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This is a demo for controlling your ShieldBot using your mobile phone
Dependencies: BLE_API ShieldBot_v12 mbed nRF51822
Fork of BLE_LoopbackUART by
main.cpp@5:4bc41267a03a, 2014-09-02 (annotated)
- Committer:
- rgrover1
- Date:
- Tue Sep 02 16:32:58 2014 +0000
- Revision:
- 5:4bc41267a03a
- Parent:
- 2:e060367b9024
- Child:
- 6:e0fc9072e853
updating underlying libraries.
Who changed what in which revision?
User | Revision | Line number | New 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" |
yihui | 0:e910d9bb040f | 19 | |
Rohit Grover |
2:e060367b9024 | 20 | #define BLE_UUID_NUS_SERVICE 0x0001 /**< The UUID of the Nordic UART Service. */ |
Rohit Grover |
2:e060367b9024 | 21 | #define BLE_UUID_NUS_TX_CHARACTERISTIC 0x0002 /**< The UUID of the TX Characteristic. */ |
Rohit Grover |
2:e060367b9024 | 22 | #define BLE_UUID_NUS_RX_CHARACTERISTIC 0x0003 /**< The UUID of the RX Characteristic. */ |
yihui | 0:e910d9bb040f | 23 | |
rgrover1 | 5:4bc41267a03a | 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 |
Rohit Grover |
2:e060367b9024 | 28 | Serial pc(USBTX, USBRX); |
Rohit Grover |
2:e060367b9024 | 29 | #define DEBUG(...) { pc.printf(__VA_ARGS__); } |
yihui | 0:e910d9bb040f | 30 | #else |
Rohit Grover |
2:e060367b9024 | 31 | #define DEBUG(...) /* nothing */ |
Rohit Grover |
2:e060367b9024 | 32 | #endif /* #if NEED_CONSOLE_OUTPUT */ |
yihui | 0:e910d9bb040f | 33 | |
Rohit Grover |
2:e060367b9024 | 34 | BLEDevice ble; |
Rohit Grover |
2:e060367b9024 | 35 | DigitalOut led1(LED1); |
yihui | 0:e910d9bb040f | 36 | |
yihui | 0:e910d9bb040f | 37 | // The Nordic UART Service |
Rohit Grover |
2:e060367b9024 | 38 | static const uint8_t uart_base_uuid[] = {0x6e, 0x40, 0x00, 0x01, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e}; |
Rohit Grover |
2:e060367b9024 | 39 | static const uint8_t uart_tx_uuid[] = {0x6e, 0x40, 0x00, 0x02, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e}; |
Rohit Grover |
2:e060367b9024 | 40 | static const uint8_t uart_rx_uuid[] = {0x6e, 0x40, 0x00, 0x03, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e}; |
Rohit Grover |
2:e060367b9024 | 41 | static const uint8_t uart_base_uuid_rev[] = {0x9e, 0xca, 0xdc, 0x24, 0x0e, 0xe5, 0xa9, 0xe0, 0x93, 0xf3, 0xa3, 0xb5, 0x01, 0x00, 0x40, 0x6e}; |
rgrover1 | 5:4bc41267a03a | 42 | |
rgrover1 | 5:4bc41267a03a | 43 | static const uint8_t SIZEOF_TX_RX_BUFFER = 128; |
rgrover1 | 5:4bc41267a03a | 44 | uint8_t rxPayload[SIZEOF_TX_RX_BUFFER] = {0,}; |
rgrover1 | 5:4bc41267a03a | 45 | uint8_t txPayload[SIZEOF_TX_RX_BUFFER] = {0,}; |
rgrover1 | 5:4bc41267a03a | 46 | GattCharacteristic rxCharacteristic (uart_tx_uuid, rxPayload, 1, SIZEOF_TX_RX_BUFFER, |
Rohit Grover |
2:e060367b9024 | 47 | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE); |
rgrover1 | 5:4bc41267a03a | 48 | GattCharacteristic txCharacteristic (uart_rx_uuid, txPayload, 1, SIZEOF_TX_RX_BUFFER, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); |
rgrover1 | 5:4bc41267a03a | 49 | GattCharacteristic *uartChars[] = {&rxCharacteristic, &txCharacteristic}; |
Rohit Grover |
2:e060367b9024 | 50 | GattService uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *)); |
yihui | 0:e910d9bb040f | 51 | |
rgrover1 | 5:4bc41267a03a | 52 | void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) |
yihui | 0:e910d9bb040f | 53 | { |
Rohit Grover |
2:e060367b9024 | 54 | DEBUG("Disconnected!\n\r"); |
Rohit Grover |
2:e060367b9024 | 55 | DEBUG("Restarting the advertising process\n\r"); |
Rohit Grover |
2:e060367b9024 | 56 | ble.startAdvertising(); |
Rohit Grover |
2:e060367b9024 | 57 | } |
yihui | 0:e910d9bb040f | 58 | |
rgrover1 | 5:4bc41267a03a | 59 | void onDataWritten(uint16_t charHandle, const GattCharacteristicWriteCBParams *params) |
yihui | 0:e910d9bb040f | 60 | { |
rgrover1 | 5:4bc41267a03a | 61 | if (charHandle == rxCharacteristic.getValueAttribute().getHandle()) { |
rgrover1 | 5:4bc41267a03a | 62 | uint16_t bytesRead = params->len; |
rgrover1 | 5:4bc41267a03a | 63 | DEBUG("received %u bytes\n\r", bytesRead); |
rgrover1 | 5:4bc41267a03a | 64 | if (bytesRead < sizeof(rxPayload)) { |
rgrover1 | 5:4bc41267a03a | 65 | memcpy(rxPayload, params->data, bytesRead); |
rgrover1 | 5:4bc41267a03a | 66 | rxPayload[bytesRead] = 0; |
rgrover1 | 5:4bc41267a03a | 67 | } |
rgrover1 | 5:4bc41267a03a | 68 | DEBUG("ECHO: %s\n\r", (char *)rxPayload); |
rgrover1 | 5:4bc41267a03a | 69 | ble.updateCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), rxPayload, bytesRead); |
yihui | 0:e910d9bb040f | 70 | } |
Rohit Grover |
2:e060367b9024 | 71 | } |
yihui | 0:e910d9bb040f | 72 | |
Rohit Grover |
2:e060367b9024 | 73 | void periodicCallback(void) |
Rohit Grover |
2:e060367b9024 | 74 | { |
Rohit Grover |
2:e060367b9024 | 75 | led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ |
Rohit Grover |
2:e060367b9024 | 76 | } |
yihui | 0:e910d9bb040f | 77 | |
yihui | 0:e910d9bb040f | 78 | int main(void) |
yihui | 0:e910d9bb040f | 79 | { |
Rohit Grover |
2:e060367b9024 | 80 | led1 = 1; |
Rohit Grover |
2:e060367b9024 | 81 | Ticker ticker; |
Rohit Grover |
2:e060367b9024 | 82 | ticker.attach(periodicCallback, 1); |
yihui | 0:e910d9bb040f | 83 | |
Rohit Grover |
2:e060367b9024 | 84 | DEBUG("Initialising the nRF51822\n\r"); |
Rohit Grover |
2:e060367b9024 | 85 | ble.init(); |
Rohit Grover |
2:e060367b9024 | 86 | ble.onDisconnection(disconnectionCallback); |
Rohit Grover |
2:e060367b9024 | 87 | ble.onDataWritten(onDataWritten); |
yihui | 0:e910d9bb040f | 88 | |
Rohit Grover |
2:e060367b9024 | 89 | /* setup advertising */ |
Rohit Grover |
2:e060367b9024 | 90 | ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); |
Rohit Grover |
2:e060367b9024 | 91 | ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
Rohit Grover |
2:e060367b9024 | 92 | ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, |
Rohit Grover |
2:e060367b9024 | 93 | (const uint8_t *)"BLE UART", sizeof("BLE UART") - 1); |
Rohit Grover |
2:e060367b9024 | 94 | ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, |
Rohit Grover |
2:e060367b9024 | 95 | (const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid)); |
yihui | 0:e910d9bb040f | 96 | |
Rohit Grover |
2:e060367b9024 | 97 | ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ |
Rohit Grover |
2:e060367b9024 | 98 | ble.startAdvertising(); |
yihui | 0:e910d9bb040f | 99 | |
Rohit Grover |
2:e060367b9024 | 100 | ble.addService(uartService); |
yihui | 0:e910d9bb040f | 101 | |
Rohit Grover |
2:e060367b9024 | 102 | while (true) { |
Rohit Grover |
2:e060367b9024 | 103 | ble.waitForEvent(); |
yihui | 0:e910d9bb040f | 104 | } |
yihui | 0:e910d9bb040f | 105 | } |