Alexander Lea / Mbed 2 deprecated BLE_CarPeripheral

Dissertation project, looking at BLE communication in cars. This project is BLE peripheral acting as car indicator stalk

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_GATT_test1 by Alexander Lea

main.cpp@1:ebdf445c4bcc, 2015-01-18 (annotated)

Committer:
alexanderlea
Date:
Sun Jan 18 15:46:43 2015 +0000
Revision:
1:ebdf445c4bcc
Parent:
0:af868ad47854
Child:
2:f538ff758828
Renamed variable from level to command

Who changed what in which revision?

UserRevisionLine numberNew contents of line
alexanderlea 0:af868ad47854 1 /*
alexanderlea 0:af868ad47854 2 * TODO:
alexanderlea 0:af868ad47854 3 * - Make it work!
alexanderlea 0:af868ad47854 4 */
alexanderlea 0:af868ad47854 5
alexanderlea 0:af868ad47854 6 #include "mbed.h"
alexanderlea 0:af868ad47854 7 #include "BLEDevice.h"
alexanderlea 0:af868ad47854 8 #include "CarCommsService.h"
alexanderlea 0:af868ad47854 9 #include "TestGattService.h"
alexanderlea 0:af868ad47854 10 #include <string>
alexanderlea 0:af868ad47854 11
alexanderlea 0:af868ad47854 12 using namespace std;
alexanderlea 0:af868ad47854 13
alexanderlea 0:af868ad47854 14 BLEDevice ble;
alexanderlea 0:af868ad47854 15 DigitalOut led1(LED1);
alexanderlea 0:af868ad47854 16 Serial pc(USBTX, USBRX);
alexanderlea 0:af868ad47854 17
alexanderlea 0:af868ad47854 18 /*Variable Declarations*/
alexanderlea 1:ebdf445c4bcc 19 const static char DEVICE_NAME[] = "BLE_NODE";
alexanderlea 0:af868ad47854 20
alexanderlea 0:af868ad47854 21 ///*
alexanderlea 0:af868ad47854 22 //* Define a custom UUID, first as an array of uint8_t and then convert to
alexanderlea 0:af868ad47854 23 //* a proper UUID later. The UUID must be 16 bytes (128-bits, 16 letters)
alexanderlea 0:af868ad47854 24 //* long - here we have padded out to 16 bytes by adding an extra '0' at
alexanderlea 0:af868ad47854 25 //* the end. Make sure you fill more than 4 bytes otherwise it will count
alexanderlea 0:af868ad47854 26 //* as a 'short' code and you could end up using a predefined value from
alexanderlea 0:af868ad47854 27 //* the BLE spec.
alexanderlea 0:af868ad47854 28 //*/
alexanderlea 0:af868ad47854 29 //uint8_t raw_characteristic_uuid[16] = {
alexanderlea 0:af868ad47854 30 // 'M', 'Y', '_', 'T',
alexanderlea 0:af868ad47854 31 // 'E', 'S', 'T', '_',
alexanderlea 0:af868ad47854 32 // 'C', 'H', 'A', 'R',
alexanderlea 0:af868ad47854 33 // 0, 0, 0, 0
alexanderlea 0:af868ad47854 34 //};
alexanderlea 0:af868ad47854 35 //
alexanderlea 0:af868ad47854 36 //// Create a proper UUID
alexanderlea 0:af868ad47854 37 //UUID characteristic_uuid = {0x4d,0x32,0x81,0xc0,0x86,0xd1,0x11,0xe4,0xb0,0x84,0x00,0x02,0xa5,0xd5,0xc5,0x10};
alexanderlea 0:af868ad47854 38
alexanderlea 0:af868ad47854 39 static volatile bool connected;
alexanderlea 0:af868ad47854 40 //Ticker ticker;
alexanderlea 0:af868ad47854 41 //
alexanderlea 0:af868ad47854 42 //
alexanderlea 0:af868ad47854 43 //// Setup some dummy properties for our characteristic
alexanderlea 0:af868ad47854 44 //static uint8_t my_char_values[2] = { 15, 10 };
alexanderlea 0:af868ad47854 45 //
alexanderlea 0:af868ad47854 46 ///*
alexanderlea 0:af868ad47854 47 //* Here we create our Characteristic adding in the dummy parameter values
alexanderlea 0:af868ad47854 48 //* we just setup, we also make it readable and writeable meaning that a
alexanderlea 0:af868ad47854 49 //* central can read and update the parameters we have stored.
alexanderlea 0:af868ad47854 50 //*/
alexanderlea 0:af868ad47854 51 //GattCharacteristic pattern(
alexanderlea 0:af868ad47854 52 // characteristic_uuid,
alexanderlea 0:af868ad47854 53 // my_char_values,
alexanderlea 0:af868ad47854 54 // sizeof(my_char_values),
alexanderlea 0:af868ad47854 55 // sizeof(my_char_values),
alexanderlea 0:af868ad47854 56 // GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE
alexanderlea 0:af868ad47854 57 //);
alexanderlea 0:af868ad47854 58 //
alexanderlea 0:af868ad47854 59 ///*
alexanderlea 0:af868ad47854 60 //* List the Characteristics of our custom Service, can have one or more
alexanderlea 0:af868ad47854 61 //* of these each with a custom UUID and parameter values.
alexanderlea 0:af868ad47854 62 //*/
alexanderlea 0:af868ad47854 63 //GattCharacteristic *my_service_chars[] = {
alexanderlea 0:af868ad47854 64 // &new_alert,
alexanderlea 0:af868ad47854 65 //};
alexanderlea 0:af868ad47854 66 //
alexanderlea 0:af868ad47854 67 // Now setup a custom Service UUID, in the same fashion as for the Characteristic
alexanderlea 0:af868ad47854 68 //uint8_t raw_service_uuid[16] = {
alexanderlea 0:af868ad47854 69 // 'M', 'Y', '_', 'T',
alexanderlea 0:af868ad47854 70 // 'E', 'S', 'T', '_',
alexanderlea 0:af868ad47854 71 // 'S', 'E', 'R', 'V',
alexanderlea 0:af868ad47854 72 // 'I', 'C', 'E', 0
alexanderlea 0:af868ad47854 73 //};
alexanderlea 0:af868ad47854 74
alexanderlea 0:af868ad47854 75
alexanderlea 0:af868ad47854 76
alexanderlea 0:af868ad47854 77 //
alexanderlea 0:af868ad47854 78 //UUID service_uuid = UUID(raw_service_uuid);
alexanderlea 0:af868ad47854 79 //// Setup the Service with the UUID and all of the Characteristics
alexanderlea 0:af868ad47854 80 //GattService my_service(
alexanderlea 0:af868ad47854 81 // service_uuid,
alexanderlea 0:af868ad47854 82 // my_service_chars,
alexanderlea 0:af868ad47854 83 // sizeof(my_service_chars) / sizeof(GattCharacteristic *)
alexanderlea 0:af868ad47854 84 //);
alexanderlea 0:af868ad47854 85 //
alexanderlea 0:af868ad47854 86 ///*
alexanderlea 0:af868ad47854 87 //* Now list the long UUIDs of the services we offer, these will be bundled into the
alexanderlea 0:af868ad47854 88 //* advertisement. It may look like repetition of 'raw_service_uuid' but here you can
alexanderlea 0:af868ad47854 89 //* list multiple UUIDs one after another.
alexanderlea 0:af868ad47854 90 //*/
alexanderlea 0:af868ad47854 91 //static const uint8_t uuid128_list[] = {
alexanderlea 0:af868ad47854 92 // 'M', 'Y', '_', 'T', 'E', 'S', 'T', '_', 'S', 'E', 'R', 'V', 'I', 'C', 'E', 0
alexanderlea 0:af868ad47854 93 // // List more long UUIDs below...
alexanderlea 0:af868ad47854 94 //};
alexanderlea 0:af868ad47854 95
alexanderlea 0:af868ad47854 96 void blink(void)
alexanderlea 0:af868ad47854 97 {
alexanderlea 0:af868ad47854 98 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
alexanderlea 0:af868ad47854 99 }
alexanderlea 0:af868ad47854 100
alexanderlea 0:af868ad47854 101 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
alexanderlea 0:af868ad47854 102 {
alexanderlea 0:af868ad47854 103 pc.printf("Disconnected! - start advertising. Handle:%d, Reason:0x%02x\r\n", handle, reason);
alexanderlea 0:af868ad47854 104 connected=false;
alexanderlea 0:af868ad47854 105 ble.startAdvertising();
alexanderlea 0:af868ad47854 106 }
alexanderlea 0:af868ad47854 107
alexanderlea 0:af868ad47854 108
alexanderlea 0:af868ad47854 109 //Handle_t, addr_type_t peerAddrType, const address_t peerAddr, const ConnectionParams_t *
alexanderlea 0:af868ad47854 110 void connectionCallback(Gap::Handle_t handle, Gap::addr_type_t peerAddrType, const Gap::address_t peerAddr, const Gap::ConnectionParams_t *parms)
alexanderlea 0:af868ad47854 111 {
alexanderlea 0:af868ad47854 112 pc.printf("Connected! - stop advertising. Handle:%d, eType:%d, Add:%u.\r\n", handle, peerAddrType, peerAddr);
alexanderlea 0:af868ad47854 113
alexanderlea 0:af868ad47854 114 connected = true;
alexanderlea 0:af868ad47854 115 // ble.stopAdvertising();
alexanderlea 0:af868ad47854 116 }
alexanderlea 0:af868ad47854 117
alexanderlea 0:af868ad47854 118 int main(void)
alexanderlea 0:af868ad47854 119 {
alexanderlea 0:af868ad47854 120 uint8_t testLevel = 50;
alexanderlea 0:af868ad47854 121
alexanderlea 0:af868ad47854 122 //blinky
alexanderlea 0:af868ad47854 123 led1 = 1;
alexanderlea 0:af868ad47854 124 Ticker t;
alexanderlea 0:af868ad47854 125 t.attach(blink, 1.0f);
alexanderlea 0:af868ad47854 126
alexanderlea 0:af868ad47854 127 //Create BLE stuff
alexanderlea 0:af868ad47854 128 ble.init();
alexanderlea 0:af868ad47854 129 ble.onDisconnection(disconnectionCallback);
alexanderlea 0:af868ad47854 130 ble.onConnection(connectionCallback);
alexanderlea 0:af868ad47854 131
alexanderlea 0:af868ad47854 132 //CarCommsService commsService(ble, cmd);
alexanderlea 0:af868ad47854 133 TestGattService testService(ble, testLevel);
alexanderlea 0:af868ad47854 134
alexanderlea 0:af868ad47854 135
alexanderlea 0:af868ad47854 136 /*
alexanderlea 0:af868ad47854 137 **BREDR_NOT_SUPPORTED = BLE only
alexanderlea 0:af868ad47854 138 **LE_GENERAL_DISCOVERABLE = Device is discoverable at any moment (no time out)
alexanderlea 0:af868ad47854 139 **ADV_CONNECTABLE_UNDIRECTED = Any central device can connect
alexanderlea 0:af868ad47854 140 */
alexanderlea 0:af868ad47854 141 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
alexanderlea 0:af868ad47854 142 // ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
alexanderlea 0:af868ad47854 143 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
alexanderlea 0:af868ad47854 144 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
alexanderlea 0:af868ad47854 145
alexanderlea 0:af868ad47854 146 //Advertise
alexanderlea 0:af868ad47854 147 ble.setAdvertisingInterval(160); /* 1s; in multiples of 0.625ms. */ //was 1600
alexanderlea 0:af868ad47854 148 ble.startAdvertising();
alexanderlea 0:af868ad47854 149
alexanderlea 0:af868ad47854 150 pc.printf("Advertising node %s\n\r", DEVICE_NAME);
alexanderlea 0:af868ad47854 151
alexanderlea 0:af868ad47854 152 //GATT service stuff - referring to CarCommsService.h
alexanderlea 0:af868ad47854 153 //string testCommand = "Hello world";
alexanderlea 0:af868ad47854 154 // CarCommsService carComm(ble, 150);
alexanderlea 0:af868ad47854 155 //
alexanderlea 0:af868ad47854 156 // uint8_t x = carComm.getCommand();
alexanderlea 0:af868ad47854 157 //
alexanderlea 0:af868ad47854 158 // pc.printf("Command: %u \n", x);
alexanderlea 0:af868ad47854 159
alexanderlea 0:af868ad47854 160
alexanderlea 0:af868ad47854 161 while(true) {
alexanderlea 0:af868ad47854 162
alexanderlea 0:af868ad47854 163 ble.waitForEvent(); // this will return upon any system event (such as an interrupt or a ticker wakeup)
alexanderlea 0:af868ad47854 164
alexanderlea 0:af868ad47854 165 //if(led1 == 1) {
alexanderlea 0:af868ad47854 166 // cmd = 1;
alexanderlea 0:af868ad47854 167 // } else {
alexanderlea 0:af868ad47854 168 // cmd = 0;
alexanderlea 0:af868ad47854 169 // }
alexanderlea 0:af868ad47854 170 //
alexanderlea 0:af868ad47854 171 // commsService.sendCommand(0);
alexanderlea 0:af868ad47854 172 // pc.printf("Command: %u\r\n", commsService.getCommand());
alexanderlea 0:af868ad47854 173
alexanderlea 0:af868ad47854 174 testLevel++;
alexanderlea 0:af868ad47854 175
alexanderlea 0:af868ad47854 176 if (testLevel > 100) {
alexanderlea 1:ebdf445c4bcc 177 testLevel = 0;
alexanderlea 0:af868ad47854 178 }
alexanderlea 0:af868ad47854 179
alexanderlea 0:af868ad47854 180 pc.printf("Level = %u\r\n", testLevel);
alexanderlea 1:ebdf445c4bcc 181 testService.sendCommand(testLevel);
alexanderlea 0:af868ad47854 182
alexanderlea 0:af868ad47854 183 //if(connected) {
alexanderlea 0:af868ad47854 184 // led1 = 1;
alexanderlea 0:af868ad47854 185 // //read data
alexanderlea 0:af868ad47854 186 // //pc.printf("Command: %u \n", carComm.getCommand());
alexanderlea 0:af868ad47854 187 // } else {
alexanderlea 0:af868ad47854 188 // led1 = 0;
alexanderlea 0:af868ad47854 189 // pc.printf("Waiting...\n\r");
alexanderlea 0:af868ad47854 190 // ble.waitForEvent();
alexanderlea 0:af868ad47854 191 // connected = false;
alexanderlea 0:af868ad47854 192 // }
alexanderlea 0:af868ad47854 193 }
alexanderlea 0:af868ad47854 194 }