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BlynkSimpleRedBear_Duo_BLE.h
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BlynkSimpleRedBear_Duo_BLE.h
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/**
* @file BlynkSimpleRedBear_Duo_BLE.h
* @author Volodymyr Shymanskyy
* @license This project is released under the MIT License (MIT)
* @copyright Copyright (c) 2015 Volodymyr Shymanskyy
* @date May 2016
* @brief
*
*/
#ifndef BlynkSimpleRedBear_Duo_BLE_h
#define BlynkSimpleRedBear_Duo_BLE_h
#ifndef BLYNK_INFO_CONNECTION
#define BLYNK_INFO_CONNECTION "RB_Duo_BLE"
#endif
#define BLYNK_NO_YIELD
#define BLYNK_SEND_ATOMIC
#define BLYNK_SEND_CHUNK 20
//#define BLYNK_SEND_THROTTLE 20
#include <BlynkApiArduino.h>
#include <Blynk/BlynkProtocol.h>
#include <utility/BlynkFifo2.h>
/*
* BLE peripheral preferred connection parameters:
* - Minimum connection interval = MIN_CONN_INTERVAL * 1.25 ms, where MIN_CONN_INTERVAL ranges from 0x0006 to 0x0C80
* - Maximum connection interval = MAX_CONN_INTERVAL * 1.25 ms, where MAX_CONN_INTERVAL ranges from 0x0006 to 0x0C80
* - The SLAVE_LATENCY ranges from 0x0000 to 0x03E8
* - Connection supervision timeout = CONN_SUPERVISION_TIMEOUT * 10 ms, where CONN_SUPERVISION_TIMEOUT ranges from 0x000A to 0x0C80
*/
#define MIN_CONN_INTERVAL 0x0028 // 50ms.
#define MAX_CONN_INTERVAL 0x0190 // 500ms.
#define SLAVE_LATENCY 0x0000 // No slave latency.
#define CONN_SUPERVISION_TIMEOUT 0x03E8 // 10s.
// Learn about appearance: http://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.gap.appearance.xml
#define BLE_PERIPHERAL_APPEARANCE BLE_APPEARANCE_UNKNOWN
#define BLE_DEVICE_NAME "Blynk"
#define CHARACTERISTIC1_MAX_LEN 20
#define CHARACTERISTIC2_MAX_LEN 20
/******************************************************
* Variable Definitions
******************************************************/
static uint8_t service1_uuid[16] = { 0x71,0x3d,0x00,0x00,0x50,0x3e,0x4c,0x75,0xba,0x94,0x31,0x48,0xf1,0x8d,0x94,0x1e };
static uint8_t service1_tx_uuid[16] = { 0x71,0x3d,0x00,0x03,0x50,0x3e,0x4c,0x75,0xba,0x94,0x31,0x48,0xf1,0x8d,0x94,0x1e };
static uint8_t service1_rx_uuid[16] = { 0x71,0x3d,0x00,0x02,0x50,0x3e,0x4c,0x75,0xba,0x94,0x31,0x48,0xf1,0x8d,0x94,0x1e };
// GAP and GATT characteristics value
static uint8_t appearance[2] = {
LOW_BYTE(BLE_PERIPHERAL_APPEARANCE),
HIGH_BYTE(BLE_PERIPHERAL_APPEARANCE)
};
static uint8_t change[4] = {
0x00, 0x00, 0xFF, 0xFF
};
static uint8_t conn_param[8] = {
LOW_BYTE(MIN_CONN_INTERVAL), HIGH_BYTE(MIN_CONN_INTERVAL),
LOW_BYTE(MAX_CONN_INTERVAL), HIGH_BYTE(MAX_CONN_INTERVAL),
LOW_BYTE(SLAVE_LATENCY), HIGH_BYTE(SLAVE_LATENCY),
LOW_BYTE(CONN_SUPERVISION_TIMEOUT), HIGH_BYTE(CONN_SUPERVISION_TIMEOUT)
};
/*
* BLE peripheral advertising parameters:
* - advertising_interval_min: [0x0020, 0x4000], default: 0x0800, unit: 0.625 msec
* - advertising_interval_max: [0x0020, 0x4000], default: 0x0800, unit: 0.625 msec
* - advertising_type:
* BLE_GAP_ADV_TYPE_ADV_IND
* BLE_GAP_ADV_TYPE_ADV_DIRECT_IND
* BLE_GAP_ADV_TYPE_ADV_SCAN_IND
* BLE_GAP_ADV_TYPE_ADV_NONCONN_IND
* - own_address_type:
* BLE_GAP_ADDR_TYPE_PUBLIC
* BLE_GAP_ADDR_TYPE_RANDOM
* - advertising_channel_map:
* BLE_GAP_ADV_CHANNEL_MAP_37
* BLE_GAP_ADV_CHANNEL_MAP_38
* BLE_GAP_ADV_CHANNEL_MAP_39
* BLE_GAP_ADV_CHANNEL_MAP_ALL
* - filter policies:
* BLE_GAP_ADV_FP_ANY
* BLE_GAP_ADV_FP_FILTER_SCANREQ
* BLE_GAP_ADV_FP_FILTER_CONNREQ
* BLE_GAP_ADV_FP_FILTER_BOTH
*
* Note: If the advertising_type is set to BLE_GAP_ADV_TYPE_ADV_SCAN_IND or BLE_GAP_ADV_TYPE_ADV_NONCONN_IND,
* the advertising_interval_min and advertising_interval_max should not be set to less than 0x00A0.
*/
static advParams_t adv_params = {
.adv_int_min = 0x0030,
.adv_int_max = 0x0030,
.adv_type = BLE_GAP_ADV_TYPE_ADV_IND,
.dir_addr_type = BLE_GAP_ADDR_TYPE_PUBLIC,
.dir_addr = {0,0,0,0,0,0},
.channel_map = BLE_GAP_ADV_CHANNEL_MAP_ALL,
.filter_policy = BLE_GAP_ADV_FP_ANY
};
static uint8_t adv_data[] = {
0x02,
BLE_GAP_AD_TYPE_FLAGS,
BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE,
0x08,
BLE_GAP_AD_TYPE_SHORT_LOCAL_NAME,
'B','i','s','c','u','i','t',
0x11,
BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_COMPLETE,
0x1e,0x94,0x8d,0xf1,0x48,0x31,0x94,0xba,0x75,0x4c,0x3e,0x50,0x00,0x00,0x3d,0x71
};
static uint16_t character1_handle = 0x0000;
static uint16_t character2_handle = 0x0000;
static uint16_t character3_handle = 0x0000;
static uint8_t characteristic1_data[CHARACTERISTIC1_MAX_LEN] = { 0x01 };
static uint8_t characteristic2_data[CHARACTERISTIC2_MAX_LEN] = { 0x00 };
class BlynkTransportRedBearDuoBLE
{
public:
BlynkTransportRedBearDuoBLE()
: mConn (false)
{}
void begin() {
instance = this;
//ble.debugLogger(true);
// Initialize ble_stack.
ble.init();
// Register BLE callback functions
ble.onConnectedCallback(deviceConnectedCallback);
ble.onDisconnectedCallback(deviceDisconnectedCallback);
ble.onDataWriteCallback(gattWriteCallback);
// Add GAP service and characteristics
ble.addService(BLE_UUID_GAP);
ble.addCharacteristic(BLE_UUID_GAP_CHARACTERISTIC_DEVICE_NAME, ATT_PROPERTY_READ|ATT_PROPERTY_WRITE, (uint8_t*)BLE_DEVICE_NAME, sizeof(BLE_DEVICE_NAME));
ble.addCharacteristic(BLE_UUID_GAP_CHARACTERISTIC_APPEARANCE, ATT_PROPERTY_READ, appearance, sizeof(appearance));
ble.addCharacteristic(BLE_UUID_GAP_CHARACTERISTIC_PPCP, ATT_PROPERTY_READ, conn_param, sizeof(conn_param));
// Add GATT service and characteristics
ble.addService(BLE_UUID_GATT);
ble.addCharacteristic(BLE_UUID_GATT_CHARACTERISTIC_SERVICE_CHANGED, ATT_PROPERTY_INDICATE, change, sizeof(change));
// Add user defined service and characteristics
ble.addService(service1_uuid);
character1_handle = ble.addCharacteristicDynamic(service1_tx_uuid, ATT_PROPERTY_WRITE|ATT_PROPERTY_WRITE_WITHOUT_RESPONSE, characteristic1_data, CHARACTERISTIC1_MAX_LEN);
character2_handle = ble.addCharacteristicDynamic(service1_rx_uuid, ATT_PROPERTY_NOTIFY, characteristic2_data, CHARACTERISTIC2_MAX_LEN);
// Set BLE advertising parameters
ble.setAdvertisementParams(&adv_params);
// // Set BLE advertising data
ble.setAdvertisementData(sizeof(adv_data), adv_data);
// BLE peripheral starts advertising now.
ble.startAdvertising();
}
bool connect() {
mBuffRX.clear();
return mConn = true;
}
void disconnect() {
mConn = false;
}
bool connected() {
return mConn;
}
size_t read(void* buf, size_t len) {
uint32_t start = millis();
while (millis() - start < BLYNK_TIMEOUT_MS) {
if (available() < len) {
delay(1);
//blePeripheral->poll();
} else {
break;
}
}
noInterrupts();
size_t res = mBuffRX.get((uint8_t*)buf, len);
interrupts();
return res;
}
size_t write(const void* buf, size_t len) {
ble.sendNotify(character2_handle, (uint8_t*)buf, len);
return len;
}
size_t available() {
noInterrupts();
size_t rxSize = mBuffRX.size();
interrupts();
return rxSize;
}
private:
static BlynkTransportRedBearDuoBLE* instance;
static
int gattWriteCallback(uint16_t value_handle, uint8_t* data, uint16_t len) {
if (!instance)
return 0;
noInterrupts();
//BLYNK_DBG_DUMP(">> ", data, len);
instance->mBuffRX.put(data, len);
interrupts();
return 0;
}
static
void deviceConnectedCallback(BLEStatus_t status, uint16_t handle);
static
void deviceDisconnectedCallback(uint16_t handle);
private:
bool mConn;
BlynkFifo<uint8_t, BLYNK_MAX_READBYTES*2> mBuffRX;
};
class BlynkRedBearDuoBLE
: public BlynkProtocol<BlynkTransportRedBearDuoBLE>
{
typedef BlynkProtocol<BlynkTransportRedBearDuoBLE> Base;
public:
BlynkRedBearDuoBLE(BlynkTransportRedBearDuoBLE& transp)
: Base(transp)
{}
void begin(const char* auth)
{
Base::begin(auth);
state = DISCONNECTED;
conn.begin();
}
};
BlynkTransportRedBearDuoBLE* BlynkTransportRedBearDuoBLE::instance = NULL;
static BlynkTransportRedBearDuoBLE _blynkTransport;
BlynkRedBearDuoBLE Blynk(_blynkTransport);
void BlynkTransportRedBearDuoBLE::deviceConnectedCallback(BLEStatus_t status, uint16_t handle) {
switch (status) {
case BLE_STATUS_OK:
BLYNK_LOG1("Device connected");
Blynk.startSession();
break;
default:
break;
}
}
void BlynkTransportRedBearDuoBLE::deviceDisconnectedCallback(uint16_t handle){
BLYNK_LOG1("Device disconnected");
Blynk.disconnect();
}
#include <BlynkWidgets.h>
#endif