Jurica Resetar / Mbed OS acd52832_BLE_VF_GeoBeacon

Geo beacon for VF.

Dependencies:   MMA8452 aconno_bsp adc52832_common

main.cpp@8:570eb66d50b5, 2017-07-20 (annotated)

Committer:
jurica238814
Date:
Thu Jul 20 11:15:37 2017 +0000
Revision:
8:570eb66d50b5
Parent:
6:d14e3df498f4
Child:
9:2ab2be19add9
Acc included. Works. Potentional problem: stops working after 10min (ble problem or something else... seen that on other ble examples).

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 8:570eb66d50b5 15 #define DEBUG 1
jurica238814 8:570eb66d50b5 16
jurica238814 3:2a4ac5b87046 17 #define SLEEP_TIME (0.85) // Sleep time in seconds WAS 0.85
jurica238814 8:570eb66d50b5 18 #define AWAKE_TIME (2.15) // Was 0.15
jurica238814 1:5f34885f5cff 19 #define BUZZER (p31)
jurica238814 0:f8c1e0b2d473 20
jurica238814 1:5f34885f5cff 21 /* Static constants for the BLE example */
jurica238814 3:2a4ac5b87046 22 #define MAX_BLE_PACKET_SIZE (31)
jurica238814 3:2a4ac5b87046 23 #define MSD_SIZE (18)
jurica238814 3:2a4ac5b87046 24 #define MSD_ID (0xFF)
jurica238814 3:2a4ac5b87046 25 #define BUZZ_TIME (1.0) // Buzz time in s
jurica238814 1:5f34885f5cff 26
jurica238814 6:d14e3df498f4 27 /* Static constants for the accelerometer */
jurica238814 6:d14e3df498f4 28 #define WHO_AM_I 0x0D // Type 'read' : This should return the device id of 0x2A
jurica238814 6:d14e3df498f4 29 #define OUT_Z_MSB 0x05 // Type 'read' : z axis - 8 most significatn bit of a 12 bit sample
jurica238814 6:d14e3df498f4 30 #define I2C_DATA (p29)
jurica238814 6:d14e3df498f4 31 #define I2C_CLK (p2)
jurica238814 6:d14e3df498f4 32 #define INT2_PIN (p4)
jurica238814 0:f8c1e0b2d473 33
jurica238814 8:570eb66d50b5 34 uint8_t sleepFlag = 1;
jurica238814 0:f8c1e0b2d473 35 int8_t txPower = 4;
jurica238814 1:5f34885f5cff 36 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 37 uint8_t my_mac_address[6] = {};
jurica238814 6:d14e3df498f4 38 uint8_t buzzer_flag = 0;
jurica238814 0:f8c1e0b2d473 39
jurica238814 2:5504b714c9ae 40 void turnBuzzOff(void);
jurica238814 2:5504b714c9ae 41 void goToSleep();
jurica238814 0:f8c1e0b2d473 42
jurica238814 2:5504b714c9ae 43 Ticker WakeSleepT;
jurica238814 2:5504b714c9ae 44 Ticker turnBuzzOffT;
jurica238814 1:5f34885f5cff 45 PwmOut buzzer(BUZZER);
jurica238814 6:d14e3df498f4 46 PwmOut gyro_power(p7);
jurica238814 6:d14e3df498f4 47 PwmOut i2c_power(p5); // I2C Pull-ups power pin
jurica238814 6:d14e3df498f4 48 InterruptIn gyro_pulse(INT2_PIN);
jurica238814 6:d14e3df498f4 49 Acc_MMA8452 acc(I2C_DATA, I2C_CLK, MMA8452_ADDRESS);
jurica238814 1:5f34885f5cff 50 BLE &ble = BLE::Instance();
jurica238814 2:5504b714c9ae 51
jurica238814 8:570eb66d50b5 52 #if DEBUG
jurica238814 8:570eb66d50b5 53 DigitalOut int_led(p22);
jurica238814 8:570eb66d50b5 54 #endif
jurica238814 8:570eb66d50b5 55
jurica238814 0:f8c1e0b2d473 56 /* Restart Advertising on disconnection*/
jurica238814 0:f8c1e0b2d473 57 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params){
jurica238814 0:f8c1e0b2d473 58 BLE::Instance().gap().startAdvertising();
jurica238814 0:f8c1e0b2d473 59 }
jurica238814 0:f8c1e0b2d473 60
jurica238814 3:2a4ac5b87046 61 /**
jurica238814 3:2a4ac5b87046 62 * The function is called when ticker generates interrupt
jurica238814 3:2a4ac5b87046 63 */
jurica238814 2:5504b714c9ae 64 void turnBuzzOff(void){
jurica238814 2:5504b714c9ae 65 buzzer.write(0.0F);
jurica238814 2:5504b714c9ae 66 turnBuzzOffT.detach();
jurica238814 2:5504b714c9ae 67 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 1:5f34885f5cff 68 }
jurica238814 0:f8c1e0b2d473 69
jurica238814 0:f8c1e0b2d473 70 /**
jurica238814 0:f8c1e0b2d473 71 * This function is called when the ble initialization process has failed
jurica238814 0:f8c1e0b2d473 72 */
jurica238814 0:f8c1e0b2d473 73 void onBleInitError(BLE &ble, ble_error_t error){
jurica238814 0:f8c1e0b2d473 74 /* Avoid compiler warnings */
jurica238814 0:f8c1e0b2d473 75 (void) ble;
jurica238814 0:f8c1e0b2d473 76 (void) error;
jurica238814 0:f8c1e0b2d473 77 /* Initialization error handling should go here */
jurica238814 0:f8c1e0b2d473 78 }
jurica238814 0:f8c1e0b2d473 79
jurica238814 0:f8c1e0b2d473 80 /**
jurica238814 0:f8c1e0b2d473 81 * Callback triggered when the ble initialization process has finished
jurica238814 0:f8c1e0b2d473 82 */
jurica238814 0:f8c1e0b2d473 83 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params){
jurica238814 0:f8c1e0b2d473 84 BLE& ble = params->ble;
jurica238814 0:f8c1e0b2d473 85 ble_error_t error = params->error;
jurica238814 0:f8c1e0b2d473 86
jurica238814 0:f8c1e0b2d473 87 if (error != BLE_ERROR_NONE) {
jurica238814 0:f8c1e0b2d473 88 /* In case of error, forward the error handling to onBleInitError */
jurica238814 0:f8c1e0b2d473 89 onBleInitError(ble, error);
jurica238814 0:f8c1e0b2d473 90 return;
jurica238814 0:f8c1e0b2d473 91 }
jurica238814 0:f8c1e0b2d473 92
jurica238814 0:f8c1e0b2d473 93 /* Ensure that it is the default instance of BLE */
jurica238814 0:f8c1e0b2d473 94 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
jurica238814 0:f8c1e0b2d473 95 return;
jurica238814 0:f8c1e0b2d473 96 }
jurica238814 0:f8c1e0b2d473 97
jurica238814 0:f8c1e0b2d473 98 ble.gap().onDisconnection(disconnectionCallback);
jurica238814 0:f8c1e0b2d473 99
jurica238814 1:5f34885f5cff 100 /* Get my MAC address */
jurica238814 1:5f34885f5cff 101 BLEProtocol::AddressType_t temp_address_type;
jurica238814 1:5f34885f5cff 102 ble.gap().getAddress(&temp_address_type, my_mac_address);
jurica238814 1:5f34885f5cff 103
jurica238814 1:5f34885f5cff 104
jurica238814 0:f8c1e0b2d473 105 /* setup advertising */
jurica238814 0:f8c1e0b2d473 106 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
jurica238814 1:5f34885f5cff 107 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)MSD, MSD_SIZE);
jurica238814 0:f8c1e0b2d473 108 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
jurica238814 2:5504b714c9ae 109 ble.gap().setAdvertisingInterval(100); // --> Has to be at least 100ms!
jurica238814 2:5504b714c9ae 110 ble.gap().startAdvertising();
jurica238814 0:f8c1e0b2d473 111 }
jurica238814 0:f8c1e0b2d473 112
jurica238814 3:2a4ac5b87046 113
jurica238814 3:2a4ac5b87046 114 uint8_t findMSDIndex(const Gap::AdvertisementCallbackParams_t *params){
jurica238814 1:5f34885f5cff 115 uint8_t i=0;
jurica238814 3:2a4ac5b87046 116 uint8_t len;
jurica238814 3:2a4ac5b87046 117
jurica238814 3:2a4ac5b87046 118 do{
jurica238814 3:2a4ac5b87046 119 len = params->advertisingData[i];
jurica238814 3:2a4ac5b87046 120 i++;
jurica238814 3:2a4ac5b87046 121 if(params->advertisingData[i] == MSD_ID) return i;
jurica238814 3:2a4ac5b87046 122 else i += (len-1);
jurica238814 3:2a4ac5b87046 123 }while(i<MAX_BLE_PACKET_SIZE);
jurica238814 3:2a4ac5b87046 124
jurica238814 3:2a4ac5b87046 125 return 0;
jurica238814 3:2a4ac5b87046 126 }
jurica238814 3:2a4ac5b87046 127
jurica238814 3:2a4ac5b87046 128 /**
jurica238814 3:2a4ac5b87046 129 * Function is called when BLE radio discovers any kind of advertisment
jurica238814 3:2a4ac5b87046 130 */
jurica238814 3:2a4ac5b87046 131 void advertisementCallback(const Gap::AdvertisementCallbackParams_t *params){
jurica238814 3:2a4ac5b87046 132 uint8_t i=0;
jurica238814 3:2a4ac5b87046 133 uint8_t msdOffset;
jurica238814 3:2a4ac5b87046 134
jurica238814 3:2a4ac5b87046 135 msdOffset = findMSDIndex(params);
jurica238814 3:2a4ac5b87046 136 if(msdOffset == 0){
jurica238814 3:2a4ac5b87046 137 // There's no MSD in BLE advertisement data
jurica238814 3:2a4ac5b87046 138 return;
jurica238814 3:2a4ac5b87046 139 }
jurica238814 3:2a4ac5b87046 140
jurica238814 3:2a4ac5b87046 141 if ((params->advertisingData[msdOffset]) == MSD_ID){
jurica238814 1:5f34885f5cff 142 // Follows Manufacturer Specific Data
jurica238814 3:2a4ac5b87046 143 if ((params->advertisingData[msdOffset+1]) == 0x59){
jurica238814 3:2a4ac5b87046 144 if ((params->advertisingData[msdOffset+2]) == 0x00){
jurica238814 1:5f34885f5cff 145 for(i=0; i<6; i++){
jurica238814 3:2a4ac5b87046 146 if((params->advertisingData[msdOffset+i+3]) == my_mac_address[5-i]){
jurica238814 1:5f34885f5cff 147 continue;
jurica238814 1:5f34885f5cff 148 }
jurica238814 1:5f34885f5cff 149 else{
jurica238814 1:5f34885f5cff 150 return;
jurica238814 1:5f34885f5cff 151 }
jurica238814 1:5f34885f5cff 152 }
jurica238814 2:5504b714c9ae 153 turnBuzzOffT.detach();
jurica238814 2:5504b714c9ae 154 WakeSleepT.detach();
jurica238814 2:5504b714c9ae 155 buzzer.write(0.5F);
jurica238814 2:5504b714c9ae 156 turnBuzzOffT.attach(turnBuzzOff, BUZZ_TIME);
jurica238814 1:5f34885f5cff 157 }
jurica238814 1:5f34885f5cff 158 }
jurica238814 2:5504b714c9ae 159 }
jurica238814 2:5504b714c9ae 160 }
jurica238814 2:5504b714c9ae 161
jurica238814 2:5504b714c9ae 162 void WakeMeUp(){
jurica238814 2:5504b714c9ae 163 WakeSleepT.detach();
jurica238814 2:5504b714c9ae 164 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 2:5504b714c9ae 165
jurica238814 2:5504b714c9ae 166 ble.gap().startScan(advertisementCallback);
jurica238814 2:5504b714c9ae 167 ble.gap().startAdvertising();
jurica238814 8:570eb66d50b5 168 sleepFlag = 0;
jurica238814 2:5504b714c9ae 169 }
jurica238814 2:5504b714c9ae 170
jurica238814 2:5504b714c9ae 171 void goToSleep(){
jurica238814 2:5504b714c9ae 172 WakeSleepT.detach();
jurica238814 2:5504b714c9ae 173 WakeSleepT.attach(WakeMeUp, SLEEP_TIME);
jurica238814 2:5504b714c9ae 174
jurica238814 2:5504b714c9ae 175 ble.gap().stopAdvertising();
jurica238814 2:5504b714c9ae 176 ble.gap().stopScan();
jurica238814 8:570eb66d50b5 177 sleepFlag = 1;
jurica238814 1:5f34885f5cff 178 }
jurica238814 1:5f34885f5cff 179
jurica238814 6:d14e3df498f4 180 void buzz(void){
jurica238814 6:d14e3df498f4 181 buzzer.write(0.5f);
jurica238814 6:d14e3df498f4 182 wait_ms(100);
jurica238814 6:d14e3df498f4 183 buzzer.write(0.0f);
jurica238814 6:d14e3df498f4 184 buzzer_flag = 0;
jurica238814 6:d14e3df498f4 185 }
jurica238814 6:d14e3df498f4 186
jurica238814 6:d14e3df498f4 187 void pulse_handler(void){
jurica238814 6:d14e3df498f4 188 #if DEBUG
jurica238814 6:d14e3df498f4 189 int_led = !int_led;
jurica238814 6:d14e3df498f4 190 #endif
jurica238814 6:d14e3df498f4 191 i2c_power.write(1.0F);
jurica238814 6:d14e3df498f4 192 buzzer_flag = 1;
jurica238814 8:570eb66d50b5 193 // Be awake some time
jurica238814 8:570eb66d50b5 194 WakeSleepT.detach();
jurica238814 8:570eb66d50b5 195 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 6:d14e3df498f4 196 }
jurica238814 6:d14e3df498f4 197
jurica238814 0:f8c1e0b2d473 198 int main(void){
jurica238814 2:5504b714c9ae 199 WakeSleepT.attach(goToSleep, AWAKE_TIME);
jurica238814 0:f8c1e0b2d473 200 ble.init(bleInitComplete);
jurica238814 0:f8c1e0b2d473 201 ble.gap().setTxPower(txPower);
jurica238814 0:f8c1e0b2d473 202 GapAdvertisingData postavke = GapAdvertisingData();
jurica238814 0:f8c1e0b2d473 203
jurica238814 2:5504b714c9ae 204 ble.gap().setScanParams(100, 100);
jurica238814 1:5f34885f5cff 205 ble.gap().startScan(advertisementCallback);
jurica238814 1:5f34885f5cff 206
jurica238814 1:5f34885f5cff 207 buzzer.period(0.001F);
jurica238814 1:5f34885f5cff 208 buzzer.write(0.0F);
jurica238814 6:d14e3df498f4 209 gyro_power.period(0.01F);
jurica238814 6:d14e3df498f4 210 gyro_power.write(1.0F);
jurica238814 6:d14e3df498f4 211 i2c_power.period(0.01F);
jurica238814 6:d14e3df498f4 212 i2c_power.write(1.0F);
jurica238814 6:d14e3df498f4 213 wait_ms(1000);
jurica238814 6:d14e3df498f4 214
jurica238814 6:d14e3df498f4 215 /* Pulse interrupt detection */
jurica238814 6:d14e3df498f4 216 acc.set_register((char)CTRL_REG_4, (char) 0x04); // INT_EN_FF_MT Freefall/motion interrupt enabled
jurica238814 6:d14e3df498f4 217 wait_ms(1);
jurica238814 6:d14e3df498f4 218 acc.set_register((char)FF_MT_CFG, (char) 0b01011000); //ELE, Motion Flag ON, YEFE, X Event Flag Enable
jurica238814 6:d14e3df498f4 219 wait_ms(1);
jurica238814 6:d14e3df498f4 220 acc.set_register((char)CTRL_REG_5, (char) 0x00); // INT_EN_FF_MT interrupt is router t0 INT2
jurica238814 6:d14e3df498f4 221 wait_ms(1);
jurica238814 6:d14e3df498f4 222 acc.set_register((char)FF_COUNT, (char) 0x08); // Set Counter degister value (10ms)
jurica238814 6:d14e3df498f4 223 wait_ms(1);
jurica238814 6:d14e3df498f4 224 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 225 wait_ms(1);
jurica238814 6:d14e3df498f4 226
jurica238814 6:d14e3df498f4 227 /* Setup for the interrupt handler */
jurica238814 6:d14e3df498f4 228 gyro_pulse.rise(&pulse_handler);
jurica238814 6:d14e3df498f4 229 acc.set_register((char)CTRL_REG_1, (char) 0x01); // Flow data rate and Active mode
jurica238814 6:d14e3df498f4 230 wait(1);
jurica238814 0:f8c1e0b2d473 231
jurica238814 2:5504b714c9ae 232 __enable_irq();
jurica238814 2:5504b714c9ae 233
jurica238814 0:f8c1e0b2d473 234 /* SpinWait for initialization to complete. This is necessary because the
jurica238814 0:f8c1e0b2d473 235 * BLE object is used in the main loop below. */
jurica238814 3:2a4ac5b87046 236 while (ble.hasInitialized() == false){
jurica238814 3:2a4ac5b87046 237 /* spin loop */
jurica238814 3:2a4ac5b87046 238 }
jurica238814 1:5f34885f5cff 239
jurica238814 1:5f34885f5cff 240 while(true){
jurica238814 8:570eb66d50b5 241 if(sleepFlag) __WFI();
jurica238814 3:2a4ac5b87046 242 else ble.waitForEvent();
jurica238814 0:f8c1e0b2d473 243 }
jurica238814 0:f8c1e0b2d473 244 }