ST Americas mbed Team / Mbed 2 deprecated Nucleo_BLE_UART

BLE UART example for Nucloe board and Bluetooth LE Nucleo shield.

Dependencies:   Nucleo_BLE_API Nucleo_BLE_BlueNRG mbed

Warning: Deprecated!

Supported drivers and applications can be found at this link.

main.cpp@1:69e44344edaa, 2014-12-24 (annotated)

Committer:
sjallouli
Date:
Wed Dec 24 18:05:05 2014 +0000
Revision:
1:69e44344edaa
Parent:
0:3e2ce2bb50b9 
Use USER_BUTTON interrupt to send data

; use ble.updateCharacteristicValue() to send data

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sjallouli 0:3e2ce2bb50b9 1 /* mbed Microcontroller Library
sjallouli 0:3e2ce2bb50b9 2 * Copyright (c) 2006-2013 ARM Limited
sjallouli 0:3e2ce2bb50b9 3 *
sjallouli 0:3e2ce2bb50b9 4 * Licensed under the Apache License, Version 2.0 (the "License");
sjallouli 0:3e2ce2bb50b9 5 * you may not use this file except in compliance with the License.
sjallouli 0:3e2ce2bb50b9 6 * You may obtain a copy of the License at
sjallouli 0:3e2ce2bb50b9 7 *
sjallouli 0:3e2ce2bb50b9 8 * http://www.apache.org/licenses/LICENSE-2.0
sjallouli 0:3e2ce2bb50b9 9 *
sjallouli 0:3e2ce2bb50b9 10 * Unless required by applicable law or agreed to in writing, software
sjallouli 0:3e2ce2bb50b9 11 * distributed under the License is distributed on an "AS IS" BASIS,
sjallouli 0:3e2ce2bb50b9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sjallouli 0:3e2ce2bb50b9 13 * See the License for the specific language governing permissions and
sjallouli 0:3e2ce2bb50b9 14 * limitations under the License.
sjallouli 0:3e2ce2bb50b9 15 */
sjallouli 0:3e2ce2bb50b9 16
sjallouli 0:3e2ce2bb50b9 17 #include "mbed.h"
sjallouli 0:3e2ce2bb50b9 18 #include "BLEDevice.h"
sjallouli 1:69e44344edaa 19 #include "DeviceInformationService.h"
sjallouli 0:3e2ce2bb50b9 20 #include "UARTService.h"
sjallouli 0:3e2ce2bb50b9 21 #include "Utils.h"
sjallouli 0:3e2ce2bb50b9 22
sjallouli 1:69e44344edaa 23 const static char DEVICE_NAME[] = "BlueNRG_UART";
sjallouli 1:69e44344edaa 24 uint8_t c = 'A';
sjallouli 0:3e2ce2bb50b9 25
sjallouli 1:69e44344edaa 26 extern bool user_button_pressed;
sjallouli 1:69e44344edaa 27 bool connected = false;
sjallouli 1:69e44344edaa 28 bool UpdatedEnabled = false;
sjallouli 0:3e2ce2bb50b9 29
sjallouli 0:3e2ce2bb50b9 30 BLEDevice ble;
sjallouli 1:69e44344edaa 31 UARTService *uartServicePtr;
sjallouli 0:3e2ce2bb50b9 32
sjallouli 1:69e44344edaa 33 /* Callback called when the device is disconnected */
sjallouli 0:3e2ce2bb50b9 34 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
sjallouli 0:3e2ce2bb50b9 35 {
sjallouli 1:69e44344edaa 36 DEBUG("Disconnected!\n\r");
sjallouli 1:69e44344edaa 37 DEBUG("Restarting the advertising process\n\r");
sjallouli 1:69e44344edaa 38
sjallouli 1:69e44344edaa 39 ble.startAdvertising();
sjallouli 1:69e44344edaa 40 connected = false;
sjallouli 0:3e2ce2bb50b9 41 }
sjallouli 0:3e2ce2bb50b9 42
sjallouli 1:69e44344edaa 43 /* Callback called when the device is connected */
sjallouli 0:3e2ce2bb50b9 44 void connectionCallback(Gap::Handle_t handle, const Gap::ConnectionParams_t *reason)
sjallouli 0:3e2ce2bb50b9 45 {
sjallouli 0:3e2ce2bb50b9 46 DEBUG("Connected\r\n");
sjallouli 1:69e44344edaa 47
sjallouli 0:3e2ce2bb50b9 48 connected = true;
sjallouli 0:3e2ce2bb50b9 49 }
sjallouli 0:3e2ce2bb50b9 50
sjallouli 1:69e44344edaa 51 /* Not working */
sjallouli 1:69e44344edaa 52 void onDataSent(unsigned count)
sjallouli 1:69e44344edaa 53 {
sjallouli 1:69e44344edaa 54 DEBUG("onDataSent\r\n");
sjallouli 1:69e44344edaa 55 }
sjallouli 1:69e44344edaa 56
sjallouli 1:69e44344edaa 57 /* Not working */
sjallouli 0:3e2ce2bb50b9 58 void onDataWritten(const GattCharacteristicWriteCBParams *params)
sjallouli 0:3e2ce2bb50b9 59 {
sjallouli 1:69e44344edaa 60 DEBUG("--onDataWritten\r\n");
sjallouli 1:69e44344edaa 61 DEBUG("---charHandle : %d\r\n", params->charHandle);
sjallouli 1:69e44344edaa 62 DEBUG("---getTXCharacteristicHandle: %d\r\n", uartServicePtr->getTXCharacteristicHandle());
sjallouli 1:69e44344edaa 63 DEBUG("---len: %d\r\n", params->len);
sjallouli 1:69e44344edaa 64
sjallouli 1:69e44344edaa 65 if ((uartServicePtr != NULL) && (params->charHandle == uartServicePtr->getTXCharacteristicHandle()))
sjallouli 1:69e44344edaa 66 {
sjallouli 1:69e44344edaa 67 DEBUG("received %u bytes\n\r", params->len);
sjallouli 1:69e44344edaa 68
sjallouli 1:69e44344edaa 69 if(params->data[0] == 0x00)
sjallouli 1:69e44344edaa 70 {
sjallouli 1:69e44344edaa 71 //Do something
sjallouli 0:3e2ce2bb50b9 72 }
sjallouli 1:69e44344edaa 73 else
sjallouli 1:69e44344edaa 74 {
sjallouli 1:69e44344edaa 75 //Do something else
sjallouli 1:69e44344edaa 76 }
sjallouli 1:69e44344edaa 77 }
sjallouli 1:69e44344edaa 78 }
sjallouli 1:69e44344edaa 79
sjallouli 1:69e44344edaa 80 /* Callback called when the client enables updates */
sjallouli 1:69e44344edaa 81 void onUpdatesEnabled(uint16_t attributeHandle)
sjallouli 1:69e44344edaa 82 {
sjallouli 1:69e44344edaa 83 DEBUG("**onUpdatesEnabled**\r\n");
sjallouli 1:69e44344edaa 84 UpdatedEnabled = true;
sjallouli 1:69e44344edaa 85 }
sjallouli 1:69e44344edaa 86
sjallouli 1:69e44344edaa 87 /* Callback called when the client disable updates */
sjallouli 1:69e44344edaa 88 void onUpdatesDisabled(uint16_t attributeHandle)
sjallouli 1:69e44344edaa 89 {
sjallouli 1:69e44344edaa 90 DEBUG("**onUpdatesDisabled**\r\n");
sjallouli 1:69e44344edaa 91 UpdatedEnabled = false;
sjallouli 0:3e2ce2bb50b9 92 }
sjallouli 0:3e2ce2bb50b9 93
sjallouli 1:69e44344edaa 94 /* Main */
sjallouli 0:3e2ce2bb50b9 95 int main(void)
sjallouli 0:3e2ce2bb50b9 96 {
sjallouli 1:69e44344edaa 97 DEBUG("Initialising \n\r");
sjallouli 1:69e44344edaa 98 ble.init();
sjallouli 1:69e44344edaa 99 #if 1
sjallouli 1:69e44344edaa 100 /* Set callback functions */
sjallouli 1:69e44344edaa 101 ble.onDisconnection(disconnectionCallback);
sjallouli 1:69e44344edaa 102 ble.onConnection(connectionCallback);
sjallouli 1:69e44344edaa 103 ble.onDataWritten(onDataWritten);
sjallouli 1:69e44344edaa 104 ble.onDataSent(onDataSent);
sjallouli 1:69e44344edaa 105 ble.onUpdatesEnabled(onUpdatesEnabled);
sjallouli 1:69e44344edaa 106 ble.onUpdatesDisabled(onUpdatesDisabled);
sjallouli 0:3e2ce2bb50b9 107
sjallouli 1:69e44344edaa 108 DeviceInformationService deviceInfo(ble, "ST", "Nucleo", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");
sjallouli 1:69e44344edaa 109 /* setup advertising */
sjallouli 1:69e44344edaa 110 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
sjallouli 1:69e44344edaa 111 ble.setAdvertisingType (GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
sjallouli 1:69e44344edaa 112
sjallouli 1:69e44344edaa 113 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME , (const uint8_t *)"BlueNRG_UART" , sizeof("BlueNRG_UART") - 1);
sjallouli 1:69e44344edaa 114 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
sjallouli 1:69e44344edaa 115 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME , (uint8_t *)DEVICE_NAME , sizeof(DEVICE_NAME));
sjallouli 1:69e44344edaa 116
sjallouli 1:69e44344edaa 117 /* Start advertising */
sjallouli 1:69e44344edaa 118 ble.setAdvertisingInterval(160);
sjallouli 1:69e44344edaa 119 ble.startAdvertising();
sjallouli 0:3e2ce2bb50b9 120
sjallouli 1:69e44344edaa 121 UARTService uartService(ble);
sjallouli 1:69e44344edaa 122 uartServicePtr = &uartService;
sjallouli 1:69e44344edaa 123
sjallouli 1:69e44344edaa 124
sjallouli 1:69e44344edaa 125 while (true)
sjallouli 1:69e44344edaa 126 {
sjallouli 1:69e44344edaa 127 ble.waitForEvent();
sjallouli 1:69e44344edaa 128
sjallouli 1:69e44344edaa 129 if(connected == true)
sjallouli 0:3e2ce2bb50b9 130 {
sjallouli 1:69e44344edaa 131 if ((user_button_pressed == true) && (UpdatedEnabled == true))
sjallouli 1:69e44344edaa 132 {
sjallouli 1:69e44344edaa 133 user_button_pressed = false;
sjallouli 1:69e44344edaa 134 DEBUG("Current Char: %c\r\n",c);
sjallouli 1:69e44344edaa 135 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), &c, 1);
sjallouli 1:69e44344edaa 136
sjallouli 1:69e44344edaa 137 c++;
sjallouli 1:69e44344edaa 138
sjallouli 1:69e44344edaa 139 if(c == ('Z'+1))
sjallouli 0:3e2ce2bb50b9 140 {
sjallouli 1:69e44344edaa 141 c = 'A';
sjallouli 0:3e2ce2bb50b9 142 }
sjallouli 1:69e44344edaa 143 }
sjallouli 0:3e2ce2bb50b9 144 }
sjallouli 1:69e44344edaa 145 }
sjallouli 1:69e44344edaa 146 #else
sjallouli 1:69e44344edaa 147 while (true)
sjallouli 1:69e44344edaa 148 {
sjallouli 1:69e44344edaa 149 if (user_button_pressed == true)
sjallouli 1:69e44344edaa 150 {
sjallouli 1:69e44344edaa 151 user_button_pressed = false;
sjallouli 1:69e44344edaa 152 DEBUG("Current Char: %c\r\n",c);
sjallouli 1:69e44344edaa 153
sjallouli 1:69e44344edaa 154 c++;
sjallouli 1:69e44344edaa 155
sjallouli 1:69e44344edaa 156 if(c == ('Z'+1))
sjallouli 1:69e44344edaa 157 {
sjallouli 1:69e44344edaa 158 c = 'A';
sjallouli 1:69e44344edaa 159 }
sjallouli 1:69e44344edaa 160 }
sjallouli 1:69e44344edaa 161 }
sjallouli 1:69e44344edaa 162 #endif
sjallouli 0:3e2ce2bb50b9 163 }