![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
This is a basic program that provides the necessary BLE service to allow communications with the UPAS
Dependencies: BLE_API mbed nRF51822 CronoDot EEPROM NCP5623BMUTBG ADS1115 BME280 Calibration_one MCP40D17 SDFileSystem LSM303 SI1145 STC3100
Fork of BLE_Button by
main.cpp@10:66549fa08986, 2015-10-20 (annotated)
- Committer:
- jelord
- Date:
- Tue Oct 20 20:38:04 2015 +0000
- Revision:
- 10:66549fa08986
- Parent:
- 9:0f6951db24f1
- Child:
- 11:1058647c66e8
Program to control BLE communication with UPAS
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jelord | 10:66549fa08986 | 1 | //CODE BY JAKE LORD |
jelord | 10:66549fa08986 | 2 | //ALL RIGHTS RESERVED BY VOLCKENS GROUP, FORT COLLINS CO |
rgrover1 | 0:28f095301cb2 | 3 | #include "mbed.h" |
rgrover1 | 5:43a3ab27f2e4 | 4 | #include "BLE.h" |
jelord | 10:66549fa08986 | 5 | #include "UPAS_Service.h" |
rgrover1 | 0:28f095301cb2 | 6 | |
rgrover1 | 6:18d8750f39ee | 7 | BLE ble; |
jelord | 10:66549fa08986 | 8 | DigitalOut led1(LED1); //Use of leds is important for debugging |
rgrover1 | 0:28f095301cb2 | 9 | |
jelord | 10:66549fa08986 | 10 | const static char DEVICE_NAME[] = "UPAS"; //Will hold the actual name of the whichever UPAS is being connected to |
jelord | 10:66549fa08986 | 11 | static const uint16_t uuid16_list[] = {UPAS_Service::UPAS_SERVICE_UUID}; //Currently a custom 16-bit representation of 128-bit UUID |
rgrover1 | 0:28f095301cb2 | 12 | |
jelord | 10:66549fa08986 | 13 | UPAS_Service *upasServicePtr; |
rgrover1 | 0:28f095301cb2 | 14 | |
jelord | 10:66549fa08986 | 15 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)//Code called when mbed ble senses a disconnect |
rgrover1 | 0:28f095301cb2 | 16 | { |
rgrover1 | 6:18d8750f39ee | 17 | ble.gap().startAdvertising(); |
rgrover1 | 0:28f095301cb2 | 18 | } |
rgrover1 | 0:28f095301cb2 | 19 | |
rgrover1 | 0:28f095301cb2 | 20 | void periodicCallback(void) |
rgrover1 | 0:28f095301cb2 | 21 | { |
rgrover1 | 0:28f095301cb2 | 22 | led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */ |
rgrover1 | 0:28f095301cb2 | 23 | } |
rgrover1 | 0:28f095301cb2 | 24 | |
jelord | 10:66549fa08986 | 25 | void writeCharCallback(const GattWriteCallbackParams *params) |
jelord | 10:66549fa08986 | 26 | { |
jelord | 10:66549fa08986 | 27 | led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */ |
jelord | 10:66549fa08986 | 28 | |
jelord | 10:66549fa08986 | 29 | // check to see what characteristic was written, by handle |
jelord | 10:66549fa08986 | 30 | if(params->handle == upasServicePtr->writeChar.getValueHandle()) { |
jelord | 10:66549fa08986 | 31 | // toggle LED if only 1 byte is written |
jelord | 10:66549fa08986 | 32 | if(params->len == 1) { |
jelord | 10:66549fa08986 | 33 | led1 = params->data[0]; |
jelord | 10:66549fa08986 | 34 | } |
jelord | 10:66549fa08986 | 35 | // update the readChar with the value of writeChar |
jelord | 10:66549fa08986 | 36 | ble.updateCharacteristicValue(upasServicePtr->readChar.getValueHandle(),params->data,params->len); |
jelord | 10:66549fa08986 | 37 | } |
jelord | 10:66549fa08986 | 38 | } |
jelord | 10:66549fa08986 | 39 | |
rgrover1 | 0:28f095301cb2 | 40 | int main(void) |
rgrover1 | 0:28f095301cb2 | 41 | { |
rgrover1 | 0:28f095301cb2 | 42 | led1 = 1; |
rgrover1 | 0:28f095301cb2 | 43 | Ticker ticker; |
rgrover1 | 0:28f095301cb2 | 44 | ticker.attach(periodicCallback, 1); |
jelord | 10:66549fa08986 | 45 | |
jelord | 10:66549fa08986 | 46 | uint8_t readValues[57] = {0x31,0x30,0x2F,0x31,0x38,0x2F,0x31,0x35,0x20,0x31,0x32,0x3A,0x30,0x30,0x3A,0x30,0x30}; //dummy array for testing |
rgrover1 | 0:28f095301cb2 | 47 | |
rgrover1 | 0:28f095301cb2 | 48 | ble.init(); |
rgrover1 | 6:18d8750f39ee | 49 | ble.gap().onDisconnection(disconnectionCallback); |
jelord | 10:66549fa08986 | 50 | ble.gattServer().onDataWritten(writeCharCallback); //add writeCharCallback (custom function) to whenever data is being written to device |
jelord | 10:66549fa08986 | 51 | |
jelord | 10:66549fa08986 | 52 | UPAS_Service upasService(ble, false,readValues); //Create a GattService that is defined in UPAS_Service.h |
jelord | 10:66549fa08986 | 53 | upasServicePtr = &upasService; //Create a pointer to the service (Allows advertisement without specifically adding the service |
rgrover1 | 0:28f095301cb2 | 54 | |
jelord | 10:66549fa08986 | 55 | /* setup advertising |
jelord | 10:66549fa08986 | 56 | Following lines do the follow: |
jelord | 10:66549fa08986 | 57 | 1:Declare the device as Bluetooth Smart(Low-Energy) |
jelord | 10:66549fa08986 | 58 | 2.Advertise the UPAS service that will send and receive the 57-bits of settable values in the UPAS EEPROM |
jelord | 10:66549fa08986 | 59 | 3.Advertise the name that will be associated with the UPAS |
jelord | 10:66549fa08986 | 60 | 4.Allow the UPAS to advertise unrestricted (this might change) */ |
jelord | 10:66549fa08986 | 61 | |
rgrover1 | 6:18d8750f39ee | 62 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); |
rgrover1 | 6:18d8750f39ee | 63 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); |
rgrover1 | 6:18d8750f39ee | 64 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); |
rgrover1 | 6:18d8750f39ee | 65 | ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
jelord | 10:66549fa08986 | 66 | ble.gap().setAdvertisingInterval(160); /* 160ms. */ |
rgrover1 | 6:18d8750f39ee | 67 | ble.gap().startAdvertising(); |
jelord | 10:66549fa08986 | 68 | |
jelord | 10:66549fa08986 | 69 | //Loop keeps device in infinite loop waiting for events to occur |
rgrover1 | 0:28f095301cb2 | 70 | while (true) { |
rgrover1 | 0:28f095301cb2 | 71 | ble.waitForEvent(); |
rgrover1 | 0:28f095301cb2 | 72 | } |
rgrover1 | 0:28f095301cb2 | 73 | } |