StepSense / Mbed 2 deprecated BLE_UART1

Basic BLE comm Control Led using On/Off Command

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_LoopbackUART by Bluetooth Low Energy

main.cpp@10:d4cd8edc6216, 2014-11-09 (annotated)

Committer:
adarsh5723
Date:
Sun Nov 09 21:05:20 2014 +0000
Revision:
10:d4cd8edc6216
Parent:
6:e0fc9072e853
Child:
11:4f9451eaca3d
Basic BLE communication.; Control LED using On/Off command

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:e910d9bb040f 1 /* mbed Microcontroller Library
yihui 0:e910d9bb040f 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:e910d9bb040f 3 *
yihui 0:e910d9bb040f 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:e910d9bb040f 5 * you may not use this file except in compliance with the License.
yihui 0:e910d9bb040f 6 * You may obtain a copy of the License at
yihui 0:e910d9bb040f 7 *
yihui 0:e910d9bb040f 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:e910d9bb040f 9 *
yihui 0:e910d9bb040f 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:e910d9bb040f 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:e910d9bb040f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:e910d9bb040f 13 * See the License for the specific language governing permissions and
yihui 0:e910d9bb040f 14 * limitations under the License.
yihui 0:e910d9bb040f 15 */
yihui 0:e910d9bb040f 16
yihui 0:e910d9bb040f 17 #include "mbed.h"
Rohit Grover 2:e060367b9024 18 #include "BLEDevice.h"
adarsh5723 10:d4cd8edc6216 19 #include "Servo.h"
adarsh5723 10:d4cd8edc6216 20 #include <string.h>
yihui 0:e910d9bb040f 21
rgrover1 6:e0fc9072e853 22 #include "UARTService.h"
yihui 0:e910d9bb040f 23
adarsh5723 10:d4cd8edc6216 24 #define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console;
Rohit Grover 2:e060367b9024 25 * it will have an impact on code-size and power consumption. */
yihui 0:e910d9bb040f 26
Rohit Grover 2:e060367b9024 27 #if NEED_CONSOLE_OUTPUT
rgrover1 6:e0fc9072e853 28 #define DEBUG(...) { printf(__VA_ARGS__); }
yihui 0:e910d9bb040f 29 #else
Rohit Grover 2:e060367b9024 30 #define DEBUG(...) /* nothing */
Rohit Grover 2:e060367b9024 31 #endif /* #if NEED_CONSOLE_OUTPUT */
yihui 0:e910d9bb040f 32
Rohit Grover 2:e060367b9024 33 BLEDevice ble;
Rohit Grover 2:e060367b9024 34 DigitalOut led1(LED1);
adarsh5723 10:d4cd8edc6216 35 DigitalOut led2(LED2);
adarsh5723 10:d4cd8edc6216 36 DigitalOut pwm_out(P0_30);
adarsh5723 10:d4cd8edc6216 37
yihui 0:e910d9bb040f 38
rgrover1 6:e0fc9072e853 39 UARTService *uartServicePtr;
yihui 0:e910d9bb040f 40
rgrover1 5:4bc41267a03a 41 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
yihui 0:e910d9bb040f 42 {
Rohit Grover 2:e060367b9024 43 DEBUG("Disconnected!\n\r");
Rohit Grover 2:e060367b9024 44 DEBUG("Restarting the advertising process\n\r");
Rohit Grover 2:e060367b9024 45 ble.startAdvertising();
Rohit Grover 2:e060367b9024 46 }
yihui 0:e910d9bb040f 47
rgrover1 6:e0fc9072e853 48 void onDataWritten(const GattCharacteristicWriteCBParams *params)
yihui 0:e910d9bb040f 49 {
adarsh5723 10:d4cd8edc6216 50 char *str = 0;
adarsh5723 10:d4cd8edc6216 51 int count = 0;
adarsh5723 10:d4cd8edc6216 52
rgrover1 6:e0fc9072e853 53 if ((uartServicePtr != NULL) && (params->charHandle == uartServicePtr->getTXCharacteristicHandle())) {
rgrover1 5:4bc41267a03a 54 uint16_t bytesRead = params->len;
rgrover1 5:4bc41267a03a 55 DEBUG("received %u bytes\n\r", bytesRead);
adarsh5723 10:d4cd8edc6216 56
adarsh5723 10:d4cd8edc6216 57 str = (char *)malloc((sizeof(char) * bytesRead) + 1);
adarsh5723 10:d4cd8edc6216 58 while(count <= bytesRead)
adarsh5723 10:d4cd8edc6216 59 {
adarsh5723 10:d4cd8edc6216 60 *(str + count) = *(params->data + count);
adarsh5723 10:d4cd8edc6216 61 count++;
adarsh5723 10:d4cd8edc6216 62 }
adarsh5723 10:d4cd8edc6216 63 count--;
adarsh5723 10:d4cd8edc6216 64 *(str + count) = '\0';
adarsh5723 10:d4cd8edc6216 65 DEBUG("payload = %s\n\r",str);
adarsh5723 10:d4cd8edc6216 66 if (strncmp(str,"On",bytesRead) == 0)
adarsh5723 10:d4cd8edc6216 67 led2 = 1;
adarsh5723 10:d4cd8edc6216 68 else
adarsh5723 10:d4cd8edc6216 69 led2 = 0;
adarsh5723 10:d4cd8edc6216 70 free(str);
adarsh5723 10:d4cd8edc6216 71 strcpy((char *)params->data,"SPOPOPOSP");
rgrover1 6:e0fc9072e853 72 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead);
yihui 0:e910d9bb040f 73 }
Rohit Grover 2:e060367b9024 74 }
yihui 0:e910d9bb040f 75
Rohit Grover 2:e060367b9024 76 void periodicCallback(void)
Rohit Grover 2:e060367b9024 77 {
rgrover1 6:e0fc9072e853 78 led1 = !led1;
Rohit Grover 2:e060367b9024 79 }
yihui 0:e910d9bb040f 80
yihui 0:e910d9bb040f 81 int main(void)
yihui 0:e910d9bb040f 82 {
Rohit Grover 2:e060367b9024 83 led1 = 1;
Rohit Grover 2:e060367b9024 84 Ticker ticker;
Rohit Grover 2:e060367b9024 85 ticker.attach(periodicCallback, 1);
yihui 0:e910d9bb040f 86
Rohit Grover 2:e060367b9024 87 DEBUG("Initialising the nRF51822\n\r");
Rohit Grover 2:e060367b9024 88 ble.init();
Rohit Grover 2:e060367b9024 89 ble.onDisconnection(disconnectionCallback);
Rohit Grover 2:e060367b9024 90 ble.onDataWritten(onDataWritten);
yihui 0:e910d9bb040f 91
Rohit Grover 2:e060367b9024 92 /* setup advertising */
Rohit Grover 2:e060367b9024 93 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
Rohit Grover 2:e060367b9024 94 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
Rohit Grover 2:e060367b9024 95 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
adarsh5723 10:d4cd8edc6216 96 (const uint8_t *)"AdarshBLE UART", sizeof("AdarshBLE UART") - 1);
Rohit Grover 2:e060367b9024 97 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
rgrover1 6:e0fc9072e853 98 (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
yihui 0:e910d9bb040f 99
Rohit Grover 2:e060367b9024 100 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
Rohit Grover 2:e060367b9024 101 ble.startAdvertising();
yihui 0:e910d9bb040f 102
rgrover1 6:e0fc9072e853 103 UARTService uartService(ble);
rgrover1 6:e0fc9072e853 104 uartServicePtr = &uartService;
yihui 0:e910d9bb040f 105
Rohit Grover 2:e060367b9024 106 while (true) {
Rohit Grover 2:e060367b9024 107 ble.waitForEvent();
yihui 0:e910d9bb040f 108 }
yihui 0:e910d9bb040f 109 }