Nakatafu ☆ / Mbed 2 deprecated BLE_Lightning_sensor

BLE Lightning sensor for Nordic NRF51822 based module

Dependencies:   AS3935 AS3935_ext BLE_API mbed nRF51822 nrf51_rtc

main.cpp@3:2ea547dab8a8, 2015-08-30 (annotated)

Committer:
takafuminaka
Date:
Sun Aug 30 10:15:31 2015 +0000
Revision:
3:2ea547dab8a8
Parent:
2:e1e638cbf972
Child:
4:8f815f8d804e
?????? UART????????????;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
takafuminaka 0:371bcac81ea2 1 /*
takafuminaka 0:371bcac81ea2 2
takafuminaka 0:371bcac81ea2 3 */
takafuminaka 0:371bcac81ea2 4
takafuminaka 0:371bcac81ea2 5 #include "mbed.h"
takafuminaka 0:371bcac81ea2 6 #include "nrf51_rtc.h"
takafuminaka 0:371bcac81ea2 7 #include "AS3935_ext.h"
takafuminaka 0:371bcac81ea2 8
takafuminaka 3:2ea547dab8a8 9 #define NEED_CONSOLE_OUTPUT 1 // Set this if you need debug messages on the console;
takafuminaka 3:2ea547dab8a8 10 #define NEED_BLE_CONSOLE 1
takafuminaka 1:a4119049dd99 11
takafuminaka 1:a4119049dd99 12 #if NEED_CONSOLE_OUTPUT
takafuminaka 1:a4119049dd99 13 Serial pc(USBTX, USBRX);
takafuminaka 1:a4119049dd99 14 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
takafuminaka 1:a4119049dd99 15 #else
takafuminaka 1:a4119049dd99 16 #define DEBUG(...) /* nothing */
takafuminaka 1:a4119049dd99 17 #endif /* #if NEED_CONSOLE_OUTPUT */
takafuminaka 1:a4119049dd99 18
takafuminaka 3:2ea547dab8a8 19 #if NEED_BLE_CONSOLE
takafuminaka 3:2ea547dab8a8 20 #include "BLE.h"
takafuminaka 3:2ea547dab8a8 21 #include "UARTService.h"
takafuminaka 3:2ea547dab8a8 22 #define BLEC(...) { char __blecstr[32]; sprintf(__blecstr,__VA_ARGS__); if (uart) uart->write(__blecstr, strlen(__blecstr)); }
takafuminaka 3:2ea547dab8a8 23 #else
takafuminaka 3:2ea547dab8a8 24 #define BLEC(...) /* nothing */
takafuminaka 3:2ea547dab8a8 25 #endif /* #if NEED_BLE_CONSOLE */
takafuminaka 1:a4119049dd99 26
takafuminaka 3:2ea547dab8a8 27 #if NEED_BLE_CONSOLE
takafuminaka 3:2ea547dab8a8 28 // Prepare BLE device
takafuminaka 3:2ea547dab8a8 29 const uint8_t DEVICE_NAME[] = "BLE Ligttning Sensor";
takafuminaka 3:2ea547dab8a8 30 #endif // #if NEED_BLE_CONSOLE
takafuminaka 1:a4119049dd99 31
takafuminaka 1:a4119049dd99 32
takafuminaka 1:a4119049dd99 33 // Prepare LED device
takafuminaka 1:a4119049dd99 34 DigitalOut led1(LED1);
takafuminaka 1:a4119049dd99 35 DigitalOut led2(LED2);
takafuminaka 1:a4119049dd99 36
takafuminaka 0:371bcac81ea2 37 AS3935_ext Lightning(I2C_SDA0,I2C_SCL0,0x00,P0_23);
takafuminaka 0:371bcac81ea2 38 InterruptIn IntLightning(P0_23); //IRQ AS3935
takafuminaka 0:371bcac81ea2 39
takafuminaka 0:371bcac81ea2 40 // used for the example only, not required for rtc use
takafuminaka 0:371bcac81ea2 41 DigitalIn button1(BUTTON1); // used to trigger the time report
takafuminaka 0:371bcac81ea2 42 InterruptIn button1Press(BUTTON1);
takafuminaka 0:371bcac81ea2 43
takafuminaka 3:2ea547dab8a8 44 // event record buffer struct
takafuminaka 3:2ea547dab8a8 45 const int s_evrecord=10;
takafuminaka 3:2ea547dab8a8 46 struct t_evrecord {
takafuminaka 3:2ea547dab8a8 47 public:
takafuminaka 3:2ea547dab8a8 48 int event;
takafuminaka 3:2ea547dab8a8 49 time_t time;
takafuminaka 3:2ea547dab8a8 50 int distance;
takafuminaka 3:2ea547dab8a8 51
takafuminaka 3:2ea547dab8a8 52 t_evrecord() {
takafuminaka 3:2ea547dab8a8 53 event = 0;
takafuminaka 3:2ea547dab8a8 54 time = 0;
takafuminaka 3:2ea547dab8a8 55 distance = 0;
takafuminaka 3:2ea547dab8a8 56 }
takafuminaka 3:2ea547dab8a8 57 } evrecord[s_evrecord];
takafuminaka 0:371bcac81ea2 58
takafuminaka 0:371bcac81ea2 59 time_t example_time() {
takafuminaka 0:371bcac81ea2 60 // set an intial time
takafuminaka 0:371bcac81ea2 61 // ...not really necessary for this example, but it beats setting it to 0 or some non-obvious large integer (# of seconds since 1/1/1970)
takafuminaka 0:371bcac81ea2 62 time_t rawtime=0;
takafuminaka 0:371bcac81ea2 63
takafuminaka 0:371bcac81ea2 64 struct tm * init_timeinfo;
takafuminaka 0:371bcac81ea2 65
takafuminaka 0:371bcac81ea2 66 // initialize time
takafuminaka 0:371bcac81ea2 67 init_timeinfo = localtime(&rawtime); // note: must initialize the struct with this before trying to set components
takafuminaka 0:371bcac81ea2 68 // ...else code goes into the weeds!!
takafuminaka 0:371bcac81ea2 69 init_timeinfo->tm_sec = 0;
takafuminaka 0:371bcac81ea2 70 init_timeinfo->tm_min = 0;
takafuminaka 0:371bcac81ea2 71 init_timeinfo->tm_hour = 0;
takafuminaka 0:371bcac81ea2 72 init_timeinfo->tm_mon = 0;
takafuminaka 0:371bcac81ea2 73 init_timeinfo->tm_mday = 1;
takafuminaka 2:e1e638cbf972 74 init_timeinfo->tm_year = 70;
takafuminaka 0:371bcac81ea2 75
takafuminaka 0:371bcac81ea2 76 char date[24];
takafuminaka 0:371bcac81ea2 77 strftime(date,sizeof(date),"%H:%M:%S on %m/%d/%G",init_timeinfo);
takafuminaka 1:a4119049dd99 78 DEBUG("Initial time set is %s.\r\n",date);
takafuminaka 0:371bcac81ea2 79
takafuminaka 0:371bcac81ea2 80 // compute the proper value for time in time_t type
takafuminaka 0:371bcac81ea2 81 rawtime = mktime(init_timeinfo);
takafuminaka 0:371bcac81ea2 82 return rawtime;
takafuminaka 0:371bcac81ea2 83 }
takafuminaka 1:a4119049dd99 84
takafuminaka 0:371bcac81ea2 85 void print_time() {
takafuminaka 0:371bcac81ea2 86 // called when a button is pushed, this prints the current time to the USB-connected console
takafuminaka 0:371bcac81ea2 87
takafuminaka 0:371bcac81ea2 88 time_t rawtime=rtc.time();
takafuminaka 0:371bcac81ea2 89
takafuminaka 0:371bcac81ea2 90 // massage the time into a human-friendly format for printing
takafuminaka 0:371bcac81ea2 91 struct tm * timeinfo;
takafuminaka 0:371bcac81ea2 92 timeinfo = localtime(&rawtime);
takafuminaka 0:371bcac81ea2 93 char date[24];
takafuminaka 0:371bcac81ea2 94 strftime(date,sizeof(date),"%H:%M:%S on %m/%d/%G",timeinfo);
takafuminaka 1:a4119049dd99 95 DEBUG("The current time is %s.(%d)\r\n",date,rawtime);
takafuminaka 0:371bcac81ea2 96 }
takafuminaka 0:371bcac81ea2 97
takafuminaka 1:a4119049dd99 98 void periodic_update() {
takafuminaka 0:371bcac81ea2 99 // for use as interrupt routine, to insure that RTC is updated periodically
takafuminaka 0:371bcac81ea2 100 // ...if rtc is not read before the underlying counter rolls over (typically 512 seconds), the RTC value will be wrong
takafuminaka 0:371bcac81ea2 101 // ...ideally this would be done as part of the nrf51_rtc method, but I couldn't get it to behave (see nrf51_rtc.cpp for details)
takafuminaka 0:371bcac81ea2 102 rtc.time();
takafuminaka 1:a4119049dd99 103 Lightning.lightningDistanceKm();
takafuminaka 1:a4119049dd99 104 led1 = !led1;
takafuminaka 1:a4119049dd99 105
takafuminaka 0:371bcac81ea2 106 // print_time();
takafuminaka 0:371bcac81ea2 107 }
takafuminaka 0:371bcac81ea2 108
takafuminaka 3:2ea547dab8a8 109 #if NEED_BLE_CONSOLE
takafuminaka 3:2ea547dab8a8 110 BLEDevice ble;
takafuminaka 3:2ea547dab8a8 111 UARTService *uart;
takafuminaka 3:2ea547dab8a8 112 static Gap::ConnectionParams_t connectionParams;
takafuminaka 3:2ea547dab8a8 113 int buff_flash_flag;
takafuminaka 3:2ea547dab8a8 114
takafuminaka 3:2ea547dab8a8 115 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) // Mod
takafuminaka 3:2ea547dab8a8 116 {
takafuminaka 3:2ea547dab8a8 117 DEBUG("Disconnected handle %u!\n\r", handle);
takafuminaka 3:2ea547dab8a8 118 DEBUG("Restarting the advertising process\n\r");
takafuminaka 3:2ea547dab8a8 119 led2 = 0;
takafuminaka 3:2ea547dab8a8 120 ble.gap().startAdvertising();
takafuminaka 3:2ea547dab8a8 121
takafuminaka 3:2ea547dab8a8 122
takafuminaka 3:2ea547dab8a8 123 }
takafuminaka 3:2ea547dab8a8 124
takafuminaka 3:2ea547dab8a8 125 void onConnectionCallback(const Gap::ConnectionCallbackParams_t *params)
takafuminaka 3:2ea547dab8a8 126 {
takafuminaka 3:2ea547dab8a8 127 DEBUG("connected. Got handle %u\r\n", params->handle);
takafuminaka 3:2ea547dab8a8 128
takafuminaka 3:2ea547dab8a8 129 connectionParams.slaveLatency = 1;
takafuminaka 3:2ea547dab8a8 130 led2 = 1;
takafuminaka 3:2ea547dab8a8 131 if (ble.gap().updateConnectionParams(params->handle, &connectionParams) != BLE_ERROR_NONE) {
takafuminaka 3:2ea547dab8a8 132 DEBUG("failed to update connection paramter\r\n");
takafuminaka 3:2ea547dab8a8 133 }
takafuminaka 3:2ea547dab8a8 134 buff_flash_flag = 1;
takafuminaka 3:2ea547dab8a8 135
takafuminaka 3:2ea547dab8a8 136 }
takafuminaka 3:2ea547dab8a8 137
takafuminaka 3:2ea547dab8a8 138 void onDataWritten(const GattWriteCallbackParams *params)
takafuminaka 3:2ea547dab8a8 139 {
takafuminaka 3:2ea547dab8a8 140 uint8_t buff[21];
takafuminaka 3:2ea547dab8a8 141 if ((uart != NULL) && (params->handle == uart->getTXCharacteristicHandle())) {
takafuminaka 3:2ea547dab8a8 142 uint16_t bytesRead = params->len;
takafuminaka 3:2ea547dab8a8 143 DEBUG("received %u bytes\n\r", bytesRead);
takafuminaka 3:2ea547dab8a8 144 strncpy((char*)buff,(char*)params->data,bytesRead);
takafuminaka 3:2ea547dab8a8 145 // ble.updateCharacteristicValue(uart->getRXCharacteristicHandle(), params->data, bytesRead);
takafuminaka 3:2ea547dab8a8 146 ble.updateCharacteristicValue(uart->getRXCharacteristicHandle(), buff, bytesRead);
takafuminaka 3:2ea547dab8a8 147 }
takafuminaka 3:2ea547dab8a8 148 }
takafuminaka 3:2ea547dab8a8 149
takafuminaka 3:2ea547dab8a8 150 #endif // if NEED_BLE_CONSOLE
takafuminaka 3:2ea547dab8a8 151
takafuminaka 0:371bcac81ea2 152 void DetectLightning()
takafuminaka 0:371bcac81ea2 153 {
takafuminaka 0:371bcac81ea2 154 char OriginInt;
takafuminaka 0:371bcac81ea2 155 time_t rawtime=rtc.time();
takafuminaka 0:371bcac81ea2 156 struct tm * timeinfo;
takafuminaka 0:371bcac81ea2 157 timeinfo = localtime(&rawtime);
takafuminaka 3:2ea547dab8a8 158 char date[24],sdate[9];
takafuminaka 0:371bcac81ea2 159 int distance;
takafuminaka 0:371bcac81ea2 160
takafuminaka 0:371bcac81ea2 161 strftime(date,sizeof(date),"%H:%M:%S on %m/%d/%G",timeinfo);
takafuminaka 3:2ea547dab8a8 162 strftime(sdate,sizeof(sdate),"%H%M%S",timeinfo);
takafuminaka 0:371bcac81ea2 163
takafuminaka 0:371bcac81ea2 164 wait_ms(2); //on attend 2ms préconisation constructeur
takafuminaka 0:371bcac81ea2 165 OriginInt = Lightning.interruptSource();
takafuminaka 0:371bcac81ea2 166 distance = Lightning.lightningDistanceKm();
takafuminaka 0:371bcac81ea2 167
takafuminaka 1:a4119049dd99 168 if (OriginInt == 1) {
takafuminaka 1:a4119049dd99 169 led2 = !led2;
takafuminaka 1:a4119049dd99 170 DEBUG("%24s : Noise level too high. %d km\r\n",date,distance);
takafuminaka 0:371bcac81ea2 171 }
takafuminaka 0:371bcac81ea2 172 if (OriginInt == 4) {
takafuminaka 1:a4119049dd99 173 led2 = !led2;
takafuminaka 1:a4119049dd99 174 DEBUG("%24s : Disturber detected. %d km\r\n",date,distance);
takafuminaka 0:371bcac81ea2 175 }
takafuminaka 0:371bcac81ea2 176 if (OriginInt == 8) {
takafuminaka 1:a4119049dd99 177 led2 = !led2;
takafuminaka 1:a4119049dd99 178 DEBUG("%24s : Lightning interrupt %d km\r\n",date,distance);
takafuminaka 0:371bcac81ea2 179 }
takafuminaka 0:371bcac81ea2 180 }
takafuminaka 0:371bcac81ea2 181
takafuminaka 0:371bcac81ea2 182
takafuminaka 0:371bcac81ea2 183 int main(void)
takafuminaka 0:371bcac81ea2 184 {
takafuminaka 3:2ea547dab8a8 185 #if NEED_BLE_CONSOLE
takafuminaka 3:2ea547dab8a8 186 ble.init();
takafuminaka 3:2ea547dab8a8 187 ble.gap().onDisconnection(disconnectionCallback);
takafuminaka 3:2ea547dab8a8 188 ble.gap().onConnection(onConnectionCallback);
takafuminaka 3:2ea547dab8a8 189 ble.gattServer().onDataWritten(onDataWritten);
takafuminaka 3:2ea547dab8a8 190 ble.gap().getPreferredConnectionParams(&connectionParams);
takafuminaka 3:2ea547dab8a8 191
takafuminaka 3:2ea547dab8a8 192 uart = new UARTService(ble);
takafuminaka 3:2ea547dab8a8 193 buff_flash_flag = 0;
takafuminaka 3:2ea547dab8a8 194
takafuminaka 3:2ea547dab8a8 195 #endif // if NEED_BLE_CONSOLE
takafuminaka 3:2ea547dab8a8 196
takafuminaka 3:2ea547dab8a8 197
takafuminaka 1:a4119049dd99 198 led1=0;
takafuminaka 1:a4119049dd99 199 led2=0;
takafuminaka 0:371bcac81ea2 200 int hz=0;
takafuminaka 0:371bcac81ea2 201
takafuminaka 0:371bcac81ea2 202 //initialisations
takafuminaka 2:e1e638cbf972 203 wait(1);
takafuminaka 1:a4119049dd99 204 DEBUG("reset\r\n");
takafuminaka 0:371bcac81ea2 205 Lightning.reset();
takafuminaka 1:a4119049dd99 206 DEBUG("setTuneCap as 5\r\n");
takafuminaka 0:371bcac81ea2 207 Lightning.setTuneCap(5); // Tuning Parameter
takafuminaka 1:a4119049dd99 208 DEBUG("powerup\r\n");
takafuminaka 0:371bcac81ea2 209 Lightning.powerUp();
takafuminaka 2:e1e638cbf972 210
takafuminaka 2:e1e638cbf972 211 DEBUG("set Indoor Mode as 0x0d\r\n");
takafuminaka 2:e1e638cbf972 212 Lightning.registerWrite(AS3935_AFE_GB,0x0d);
takafuminaka 2:e1e638cbf972 213
takafuminaka 1:a4119049dd99 214 DEBUG("Auto Calibration Start\r\n");
takafuminaka 0:371bcac81ea2 215 float minerr = 100;
takafuminaka 0:371bcac81ea2 216 int fincap = 7;
takafuminaka 0:371bcac81ea2 217 for(int i=0;i<16;i++) {
takafuminaka 0:371bcac81ea2 218 Lightning.setTuneCap(i); // Tuning Parameter
takafuminaka 0:371bcac81ea2 219 hz = Lightning.MeasureLCOFreq();
takafuminaka 0:371bcac81ea2 220 float err = (hz-500000.)/500000.*100.;
takafuminaka 1:a4119049dd99 221 DEBUG("%d : hz=%10d Hz (%5.2f%%)\r\n",i,hz,err);
takafuminaka 0:371bcac81ea2 222 if ( abs(err) < minerr ) {
takafuminaka 0:371bcac81ea2 223 minerr = abs(err);
takafuminaka 0:371bcac81ea2 224 fincap = i;
takafuminaka 0:371bcac81ea2 225 }
takafuminaka 0:371bcac81ea2 226 }
takafuminaka 0:371bcac81ea2 227 Lightning.setTuneCap(fincap); // Tuning Parameter
takafuminaka 0:371bcac81ea2 228 wait_ms(100);
takafuminaka 0:371bcac81ea2 229 hz = Lightning.MeasureLCOFreq();
takafuminaka 0:371bcac81ea2 230 float err = (hz-500000.)/500000.*100.;
takafuminaka 1:a4119049dd99 231 DEBUG("Final %d : hz=%10d Hz (%5.2f%%)\r\n",fincap,hz,err);
takafuminaka 3:2ea547dab8a8 232 BLEC("%1x:%10dHz:%5.2f:final\n",fincap,hz,err);
takafuminaka 0:371bcac81ea2 233
takafuminaka 1:a4119049dd99 234 DEBUG("Auto Calibration finished\r\n");
takafuminaka 0:371bcac81ea2 235
takafuminaka 0:371bcac81ea2 236 // user selectable, any time < 512 seconds is OK
takafuminaka 0:371bcac81ea2 237 #define PERIODIC_UPDATE 1
takafuminaka 0:371bcac81ea2 238 Ticker rtc_ticker;
takafuminaka 1:a4119049dd99 239 rtc_ticker.attach(&periodic_update, PERIODIC_UPDATE);
takafuminaka 0:371bcac81ea2 240
takafuminaka 0:371bcac81ea2 241 time_t initial_time = example_time();
takafuminaka 0:371bcac81ea2 242 rtc.set_time(initial_time);
takafuminaka 0:371bcac81ea2 243
takafuminaka 0:371bcac81ea2 244 button1Press.fall(&print_time); // when button1 is pressed, this calls rtc.time() and prints it
takafuminaka 0:371bcac81ea2 245
takafuminaka 0:371bcac81ea2 246 IntLightning.rise(&DetectLightning);
takafuminaka 0:371bcac81ea2 247
takafuminaka 3:2ea547dab8a8 248 #if NEED_BLE_CONSOLE
takafuminaka 1:a4119049dd99 249 /* setup advertising */
takafuminaka 3:2ea547dab8a8 250 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
takafuminaka 3:2ea547dab8a8 251 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
takafuminaka 3:2ea547dab8a8 252 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
takafuminaka 3:2ea547dab8a8 253 DEVICE_NAME, sizeof(DEVICE_NAME) - 1);
takafuminaka 3:2ea547dab8a8 254 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
takafuminaka 3:2ea547dab8a8 255 (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
takafuminaka 1:a4119049dd99 256
takafuminaka 1:a4119049dd99 257 ble.gap().setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
takafuminaka 1:a4119049dd99 258 ble.gap().startAdvertising();
takafuminaka 3:2ea547dab8a8 259 #endif // #if NEED_BLE_CONSOLE
takafuminaka 1:a4119049dd99 260
takafuminaka 0:371bcac81ea2 261 while (true) {
takafuminaka 3:2ea547dab8a8 262 if ( buff_flash_flag != 0) {
takafuminaka 3:2ea547dab8a8 263 wait_ms(4000);
takafuminaka 3:2ea547dab8a8 264 BLEC("test1\n");
takafuminaka 3:2ea547dab8a8 265 wait_ms(300);
takafuminaka 3:2ea547dab8a8 266 time_t rawtime=rtc.time();
takafuminaka 3:2ea547dab8a8 267 BLEC("%4x:current time\n",rawtime);
takafuminaka 3:2ea547dab8a8 268
takafuminaka 3:2ea547dab8a8 269 for(int i=0;i<s_evrecord;i++) {
takafuminaka 3:2ea547dab8a8 270 BLEC("%1d:%4x:%1x:%2x\n",i,evrecord[i].time,evrecord[i].event,evrecord[i].distance);
takafuminaka 3:2ea547dab8a8 271 wait_ms(300);
takafuminaka 3:2ea547dab8a8 272 }
takafuminaka 3:2ea547dab8a8 273 BLEC("finished\n");
takafuminaka 1:a4119049dd99 274
takafuminaka 3:2ea547dab8a8 275 buff_flash_flag = 0;
takafuminaka 1:a4119049dd99 276
takafuminaka 1:a4119049dd99 277 } else {
takafuminaka 3:2ea547dab8a8 278 BLEC("pong\n");
takafuminaka 3:2ea547dab8a8 279 wait(5);
takafuminaka 1:a4119049dd99 280 }
takafuminaka 0:371bcac81ea2 281 }
takafuminaka 0:371bcac81ea2 282 }
takafuminaka 1:a4119049dd99 283