Little domotic project: Controlling RGB color's intensity of the JUMA card with an Android App. Here's the corresponding App's source code --> https://github.com/NordineKhelfi/Android_Bluetooth_Low_Energy
Dependencies: BLE_API mbed nRF51822
Fork of BLE_GATT_Example by
main.cpp@23:d63b6764b95d, 2017-04-23 (annotated)
- Committer:
- Super_Mario
- Date:
- Sun Apr 23 20:48:42 2017 +0000
- Revision:
- 23:d63b6764b95d
- Parent:
- 22:406127954d1f
Little domotic project: controlling RGB color intensity of the JUMA SMP Tag from an Android App'; ; Here's the matching App's source code --> https://github.com/NordineKhelfi/Android_Bluetooth_Low_Energy
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbedAustin | 0:cd5b6733aeb1 | 1 | #include "mbed.h" |
andresag | 19:477567297aac | 2 | #include "ble/BLE.h" |
mbedAustin | 1:94152e7d8b5c | 3 | |
andresag | 19:477567297aac | 4 | DigitalOut led(LED1, 1); |
Super_Mario | 23:d63b6764b95d | 5 | Serial pc(P0_0, P0_1); |
Super_Mario | 23:d63b6764b95d | 6 | |
Super_Mario | 23:d63b6764b95d | 7 | DigitalOut dSwitch(P0_4); |
Super_Mario | 23:d63b6764b95d | 8 | |
Super_Mario | 23:d63b6764b95d | 9 | PwmOut ledB(P0_5); |
Super_Mario | 23:d63b6764b95d | 10 | PwmOut ledG(P0_6); |
Super_Mario | 23:d63b6764b95d | 11 | PwmOut ledR(P0_7); |
Super_Mario | 23:d63b6764b95d | 12 | |
Super_Mario | 23:d63b6764b95d | 13 | uint16_t customServiceUUID = 0x1812; |
Super_Mario | 23:d63b6764b95d | 14 | |
mbedAustin | 13:62b1d32745ac | 15 | uint16_t readCharUUID = 0xA001; |
mbedAustin | 9:b33f42191584 | 16 | uint16_t writeCharUUID = 0xA002; |
Super_Mario | 23:d63b6764b95d | 17 | uint16_t writeRedCharUUID = 0xA003; |
Super_Mario | 23:d63b6764b95d | 18 | uint16_t writeGreenCharUUID = 0xA004; |
mbedAustin | 1:94152e7d8b5c | 19 | |
Super_Mario | 23:d63b6764b95d | 20 | |
Super_Mario | 23:d63b6764b95d | 21 | const static char DEVICE_NAME[] = "GATT Example"; // change this |
mbedAustin | 8:60ede963dfe2 | 22 | static const uint16_t uuid16_list[] = {0xFFFF}; //Custom UUID, FFFF is reserved for development |
mbedAustin | 1:94152e7d8b5c | 23 | |
Super_Mario | 23:d63b6764b95d | 24 | |
Super_Mario | 23:d63b6764b95d | 25 | |
Super_Mario | 23:d63b6764b95d | 26 | /* Set Up custom Characteristics -----------------------------------------------------------------------------------------------------*/ |
mbedAustin | 9:b33f42191584 | 27 | static uint8_t readValue[10] = {0}; |
mbedAustin | 12:6d1f77d0cb37 | 28 | ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue); |
mbedAustin | 2:e84c13abc479 | 29 | |
mbedAustin | 9:b33f42191584 | 30 | static uint8_t writeValue[10] = {0}; |
mbedAustin | 12:6d1f77d0cb37 | 31 | WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue); |
mbedAustin | 2:e84c13abc479 | 32 | |
Super_Mario | 23:d63b6764b95d | 33 | //On construit un "WriteOnlyArrayGattCharacteristic" --> writeRedChar |
Super_Mario | 23:d63b6764b95d | 34 | static uint8_t writeRedValue[10] = {0}; |
Super_Mario | 23:d63b6764b95d | 35 | WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeRedValue)> writeRedChar(writeRedCharUUID, writeRedValue); |
Super_Mario | 23:d63b6764b95d | 36 | |
Super_Mario | 23:d63b6764b95d | 37 | static uint8_t writeGreenValue[10] = {0}; |
Super_Mario | 23:d63b6764b95d | 38 | WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeGreenValue)> writeGreenChar(writeGreenCharUUID, writeGreenValue); |
Super_Mario | 23:d63b6764b95d | 39 | |
Super_Mario | 23:d63b6764b95d | 40 | |
Super_Mario | 23:d63b6764b95d | 41 | /* ---------------------------------------------------------------------------------------------------------------------*/ |
Super_Mario | 23:d63b6764b95d | 42 | |
Super_Mario | 23:d63b6764b95d | 43 | |
andresag | 22:406127954d1f | 44 | /* Set up custom service */ |
Super_Mario | 23:d63b6764b95d | 45 | GattCharacteristic *characteristics[] = {&readChar, &writeChar, &writeRedChar, &writeGreenChar}; |
mbedAustin | 9:b33f42191584 | 46 | GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *)); |
mbedAustin | 2:e84c13abc479 | 47 | |
mbedAustin | 2:e84c13abc479 | 48 | |
mbedAustin | 8:60ede963dfe2 | 49 | /* |
mbedAustin | 8:60ede963dfe2 | 50 | * Restart advertising when phone app disconnects |
andresag | 19:477567297aac | 51 | */ |
andresag | 19:477567297aac | 52 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *) |
mbedAustin | 1:94152e7d8b5c | 53 | { |
andresag | 22:406127954d1f | 54 | BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); |
mbedAustin | 1:94152e7d8b5c | 55 | } |
mbedAustin | 0:cd5b6733aeb1 | 56 | |
andresag | 19:477567297aac | 57 | /* |
andresag | 22:406127954d1f | 58 | * Handle writes to writeCharacteristic |
mbedAustin | 8:60ede963dfe2 | 59 | */ |
melmon | 18:7d89c4fba362 | 60 | void writeCharCallback(const GattWriteCallbackParams *params) |
mbedAustin | 3:0fb60f81f693 | 61 | { |
andresag | 22:406127954d1f | 62 | /* Check to see what characteristic was written, by handle */ |
melmon | 18:7d89c4fba362 | 63 | if(params->handle == writeChar.getValueHandle()) { |
Super_Mario | 23:d63b6764b95d | 64 | |
Super_Mario | 23:d63b6764b95d | 65 | float fPwm = (float) ( 100 - params->data[0] ) / 100.0; |
Super_Mario | 23:d63b6764b95d | 66 | pc.printf("fPwm --> %f\n", fPwm); |
Super_Mario | 23:d63b6764b95d | 67 | ledB.write(fPwm); |
Super_Mario | 23:d63b6764b95d | 68 | |
andresag | 22:406127954d1f | 69 | /* Update the readChar with the value of writeChar */ |
andresag | 22:406127954d1f | 70 | BLE::Instance(BLE::DEFAULT_INSTANCE).gattServer().write(readChar.getValueHandle(), params->data, params->len); |
mbedAustin | 8:60ede963dfe2 | 71 | } |
Super_Mario | 23:d63b6764b95d | 72 | /* Check to see what characteristic was written, by handle */ |
Super_Mario | 23:d63b6764b95d | 73 | else if(params->handle == writeRedChar.getValueHandle()) { |
Super_Mario | 23:d63b6764b95d | 74 | |
Super_Mario | 23:d63b6764b95d | 75 | float fPwm = (float) ( 100 - params->data[0] ) / 100.0; |
Super_Mario | 23:d63b6764b95d | 76 | pc.printf("fPwm --> %f\n", fPwm); |
Super_Mario | 23:d63b6764b95d | 77 | ledR.write(fPwm); |
Super_Mario | 23:d63b6764b95d | 78 | |
Super_Mario | 23:d63b6764b95d | 79 | if(fPwm >= 0.50) |
Super_Mario | 23:d63b6764b95d | 80 | dSwitch = true; |
Super_Mario | 23:d63b6764b95d | 81 | else |
Super_Mario | 23:d63b6764b95d | 82 | dSwitch = false; |
Super_Mario | 23:d63b6764b95d | 83 | } |
Super_Mario | 23:d63b6764b95d | 84 | /* Check to see what characteristic was written, by handle */ |
Super_Mario | 23:d63b6764b95d | 85 | else if(params->handle == writeGreenChar.getValueHandle()) { |
Super_Mario | 23:d63b6764b95d | 86 | |
Super_Mario | 23:d63b6764b95d | 87 | float fPwm = (float) ( 100 - params->data[0] ) / 100.0; |
Super_Mario | 23:d63b6764b95d | 88 | pc.printf("fPwm --> %f\n", fPwm); |
Super_Mario | 23:d63b6764b95d | 89 | ledG.write(fPwm); |
Super_Mario | 23:d63b6764b95d | 90 | } |
mbedAustin | 3:0fb60f81f693 | 91 | } |
andresag | 22:406127954d1f | 92 | /* |
andresag | 22:406127954d1f | 93 | * Initialization callback |
andresag | 22:406127954d1f | 94 | */ |
andresag | 22:406127954d1f | 95 | void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) |
andresag | 22:406127954d1f | 96 | { |
andresag | 22:406127954d1f | 97 | BLE &ble = params->ble; |
andresag | 22:406127954d1f | 98 | ble_error_t error = params->error; |
Super_Mario | 23:d63b6764b95d | 99 | |
andresag | 22:406127954d1f | 100 | if (error != BLE_ERROR_NONE) { |
andresag | 22:406127954d1f | 101 | return; |
andresag | 22:406127954d1f | 102 | } |
mbedAustin | 0:cd5b6733aeb1 | 103 | |
andresag | 19:477567297aac | 104 | ble.gap().onDisconnection(disconnectionCallback); |
andresag | 19:477567297aac | 105 | ble.gattServer().onDataWritten(writeCharCallback); |
mbedAustin | 2:e84c13abc479 | 106 | |
andresag | 22:406127954d1f | 107 | /* Setup advertising */ |
andresag | 19:477567297aac | 108 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT |
andresag | 19:477567297aac | 109 | ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type |
andresag | 19:477567297aac | 110 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name |
andresag | 19:477567297aac | 111 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet |
andresag | 19:477567297aac | 112 | ble.gap().setAdvertisingInterval(100); // 100ms. |
mbedAustin | 2:e84c13abc479 | 113 | |
andresag | 22:406127954d1f | 114 | /* Add our custom service */ |
mbedAustin | 13:62b1d32745ac | 115 | ble.addService(customService); |
mbedAustin | 2:e84c13abc479 | 116 | |
andresag | 22:406127954d1f | 117 | /* Start advertising */ |
andresag | 19:477567297aac | 118 | ble.gap().startAdvertising(); |
andresag | 22:406127954d1f | 119 | } |
andresag | 19:477567297aac | 120 | |
andresag | 22:406127954d1f | 121 | /* |
andresag | 22:406127954d1f | 122 | * Main loop |
andresag | 22:406127954d1f | 123 | */ |
andresag | 22:406127954d1f | 124 | int main(void) |
andresag | 22:406127954d1f | 125 | { |
andresag | 22:406127954d1f | 126 | /* initialize stuff */ |
Super_Mario | 23:d63b6764b95d | 127 | pc.printf("\n\r********* Starting Main Loop *********\n\r"); |
Super_Mario | 23:d63b6764b95d | 128 | |
Super_Mario | 23:d63b6764b95d | 129 | ledB = 1; |
Super_Mario | 23:d63b6764b95d | 130 | ledG = 1; |
Super_Mario | 23:d63b6764b95d | 131 | ledR = 1; |
andresag | 22:406127954d1f | 132 | |
Super_Mario | 23:d63b6764b95d | 133 | dSwitch = false; |
Super_Mario | 23:d63b6764b95d | 134 | |
andresag | 22:406127954d1f | 135 | BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE); |
andresag | 22:406127954d1f | 136 | ble.init(bleInitComplete); |
Super_Mario | 23:d63b6764b95d | 137 | |
andresag | 22:406127954d1f | 138 | /* SpinWait for initialization to complete. This is necessary because the |
andresag | 22:406127954d1f | 139 | * BLE object is used in the main loop below. */ |
Super_Mario | 23:d63b6764b95d | 140 | while (ble.hasInitialized() == false) { |
Super_Mario | 23:d63b6764b95d | 141 | /* spin loop */ |
Super_Mario | 23:d63b6764b95d | 142 | } |
andresag | 22:406127954d1f | 143 | |
andresag | 22:406127954d1f | 144 | /* Infinite loop waiting for BLE interrupt events */ |
mbedAustin | 2:e84c13abc479 | 145 | while (true) { |
andresag | 22:406127954d1f | 146 | ble.waitForEvent(); /* Save power */ |
mbedAustin | 2:e84c13abc479 | 147 | } |
andresag | 20:fcc752d401ec | 148 | } |