Volodymyr Shymanskyy / Mbed 2 deprecated SmartButton

Smart Button

Dependencies:   BLE_API mbed nRF51822

main.cpp@1:795c0e3fbd4e, 2016-10-16 (annotated)

Committer:
vshymanskyy
Date:
Sun Oct 16 14:19:47 2016 +0000
Revision:
1:795c0e3fbd4e
Parent:
0:d7ba2329a303 
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vshymanskyy 0:d7ba2329a303 1 #include "mbed.h"
vshymanskyy 0:d7ba2329a303 2 #include "BLE.h"
vshymanskyy 0:d7ba2329a303 3
vshymanskyy 0:d7ba2329a303 4 class ButtonService {
vshymanskyy 0:d7ba2329a303 5 public:
vshymanskyy 0:d7ba2329a303 6 const static uint16_t BUTTON_SERVICE_UUID = 0xA000;
vshymanskyy 0:d7ba2329a303 7 const static uint16_t BUTTON_STATE_CHARACTERISTIC_UUID = 0xA001;
vshymanskyy 0:d7ba2329a303 8
vshymanskyy 0:d7ba2329a303 9 ButtonService(BLEDevice &_ble, bool buttonPressedInitial) :
vshymanskyy 0:d7ba2329a303 10 ble(_ble), buttonState(BUTTON_STATE_CHARACTERISTIC_UUID, &buttonPressedInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
vshymanskyy 0:d7ba2329a303 11 {
vshymanskyy 0:d7ba2329a303 12 GattCharacteristic *charTable[] = {&buttonState};
vshymanskyy 0:d7ba2329a303 13 GattService buttonService(ButtonService::BUTTON_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
vshymanskyy 0:d7ba2329a303 14 ble.gattServer().addService(buttonService);
vshymanskyy 0:d7ba2329a303 15 }
vshymanskyy 0:d7ba2329a303 16
vshymanskyy 0:d7ba2329a303 17 void updateButtonState(bool newState)
vshymanskyy 0:d7ba2329a303 18 {
vshymanskyy 0:d7ba2329a303 19 ble.gattServer().write(buttonState.getValueHandle(), (uint8_t *)&newState, sizeof(bool));
vshymanskyy 0:d7ba2329a303 20 }
vshymanskyy 0:d7ba2329a303 21
vshymanskyy 0:d7ba2329a303 22 private:
vshymanskyy 0:d7ba2329a303 23 BLEDevice &ble;
vshymanskyy 0:d7ba2329a303 24 ReadOnlyGattCharacteristic<bool> buttonState;
vshymanskyy 0:d7ba2329a303 25 };
vshymanskyy 0:d7ba2329a303 26
vshymanskyy 0:d7ba2329a303 27 class LEDService {
vshymanskyy 0:d7ba2329a303 28 public:
vshymanskyy 0:d7ba2329a303 29 const static uint16_t LED_SERVICE_UUID = 0xB000;
vshymanskyy 0:d7ba2329a303 30 const static uint16_t LED_STATE_CHARACTERISTIC_UUID = 0xB001;
vshymanskyy 0:d7ba2329a303 31
vshymanskyy 0:d7ba2329a303 32 LEDService(BLEDevice &_ble, bool initialValueForLEDCharacteristic = false) :
vshymanskyy 0:d7ba2329a303 33 ble(_ble), ledState(LED_STATE_CHARACTERISTIC_UUID, &initialValueForLEDCharacteristic)
vshymanskyy 0:d7ba2329a303 34 {
vshymanskyy 0:d7ba2329a303 35 GattCharacteristic *charTable[] = {&ledState};
vshymanskyy 0:d7ba2329a303 36 GattService ledService(LED_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
vshymanskyy 0:d7ba2329a303 37 ble.gattServer().addService(ledService);
vshymanskyy 0:d7ba2329a303 38 }
vshymanskyy 0:d7ba2329a303 39
vshymanskyy 0:d7ba2329a303 40 GattAttribute::Handle_t getValueHandle() const
vshymanskyy 0:d7ba2329a303 41 {
vshymanskyy 0:d7ba2329a303 42 return ledState.getValueHandle();
vshymanskyy 0:d7ba2329a303 43 }
vshymanskyy 0:d7ba2329a303 44
vshymanskyy 0:d7ba2329a303 45 private:
vshymanskyy 0:d7ba2329a303 46 BLEDevice &ble;
vshymanskyy 0:d7ba2329a303 47 ReadWriteGattCharacteristic<bool> ledState;
vshymanskyy 0:d7ba2329a303 48 };
vshymanskyy 0:d7ba2329a303 49
vshymanskyy 0:d7ba2329a303 50 class BuzzerService {
vshymanskyy 0:d7ba2329a303 51 public:
vshymanskyy 0:d7ba2329a303 52 const static uint16_t BUZZ_SERVICE_UUID = 0xC000;
vshymanskyy 0:d7ba2329a303 53 const static uint16_t BUZZ_STATE_CHARACTERISTIC_UUID = 0xC001;
vshymanskyy 0:d7ba2329a303 54
vshymanskyy 0:d7ba2329a303 55 BuzzerService(BLEDevice &_ble, uint16_t initialValue = 0) :
vshymanskyy 0:d7ba2329a303 56 ble(_ble), buzzState(BUZZ_STATE_CHARACTERISTIC_UUID, &initialValue)
vshymanskyy 0:d7ba2329a303 57 {
vshymanskyy 0:d7ba2329a303 58 GattCharacteristic *charTable[] = {&buzzState};
vshymanskyy 0:d7ba2329a303 59 GattService buzzService(BUZZ_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
vshymanskyy 0:d7ba2329a303 60 ble.gattServer().addService(buzzService);
vshymanskyy 0:d7ba2329a303 61 }
vshymanskyy 0:d7ba2329a303 62
vshymanskyy 0:d7ba2329a303 63 GattAttribute::Handle_t getValueHandle() const
vshymanskyy 0:d7ba2329a303 64 {
vshymanskyy 0:d7ba2329a303 65 return buzzState.getValueHandle();
vshymanskyy 0:d7ba2329a303 66 }
vshymanskyy 0:d7ba2329a303 67
vshymanskyy 0:d7ba2329a303 68 private:
vshymanskyy 0:d7ba2329a303 69 BLEDevice &ble;
vshymanskyy 0:d7ba2329a303 70 ReadWriteGattCharacteristic<uint16_t> buzzState;
vshymanskyy 0:d7ba2329a303 71 };
vshymanskyy 0:d7ba2329a303 72
vshymanskyy 0:d7ba2329a303 73 DigitalOut led1(p14);
vshymanskyy 0:d7ba2329a303 74 DigitalOut led2(p15);
vshymanskyy 0:d7ba2329a303 75 InterruptIn button(p16);
vshymanskyy 0:d7ba2329a303 76 PwmOut* buzzer = NULL;
vshymanskyy 0:d7ba2329a303 77
vshymanskyy 0:d7ba2329a303 78 void setBuzzer(uint16_t value) {
vshymanskyy 0:d7ba2329a303 79 if (value) {
vshymanskyy 0:d7ba2329a303 80 if (!buzzer) {
vshymanskyy 0:d7ba2329a303 81 buzzer = new PwmOut(p30);
vshymanskyy 0:d7ba2329a303 82 }
vshymanskyy 0:d7ba2329a303 83 buzzer->period(1.0/value);
vshymanskyy 0:d7ba2329a303 84 buzzer->write(0.5);
vshymanskyy 0:d7ba2329a303 85 } else {
vshymanskyy 0:d7ba2329a303 86 if (buzzer) {
vshymanskyy 0:d7ba2329a303 87 buzzer->write(0);
vshymanskyy 0:d7ba2329a303 88 delete buzzer;
vshymanskyy 0:d7ba2329a303 89 buzzer = NULL;
vshymanskyy 0:d7ba2329a303 90 }
vshymanskyy 0:d7ba2329a303 91 }
vshymanskyy 0:d7ba2329a303 92 }
vshymanskyy 0:d7ba2329a303 93
vshymanskyy 0:d7ba2329a303 94 static const uint8_t device_name[] = "Nut2";
vshymanskyy 0:d7ba2329a303 95 static const uint16_t uuid16_list[] = {
vshymanskyy 0:d7ba2329a303 96 ButtonService::BUTTON_SERVICE_UUID,
vshymanskyy 0:d7ba2329a303 97 LEDService::LED_SERVICE_UUID
vshymanskyy 0:d7ba2329a303 98 };
vshymanskyy 0:d7ba2329a303 99
vshymanskyy 0:d7ba2329a303 100 BLEDevice ble;
vshymanskyy 0:d7ba2329a303 101 ButtonService *svcButton;
vshymanskyy 0:d7ba2329a303 102 LEDService *svcLed1;
vshymanskyy 0:d7ba2329a303 103 LEDService *svcLed2;
vshymanskyy 0:d7ba2329a303 104 BuzzerService *svcBuzzer;
vshymanskyy 0:d7ba2329a303 105
vshymanskyy 0:d7ba2329a303 106 void buttonPressedCallback(void)
vshymanskyy 0:d7ba2329a303 107 {
vshymanskyy 0:d7ba2329a303 108 svcButton->updateButtonState(true);
vshymanskyy 0:d7ba2329a303 109 }
vshymanskyy 0:d7ba2329a303 110
vshymanskyy 0:d7ba2329a303 111 void buttonReleasedCallback(void)
vshymanskyy 0:d7ba2329a303 112 {
vshymanskyy 0:d7ba2329a303 113 svcButton->updateButtonState(false);
vshymanskyy 0:d7ba2329a303 114 }
vshymanskyy 0:d7ba2329a303 115
vshymanskyy 0:d7ba2329a303 116 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t* reason)
vshymanskyy 0:d7ba2329a303 117 {
vshymanskyy 0:d7ba2329a303 118 ble.startAdvertising();
vshymanskyy 0:d7ba2329a303 119 led1 = 1;
vshymanskyy 0:d7ba2329a303 120 led2 = 1;
vshymanskyy 0:d7ba2329a303 121 setBuzzer(0);
vshymanskyy 0:d7ba2329a303 122 }
vshymanskyy 0:d7ba2329a303 123
vshymanskyy 0:d7ba2329a303 124 void onDataWrittenCallback(const GattWriteCallbackParams *params)
vshymanskyy 0:d7ba2329a303 125 {
vshymanskyy 0:d7ba2329a303 126 if ((params->handle == svcLed1->getValueHandle()) && (params->len == 1)) {
vshymanskyy 0:d7ba2329a303 127 led1 = !*(params->data);
vshymanskyy 0:d7ba2329a303 128 } else if ((params->handle == svcLed2->getValueHandle()) && (params->len == 1)) {
vshymanskyy 0:d7ba2329a303 129 led2 = !*(params->data);
vshymanskyy 0:d7ba2329a303 130 } else if ((params->handle == svcBuzzer->getValueHandle()) && (params->len == 2)) {
vshymanskyy 0:d7ba2329a303 131 setBuzzer(*(uint16_t*)(params->data));
vshymanskyy 0:d7ba2329a303 132 }
vshymanskyy 0:d7ba2329a303 133 }
vshymanskyy 0:d7ba2329a303 134
vshymanskyy 0:d7ba2329a303 135 int main(void)
vshymanskyy 0:d7ba2329a303 136 {
vshymanskyy 0:d7ba2329a303 137 led1 = 1;
vshymanskyy 0:d7ba2329a303 138 led2 = 1;
vshymanskyy 0:d7ba2329a303 139 setBuzzer(0);
vshymanskyy 0:d7ba2329a303 140 //Ticker ticker;
vshymanskyy 0:d7ba2329a303 141 //ticker.attach([] { led1 = !led1; }, 1.0);
vshymanskyy 0:d7ba2329a303 142 button.fall(buttonPressedCallback);
vshymanskyy 0:d7ba2329a303 143 button.rise(buttonReleasedCallback);
vshymanskyy 0:d7ba2329a303 144
vshymanskyy 0:d7ba2329a303 145 ble.init();
vshymanskyy 0:d7ba2329a303 146 ble.onDisconnection(disconnectionCallback);
vshymanskyy 0:d7ba2329a303 147 ble.gattServer().onDataWritten(onDataWrittenCallback);
vshymanskyy 0:d7ba2329a303 148
vshymanskyy 0:d7ba2329a303 149 svcButton = new ButtonService(ble, false);
vshymanskyy 0:d7ba2329a303 150 svcLed1 = new LEDService(ble);
vshymanskyy 0:d7ba2329a303 151 svcLed2 = new LEDService(ble);
vshymanskyy 0:d7ba2329a303 152 svcBuzzer = new BuzzerService(ble);
vshymanskyy 0:d7ba2329a303 153
vshymanskyy 0:d7ba2329a303 154 // setup advertising
vshymanskyy 0:d7ba2329a303 155 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
vshymanskyy 0:d7ba2329a303 156 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
vshymanskyy 0:d7ba2329a303 157 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, device_name, sizeof(device_name));
vshymanskyy 0:d7ba2329a303 158
vshymanskyy 0:d7ba2329a303 159 ble.gap().setDeviceName(device_name);
vshymanskyy 0:d7ba2329a303 160 ble.gap().setTxPower(4);
vshymanskyy 0:d7ba2329a303 161 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
vshymanskyy 0:d7ba2329a303 162 ble.gap().setAdvertisingInterval(Gap::MSEC_TO_GAP_DURATION_UNITS(1000));
vshymanskyy 0:d7ba2329a303 163 ble.gap().setAdvertisingTimeout(0);
vshymanskyy 0:d7ba2329a303 164 ble.startAdvertising();
vshymanskyy 0:d7ba2329a303 165
vshymanskyy 0:d7ba2329a303 166 while (true) {
vshymanskyy 0:d7ba2329a303 167 ble.waitForEvent();
vshymanskyy 0:d7ba2329a303 168 }
vshymanskyy 0:d7ba2329a303 169 }