if(SLEEP) __WFI();
jurica238814 6:d14e3df498f4 234 else if(buzzer_flag) buzz();
jurica238814 3:2a4ac5b87046 235 else ble.waitForEvent();
jurica238814 0:f8c1e0b2d473 236 }
jurica238814 0:f8c1e0b2d473 237 }