mamont mamont
/
nrf52840_mdk_ble_button
nrf52840-mdk
Revision 0:e8b2929feaea, committed 2020-06-05
- Comitter:
- mamont090671
- Date:
- Fri Jun 05 14:20:12 2020 +0000
- Commit message:
- nrf52840-mdk
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ButtonService.h Fri Jun 05 14:20:12 2020 +0000 @@ -0,0 +1,42 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __BLE_BUTTON_SERVICE_H__ +#define __BLE_BUTTON_SERVICE_H__ + +class ButtonService { +public: + const static uint16_t BUTTON_SERVICE_UUID = 0xA000; + const static uint16_t BUTTON_STATE_CHARACTERISTIC_UUID = 0xA001; + + ButtonService(BLE &_ble, bool buttonPressedInitial) : + ble(_ble), buttonState(BUTTON_STATE_CHARACTERISTIC_UUID, &buttonPressedInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) + { + GattCharacteristic *charTable[] = {&buttonState}; + GattService buttonService(ButtonService::BUTTON_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *)); + ble.gattServer().addService(buttonService); + } + + void updateButtonState(bool newState) { + ble.gattServer().write(buttonState.getValueHandle(), (uint8_t *)&newState, sizeof(bool)); + } + +private: + BLE &ble; + ReadOnlyGattCharacteristic<bool> buttonState; +}; + +#endif /* #ifndef __BLE_BUTTON_SERVICE_H__ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Jun 05 14:20:12 2020 +0000 @@ -0,0 +1,128 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <events/mbed_events.h> + +#include <mbed.h> +#include "ble/BLE.h" +#include "ble/Gap.h" +#include "ButtonService.h" + +DigitalOut led1(P0_24, 1); +InterruptIn button(P0_18); + +static EventQueue eventQueue(/* event count */ 10 * EVENTS_EVENT_SIZE); + +const static char DEVICE_NAME[] = "Button"; +static const uint16_t uuid16_list[] = {ButtonService::BUTTON_SERVICE_UUID}; + +ButtonService *buttonServicePtr; + +void buttonPressedCallback(void) +{ + eventQueue.call(Callback<void(bool)>(buttonServicePtr, &ButtonService::updateButtonState), true); +} + +void buttonReleasedCallback(void) +{ + eventQueue.call(Callback<void(bool)>(buttonServicePtr, &ButtonService::updateButtonState), false); +} + +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + BLE::Instance().gap().startAdvertising(); // restart advertising + led1 = 1; +} +void connectionCallback(const Gap::ConnectionCallbackParams_t *params) +{ + led1 = 0; +} + +void blinkCallback(void) +{ +// led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */ +} + +void onBleInitError(BLE &ble, ble_error_t error) +{ + /* Initialization error handling should go here */ +} + +void printMacAddress() +{ + /* Print out device MAC address to the console*/ + Gap::AddressType_t addr_type; + Gap::Address_t address; + BLE::Instance().gap().getAddress(&addr_type, address); + printf("DEVICE MAC ADDRESS: "); + for (int i = 5; i >= 1; i--){ + printf("%02x:", address[i]); + } + printf("%02x\r\n", address[0]); +} + +void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) +{ + BLE& ble = params->ble; + ble_error_t error = params->error; + + if (error != BLE_ERROR_NONE) { + /* In case of error, forward the error handling to onBleInitError */ + onBleInitError(ble, error); + return; + } + + /* Ensure that it is the default instance of BLE */ + if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { + return; + } + + ble.gap().onDisconnection(disconnectionCallback); + ble.gap().onConnection(connectionCallback); + + button.fall(buttonPressedCallback); + button.rise(buttonReleasedCallback); + + /* Setup primary service. */ + buttonServicePtr = new ButtonService(ble, false /* initial value for button pressed */); + + /* setup advertising */ + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); + ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); + ble.gap().setAdvertisingInterval(1000); /* 1000ms. */ + ble.gap().startAdvertising(); + +// printMacAddress(); +} + +void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) { + BLE &ble = BLE::Instance(); + eventQueue.call(Callback<void()>(&ble, &BLE::processEvents)); +} + +int main() +{ + eventQueue.call_every(500, blinkCallback); + + BLE &ble = BLE::Instance(); + ble.onEventsToProcess(scheduleBleEventsProcessing); + ble.init(bleInitComplete); + + eventQueue.dispatch_forever(); + + return 0; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Fri Jun 05 14:20:12 2020 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#367dbdf5145f4d6aa3e483c147fe7bda1ce23a36