mirror of
https://github.com/bluekitchen/btstack.git
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81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
// LE Peripheral Example - not working yet
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#include <BTstack.h>
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#include <SPI.h>
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// setup printf
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static FILE uartout = {0} ;
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static int uart_putchar (char c, FILE *stream) {
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Serial.write(c);
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return 0;
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}
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static void setup_printf(int baud) {
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Serial.begin(baud);
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fdev_setup_stream (&uartout, uart_putchar, NULL, _FDEV_SETUP_WRITE);
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stdout = &uartout;
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}
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static uint16_t value_handle;
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void setup(void){
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setup_printf(9600);
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// set callbacks
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BTstack.setBLEDeviceConnectedCallback(deviceConnectedCallback);
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BTstack.setBLEDeviceDisconnectedCallback(deviceDisconnectedCallback);
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BTstack.setGATTCharacteristicRead(gattReadCallback);
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BTstack.setGATTCharacteristicWrite(gattWriteCallback);
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// setup GATT Database
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int flags = 0;
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uint8_t * data = NULL;
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uint16_t data_len = 0;
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BTstack.addGATTService(new UUID("B8E06067-62AD-41BA-9231-206AE80AB550"));
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value_handle = BTstack.addGATTCharacteristic(new UUID("f897177b-aee8-4767-8ecc-cc694fd5fcee"), flags, "This is a String!");
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// startup Bluetooth and activate advertisements
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BTstack.setup();
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BTstack.startAdvertising();
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}
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void loop(void){
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BTstack.loop();
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}
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void deviceConnectedCallback(BLEStatus status, BLEDevice *device) {
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switch (status){
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case BLE_STATUS_OK:
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printf("Device connected!\n");
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break;
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default:
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break;
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}
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}
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void deviceDisconnectedCallback(BLEDevice * device){
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printf("Disconnected.\n");
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}
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// ATT Client Read Callback for Dynamic Data
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// - if buffer == NULL, don't copy data, just return size of value
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// - if buffer != NULL, copy data and return number bytes copied
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// @param characteristic_id to be read
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// @param buffer
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// @param buffer_size
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uint16_t gattReadCallback(uint16_t value_handle, uint8_t * buffer, uint16_t buffer_size){
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printf("gattReadCallback, handle %u\n", value_handle);
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return 0;
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}
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// ATT Client Write Callback for Dynamic Data
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// @param characteristic_id to be read
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// @param buffer
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// @param buffer_size
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// @returns 0 if write was ok, ATT_ERROR_INVALID_OFFSET if offset is larger than max buffer
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int gattWriteCallback(uint16_t value_handle, uint8_t *buffer, uint16_t buffer_size){
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printf("gattWriteCallback, handle %u\n", value_handle);
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return 0;
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}
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