Delong Qi / Mbed 2 deprecated LinkNode_SimpleChatwithSerial

BLE Chat with Serial

Dependencies:   LinkNode_SimpleChat mbed nRF51822

Fork of nRF51822_SimpleChat by RedBearLab

main.cpp@3:17f2d639f37b, 2016-04-13 (annotated)

Committer:
helloqi
Date:
Wed Apr 13 12:45:39 2016 +0000
Revision:
3:17f2d639f37b
Parent:
2:4b66b69c7ecb 
8?	BLE Chat with Serial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RedBearLab 1:1c058e553423 1 /*
RedBearLab 0:cffe8ac1bdf0 2
RedBearLab 1:1c058e553423 3 Copyright (c) 2012-2014 RedBearLab
RedBearLab 1:1c058e553423 4
RedBearLab 1:1c058e553423 5 Permission is hereby granted, free of charge, to any person obtaining a copy of this software
RedBearLab 1:1c058e553423 6 and associated documentation files (the "Software"), to deal in the Software without restriction,
RedBearLab 1:1c058e553423 7 including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
RedBearLab 1:1c058e553423 8 and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
RedBearLab 1:1c058e553423 9 subject to the following conditions:
RedBearLab 1:1c058e553423 10 The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
RedBearLab 1:1c058e553423 11
RedBearLab 1:1c058e553423 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
RedBearLab 1:1c058e553423 13 INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
RedBearLab 1:1c058e553423 14 PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
RedBearLab 1:1c058e553423 15 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
RedBearLab 1:1c058e553423 16 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
RedBearLab 1:1c058e553423 17
RedBearLab 1:1c058e553423 18 */
RedBearLab 1:1c058e553423 19
RedBearLab 1:1c058e553423 20 /*
RedBearLab 1:1c058e553423 21 * The application works with the BLEController iOS/Android App.
RedBearLab 1:1c058e553423 22 * Type something from the Terminal to send
RedBearLab 1:1c058e553423 23 * to the BLEController App or vice verse.
RedBearLab 1:1c058e553423 24 * Characteristics received from App will print on Terminal.
RedBearLab 1:1c058e553423 25 */
RedBearLab 1:1c058e553423 26
RedBearLab 0:cffe8ac1bdf0 27 #include "mbed.h"
RedBearLab 2:4b66b69c7ecb 28 #include "ble/BLE.h"
RedBearLab 0:cffe8ac1bdf0 29
RedBearLab 0:cffe8ac1bdf0 30
RedBearLab 0:cffe8ac1bdf0 31 #define BLE_UUID_TXRX_SERVICE 0x0000 /**< The UUID of the Nordic UART Service. */
RedBearLab 0:cffe8ac1bdf0 32 #define BLE_UUID_TX_CHARACTERISTIC 0x0002 /**< The UUID of the TX Characteristic. */
RedBearLab 0:cffe8ac1bdf0 33 #define BLE_UUIDS_RX_CHARACTERISTIC 0x0003 /**< The UUID of the RX Characteristic. */
RedBearLab 0:cffe8ac1bdf0 34
RedBearLab 0:cffe8ac1bdf0 35 #define TXRX_BUF_LEN 20
RedBearLab 0:cffe8ac1bdf0 36
RedBearLab 2:4b66b69c7ecb 37 BLE ble;
RedBearLab 0:cffe8ac1bdf0 38
helloqi 3:17f2d639f37b 39 Serial pc(P0_23,P0_25);
helloqi 3:17f2d639f37b 40 DigitalOut LED_G(P0_19);
helloqi 3:17f2d639f37b 41 DigitalOut LED_R(P0_20);
RedBearLab 0:cffe8ac1bdf0 42
RedBearLab 0:cffe8ac1bdf0 43 // The Nordic UART Service
RedBearLab 0:cffe8ac1bdf0 44 static const uint8_t uart_base_uuid[] = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
RedBearLab 0:cffe8ac1bdf0 45 static const uint8_t uart_tx_uuid[] = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
RedBearLab 0:cffe8ac1bdf0 46 static const uint8_t uart_rx_uuid[] = {0x71, 0x3D, 0, 2, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
RedBearLab 0:cffe8ac1bdf0 47 static const uint8_t uart_base_uuid_rev[] = {0x1E, 0x94, 0x8D, 0xF1, 0x48, 0x31, 0x94, 0xBA, 0x75, 0x4C, 0x3E, 0x50, 0, 0, 0x3D, 0x71};
RedBearLab 0:cffe8ac1bdf0 48
RedBearLab 0:cffe8ac1bdf0 49 uint8_t txPayload[TXRX_BUF_LEN] = {0,};
RedBearLab 0:cffe8ac1bdf0 50 uint8_t rxPayload[TXRX_BUF_LEN] = {0,};
RedBearLab 0:cffe8ac1bdf0 51
RedBearLab 0:cffe8ac1bdf0 52 static uint8_t rx_buf[TXRX_BUF_LEN];
RedBearLab 0:cffe8ac1bdf0 53 static uint8_t rx_len=0;
RedBearLab 0:cffe8ac1bdf0 54
RedBearLab 0:cffe8ac1bdf0 55
RedBearLab 0:cffe8ac1bdf0 56 GattCharacteristic txCharacteristic (uart_tx_uuid, txPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
RedBearLab 0:cffe8ac1bdf0 57
RedBearLab 0:cffe8ac1bdf0 58 GattCharacteristic rxCharacteristic (uart_rx_uuid, rxPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
RedBearLab 0:cffe8ac1bdf0 59
RedBearLab 0:cffe8ac1bdf0 60 GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic};
RedBearLab 0:cffe8ac1bdf0 61
RedBearLab 0:cffe8ac1bdf0 62 GattService uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *));
RedBearLab 0:cffe8ac1bdf0 63
RedBearLab 0:cffe8ac1bdf0 64
RedBearLab 0:cffe8ac1bdf0 65
RedBearLab 0:cffe8ac1bdf0 66 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
RedBearLab 0:cffe8ac1bdf0 67 {
RedBearLab 0:cffe8ac1bdf0 68 pc.printf("Disconnected \r\n");
RedBearLab 0:cffe8ac1bdf0 69 pc.printf("Restart advertising \r\n");
helloqi 3:17f2d639f37b 70 ble.startAdvertising();
RedBearLab 0:cffe8ac1bdf0 71 }
RedBearLab 0:cffe8ac1bdf0 72
RedBearLab 2:4b66b69c7ecb 73 void WrittenHandler(const GattWriteCallbackParams *Handler)
RedBearLab 0:cffe8ac1bdf0 74 {
RedBearLab 0:cffe8ac1bdf0 75 uint8_t buf[TXRX_BUF_LEN];
RedBearLab 0:cffe8ac1bdf0 76 uint16_t bytesRead, index;
RedBearLab 0:cffe8ac1bdf0 77
RedBearLab 2:4b66b69c7ecb 78 if (Handler->handle == txCharacteristic.getValueAttribute().getHandle())
RedBearLab 0:cffe8ac1bdf0 79 {
RedBearLab 0:cffe8ac1bdf0 80 ble.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead);
RedBearLab 0:cffe8ac1bdf0 81 memset(txPayload, 0, TXRX_BUF_LEN);
RedBearLab 0:cffe8ac1bdf0 82 memcpy(txPayload, buf, TXRX_BUF_LEN);
RedBearLab 0:cffe8ac1bdf0 83 for(index=0; index<bytesRead; index++)
RedBearLab 0:cffe8ac1bdf0 84 {
helloqi 3:17f2d639f37b 85 pc.putc(txPayload[index]);
RedBearLab 0:cffe8ac1bdf0 86 }
RedBearLab 0:cffe8ac1bdf0 87 pc.printf("\r\n");
RedBearLab 0:cffe8ac1bdf0 88 }
RedBearLab 0:cffe8ac1bdf0 89 }
RedBearLab 0:cffe8ac1bdf0 90
RedBearLab 0:cffe8ac1bdf0 91 void uartCB(void)
RedBearLab 0:cffe8ac1bdf0 92 {
RedBearLab 0:cffe8ac1bdf0 93 while(pc.readable())
RedBearLab 0:cffe8ac1bdf0 94 {
RedBearLab 0:cffe8ac1bdf0 95 rx_buf[rx_len++] = pc.getc();
RedBearLab 0:cffe8ac1bdf0 96 if(rx_len>=20 || rx_buf[rx_len-1]=='\0' || rx_buf[rx_len-1]=='\n')
RedBearLab 0:cffe8ac1bdf0 97 {
RedBearLab 0:cffe8ac1bdf0 98 ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), rx_buf, rx_len);
RedBearLab 0:cffe8ac1bdf0 99 pc.printf("\r\n");
RedBearLab 0:cffe8ac1bdf0 100 rx_len = 0;
RedBearLab 0:cffe8ac1bdf0 101 break;
RedBearLab 0:cffe8ac1bdf0 102 }
RedBearLab 0:cffe8ac1bdf0 103 }
RedBearLab 0:cffe8ac1bdf0 104 }
RedBearLab 0:cffe8ac1bdf0 105
RedBearLab 0:cffe8ac1bdf0 106 int main(void)
RedBearLab 0:cffe8ac1bdf0 107 {
RedBearLab 0:cffe8ac1bdf0 108 ble.init();
RedBearLab 0:cffe8ac1bdf0 109 ble.onDisconnection(disconnectionCallback);
RedBearLab 0:cffe8ac1bdf0 110 ble.onDataWritten(WrittenHandler);
RedBearLab 0:cffe8ac1bdf0 111
RedBearLab 0:cffe8ac1bdf0 112 pc.baud(9600);
RedBearLab 0:cffe8ac1bdf0 113 pc.printf("SimpleChat Init \r\n");
RedBearLab 0:cffe8ac1bdf0 114
RedBearLab 0:cffe8ac1bdf0 115 pc.attach( uartCB , pc.RxIrq);
RedBearLab 0:cffe8ac1bdf0 116 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
RedBearLab 0:cffe8ac1bdf0 117 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
RedBearLab 0:cffe8ac1bdf0 118 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
RedBearLab 0:cffe8ac1bdf0 119 (const uint8_t *)"Biscuit", sizeof("Biscuit") - 1);
RedBearLab 0:cffe8ac1bdf0 120 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
RedBearLab 0:cffe8ac1bdf0 121 (const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid));
helloqi 3:17f2d639f37b 122 // 100ms; in multiples of 0.625ms.
RedBearLab 0:cffe8ac1bdf0 123 ble.setAdvertisingInterval(160);
RedBearLab 0:cffe8ac1bdf0 124
RedBearLab 0:cffe8ac1bdf0 125 ble.addService(uartService);
RedBearLab 0:cffe8ac1bdf0 126
RedBearLab 0:cffe8ac1bdf0 127 ble.startAdvertising();
RedBearLab 0:cffe8ac1bdf0 128 pc.printf("Advertising Start \r\n");
RedBearLab 0:cffe8ac1bdf0 129
helloqi 3:17f2d639f37b 130 LED_R=0;
helloqi 3:17f2d639f37b 131 LED_G=0;
helloqi 3:17f2d639f37b 132
RedBearLab 0:cffe8ac1bdf0 133 while(1)
RedBearLab 0:cffe8ac1bdf0 134 {
RedBearLab 0:cffe8ac1bdf0 135 ble.waitForEvent();
RedBearLab 0:cffe8ac1bdf0 136 }
RedBearLab 0:cffe8ac1bdf0 137 }
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