Jan Jongboom / Mbed 2 deprecated BLE_LED_Button

LED and Button for BLE workshop (TinyBLE)

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_LED by Bluetooth Low Energy

main.cpp@12:7eebfdfdd892, 2016-05-02 (annotated)

Committer:
janjongboom
Date:
Mon May 02 09:09:59 2016 +0000
Revision:
12:7eebfdfdd892
Parent:
11:5e43f35f64a8 
Change interval to 50 ms. due to bug in evothings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 0:ed5c53845de7 1 /* mbed Microcontroller Library
rgrover1 0:ed5c53845de7 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 0:ed5c53845de7 3 *
rgrover1 0:ed5c53845de7 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 0:ed5c53845de7 5 * you may not use this file except in compliance with the License.
rgrover1 0:ed5c53845de7 6 * You may obtain a copy of the License at
rgrover1 0:ed5c53845de7 7 *
rgrover1 0:ed5c53845de7 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 0:ed5c53845de7 9 *
rgrover1 0:ed5c53845de7 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 0:ed5c53845de7 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 0:ed5c53845de7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 0:ed5c53845de7 13 * See the License for the specific language governing permissions and
rgrover1 0:ed5c53845de7 14 * limitations under the License.
rgrover1 0:ed5c53845de7 15 */
rgrover1 0:ed5c53845de7 16
rgrover1 0:ed5c53845de7 17 #include "mbed.h"
andresag 10:af76616e4d75 18 #include "ble/BLE.h"
rgrover1 0:ed5c53845de7 19 #include "LEDService.h"
janjongboom 11:5e43f35f64a8 20 #include "ButtonService.h"
rgrover1 0:ed5c53845de7 21
janjongboom 11:5e43f35f64a8 22 #define LED_ON 0
janjongboom 11:5e43f35f64a8 23 #define LED_OFF 1
rgrover1 0:ed5c53845de7 24
janjongboom 11:5e43f35f64a8 25 DigitalOut alivenessLED(LED1, LED_OFF); // green
janjongboom 11:5e43f35f64a8 26 DigitalOut actuatedLED(LED2, LED_OFF); // red
janjongboom 11:5e43f35f64a8 27 InterruptIn button(BUTTON1);
janjongboom 11:5e43f35f64a8 28
janjongboom 11:5e43f35f64a8 29 const static char DEVICE_NAME[] = "MY_BLE_DEVICE";
janjongboom 11:5e43f35f64a8 30 static const uint16_t uuid16_list[] = {
janjongboom 11:5e43f35f64a8 31 LEDService::LED_SERVICE_UUID,
janjongboom 11:5e43f35f64a8 32 ButtonService::BUTTON_SERVICE_UUID
janjongboom 11:5e43f35f64a8 33 };
rgrover1 0:ed5c53845de7 34
rgrover1 0:ed5c53845de7 35 LEDService *ledServicePtr;
janjongboom 11:5e43f35f64a8 36 ButtonService *buttonServicePtr;
rgrover1 0:ed5c53845de7 37
andresag 10:af76616e4d75 38 Ticker ticker;
andresag 10:af76616e4d75 39
janjongboom 11:5e43f35f64a8 40 void periodicCallback(void)
janjongboom 11:5e43f35f64a8 41 {
janjongboom 11:5e43f35f64a8 42 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
janjongboom 11:5e43f35f64a8 43 }
janjongboom 11:5e43f35f64a8 44
rgrover1 9:35a5a5796286 45 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
rgrover1 0:ed5c53845de7 46 {
andresag 10:af76616e4d75 47 BLE::Instance().gap().startAdvertising();
janjongboom 11:5e43f35f64a8 48
janjongboom 11:5e43f35f64a8 49 ticker.attach(periodicCallback, 1);
rgrover1 0:ed5c53845de7 50 }
rgrover1 0:ed5c53845de7 51
janjongboom 11:5e43f35f64a8 52 void connectionCallback(const Gap::ConnectionCallbackParams_t * params)
rgrover1 0:ed5c53845de7 53 {
janjongboom 11:5e43f35f64a8 54 // stop blinking when we connect
janjongboom 11:5e43f35f64a8 55 ticker.detach();
janjongboom 11:5e43f35f64a8 56 // also put the led off
janjongboom 11:5e43f35f64a8 57 alivenessLED = LED_OFF;
rgrover1 0:ed5c53845de7 58 }
rgrover1 0:ed5c53845de7 59
rgrover1 0:ed5c53845de7 60 /**
rgrover1 0:ed5c53845de7 61 * This callback allows the LEDService to receive updates to the ledState Characteristic.
rgrover1 0:ed5c53845de7 62 *
rgrover1 0:ed5c53845de7 63 * @param[in] params
rgrover1 0:ed5c53845de7 64 * Information about the characterisitc being updated.
rgrover1 0:ed5c53845de7 65 */
rgrover1 7:c9271599ec5f 66 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
janjongboom 11:5e43f35f64a8 67 // handle corresponds to the characteristic being written
janjongboom 11:5e43f35f64a8 68 // then we can read data to get a buffer of the actual data
rgrover1 7:c9271599ec5f 69 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
janjongboom 11:5e43f35f64a8 70 // When writing 1 -> turn LED on, 0 -> turn LED off
janjongboom 11:5e43f35f64a8 71 char val = params->data[0];
janjongboom 11:5e43f35f64a8 72 actuatedLED = val == 1 ? LED_ON : LED_OFF;
rgrover1 0:ed5c53845de7 73 }
rgrover1 0:ed5c53845de7 74 }
rgrover1 0:ed5c53845de7 75
andresag 10:af76616e4d75 76 /**
andresag 10:af76616e4d75 77 * This function is called when the ble initialization process has failed
andresag 10:af76616e4d75 78 */
andresag 10:af76616e4d75 79 void onBleInitError(BLE &ble, ble_error_t error)
rgrover1 0:ed5c53845de7 80 {
janjongboom 11:5e43f35f64a8 81 // blink fast when we encountered an error
janjongboom 11:5e43f35f64a8 82 ticker.attach(periodicCallback, 0.2);
andresag 10:af76616e4d75 83 }
rgrover1 0:ed5c53845de7 84
andresag 10:af76616e4d75 85 /**
andresag 10:af76616e4d75 86 * Callback triggered when the ble initialization process has finished
andresag 10:af76616e4d75 87 */
andresag 10:af76616e4d75 88 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
andresag 10:af76616e4d75 89 {
andresag 10:af76616e4d75 90 BLE& ble = params->ble;
andresag 10:af76616e4d75 91 ble_error_t error = params->error;
rgrover1 0:ed5c53845de7 92
andresag 10:af76616e4d75 93 if (error != BLE_ERROR_NONE) {
andresag 10:af76616e4d75 94 /* In case of error, forward the error handling to onBleInitError */
andresag 10:af76616e4d75 95 onBleInitError(ble, error);
andresag 10:af76616e4d75 96 return;
andresag 10:af76616e4d75 97 }
andresag 10:af76616e4d75 98
andresag 10:af76616e4d75 99 /* Ensure that it is the default instance of BLE */
andresag 10:af76616e4d75 100 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
andresag 10:af76616e4d75 101 return;
andresag 10:af76616e4d75 102 }
andresag 10:af76616e4d75 103
rgrover1 7:c9271599ec5f 104 ble.gap().onDisconnection(disconnectionCallback);
janjongboom 11:5e43f35f64a8 105 ble.gap().onConnection(connectionCallback);
rgrover1 7:c9271599ec5f 106 ble.gattServer().onDataWritten(onDataWrittenCallback);
rgrover1 0:ed5c53845de7 107
janjongboom 11:5e43f35f64a8 108 // Begin - If you add a new service, add it here!
janjongboom 11:5e43f35f64a8 109 ledServicePtr = new LEDService(ble, false /* inital value */);
janjongboom 11:5e43f35f64a8 110 buttonServicePtr = new ButtonService(ble, false /* initial value */);
janjongboom 11:5e43f35f64a8 111 // End - If you add a new service, add it here!
rgrover1 0:ed5c53845de7 112
rgrover1 7:c9271599ec5f 113 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 7:c9271599ec5f 114 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1 7:c9271599ec5f 115 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1 7:c9271599ec5f 116 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
janjongboom 12:7eebfdfdd892 117 ble.gap().setAdvertisingInterval(50); /* 50ms. Hack for EvoThings. */
rgrover1 7:c9271599ec5f 118 ble.gap().startAdvertising();
andresag 10:af76616e4d75 119 }
andresag 10:af76616e4d75 120
janjongboom 11:5e43f35f64a8 121 void button_down() {
janjongboom 11:5e43f35f64a8 122 if (!buttonServicePtr) return;
janjongboom 11:5e43f35f64a8 123 buttonServicePtr->updateButtonState(true);
janjongboom 11:5e43f35f64a8 124 }
janjongboom 11:5e43f35f64a8 125 void button_up() {
janjongboom 11:5e43f35f64a8 126 if (!buttonServicePtr) return;
janjongboom 11:5e43f35f64a8 127 buttonServicePtr->updateButtonState(false);
janjongboom 11:5e43f35f64a8 128 }
janjongboom 11:5e43f35f64a8 129
andresag 10:af76616e4d75 130 int main(void)
andresag 10:af76616e4d75 131 {
janjongboom 11:5e43f35f64a8 132 // Blink the green LED!
janjongboom 11:5e43f35f64a8 133 ticker.attach(periodicCallback, 1);
janjongboom 11:5e43f35f64a8 134
janjongboom 11:5e43f35f64a8 135 button.fall(&button_down);
janjongboom 11:5e43f35f64a8 136 button.rise(&button_up);
janjongboom 11:5e43f35f64a8 137
andresag 10:af76616e4d75 138 BLE &ble = BLE::Instance();
andresag 10:af76616e4d75 139 ble.init(bleInitComplete);
andresag 10:af76616e4d75 140
andresag 10:af76616e4d75 141 /* SpinWait for initialization to complete. This is necessary because the
andresag 10:af76616e4d75 142 * BLE object is used in the main loop below. */
andresag 10:af76616e4d75 143 while (ble.hasInitialized() == false) { /* spin loop */ }
rgrover1 0:ed5c53845de7 144
rgrover1 0:ed5c53845de7 145 while (true) {
rgrover1 0:ed5c53845de7 146 ble.waitForEvent();
rgrover1 0:ed5c53845de7 147 }
rgrover1 0:ed5c53845de7 148 }