Eugene Mwangi / Mbed OS mbed-os-example-ble-LED5

3rd revision of my mbedOs ble weight program

source/LEDService.h@79:8ea0d8374ab6, 2019-06-24 (annotated)

Committer:
Eugene0469
Date:
Mon Jun 24 07:02:50 2019 +0000
Revision:
79:8ea0d8374ab6
Parent:
74:51fde11a771f 
Customize LED Service to work as the weight service;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 2:864ddfb70a9c 1 /* mbed Microcontroller Library
mbed_official 2:864ddfb70a9c 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 2:864ddfb70a9c 3 *
mbed_official 2:864ddfb70a9c 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 2:864ddfb70a9c 5 * you may not use this file except in compliance with the License.
mbed_official 2:864ddfb70a9c 6 * You may obtain a copy of the License at
mbed_official 2:864ddfb70a9c 7 *
mbed_official 2:864ddfb70a9c 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 2:864ddfb70a9c 9 *
mbed_official 2:864ddfb70a9c 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 2:864ddfb70a9c 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 2:864ddfb70a9c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 2:864ddfb70a9c 13 * See the License for the specific language governing permissions and
mbed_official 2:864ddfb70a9c 14 * limitations under the License.
mbed_official 2:864ddfb70a9c 15 */
mbed_official 2:864ddfb70a9c 16
mbed_official 2:864ddfb70a9c 17 #ifndef __BLE_LED_SERVICE_H__
mbed_official 2:864ddfb70a9c 18 #define __BLE_LED_SERVICE_H__
mbed_official 2:864ddfb70a9c 19
Eugene0469 79:8ea0d8374ab6 20 typedef struct {
Eugene0469 79:8ea0d8374ab6 21 uint16_t integer;
Eugene0469 79:8ea0d8374ab6 22 uint8_t decimal;
Eugene0469 79:8ea0d8374ab6 23 }WeightType_t;
Eugene0469 79:8ea0d8374ab6 24
mbed_official 2:864ddfb70a9c 25 class LEDService {
mbed_official 2:864ddfb70a9c 26 public:
mbed_official 2:864ddfb70a9c 27 const static uint16_t LED_SERVICE_UUID = 0xA000;
mbed_official 2:864ddfb70a9c 28 const static uint16_t LED_STATE_CHARACTERISTIC_UUID = 0xA001;
mbed_official 2:864ddfb70a9c 29
Eugene0469 79:8ea0d8374ab6 30 LEDService(BLEDevice &_ble, WeightType_t initialValueForLEDCharacteristic) :
mbed_official 2:864ddfb70a9c 31 ble(_ble), ledState(LED_STATE_CHARACTERISTIC_UUID, &initialValueForLEDCharacteristic)
mbed_official 2:864ddfb70a9c 32 {
mbed_official 2:864ddfb70a9c 33 GattCharacteristic *charTable[] = {&ledState};
mbed_official 2:864ddfb70a9c 34 GattService ledService(LED_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
mbed_official 74:51fde11a771f 35
mbed_official 74:51fde11a771f 36 ble.gattServer().addService(ledService);
mbed_official 2:864ddfb70a9c 37 }
mbed_official 2:864ddfb70a9c 38
Eugene0469 79:8ea0d8374ab6 39 // GattAttribute::Handle_t getValueHandle() const
Eugene0469 79:8ea0d8374ab6 40 // {
Eugene0469 79:8ea0d8374ab6 41 // return ledState.getValueHandle();
Eugene0469 79:8ea0d8374ab6 42 // }
Eugene0469 79:8ea0d8374ab6 43 void updateWeight(float newValue)
mbed_official 2:864ddfb70a9c 44 {
Eugene0469 79:8ea0d8374ab6 45 // float newWeight = (float) newValue;
Eugene0469 79:8ea0d8374ab6 46 // ble.gattServer().write(ledState.getValueHandle(),
Eugene0469 79:8ea0d8374ab6 47 // (uint8_t *)&newWeight, sizeof(float));
Eugene0469 79:8ea0d8374ab6 48 WeightType_t *weight;
Eugene0469 79:8ea0d8374ab6 49 weight->integer = (uint16_t)newValue;
Eugene0469 79:8ea0d8374ab6 50 float f_decimal = newValue - weight->integer;
Eugene0469 79:8ea0d8374ab6 51 weight->decimal = (uint8_t)(f_decimal* 100.0f);
Eugene0469 79:8ea0d8374ab6 52 ble.gattServer().write(ledState.getValueHandle(),
Eugene0469 79:8ea0d8374ab6 53 (uint8_t *)weight, sizeof(WeightType_t));
mbed_official 2:864ddfb70a9c 54 }
Eugene0469 79:8ea0d8374ab6 55
mbed_official 2:864ddfb70a9c 56 private:
mbed_official 2:864ddfb70a9c 57 BLEDevice &ble;
Eugene0469 79:8ea0d8374ab6 58 ReadOnlyGattCharacteristic<WeightType_t> ledState;
mbed_official 2:864ddfb70a9c 59 };
mbed_official 2:864ddfb70a9c 60
mbed_official 2:864ddfb70a9c 61 #endif /* #ifndef __BLE_LED_SERVICE_H__ */