electric baka
for BLE Nano v2 AD8232
Diff: main.cpp
- Revision:
- 0:6fdf43aa5787
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Jul 11 13:18:53 2018 +0000
@@ -0,0 +1,211 @@
+/*
+
+Copyright (c) 2012-2014 RedBearLab
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+and associated documentation files (the "Software"), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+/*
+ * The application works with the BlueJelly.js
+ *
+ * http://jellyware.jp/kurage/
+ * https://github.com/electricbaka/bluejelly
+ *
+ */
+
+//======================================================================
+//Grobal
+//======================================================================
+//------------------------------------------------------------
+//Include Header Files
+//------------------------------------------------------------
+#include "mbed.h"
+#include "ble/BLE.h"
+
+
+//------------------------------------------------------------
+//Definition
+//------------------------------------------------------------
+#define TXRX_BUF_LEN 20 //max 20[byte]
+#define DEVICE_LOCAL_NAME "BlueJelly"
+#define ADVERTISING_INTERVAL 160 //160 * 0.625[ms] = 100[ms]
+#define TICKER_TIME 1000 //1000[us] = 1[ms]
+#define DIGITAL_OUT_PIN P0_29
+#define ANALOG_IN_PIN1 P0_5
+
+//HeartRate
+int timer_num = 0;
+int threshold_v = 650;
+int threshold_t = 300;
+
+
+//------------------------------------------------------------
+//Object generation
+//------------------------------------------------------------
+BLE blenano;
+DigitalOut LED_SET(DIGITAL_OUT_PIN);
+AnalogIn ANALOG1(ANALOG_IN_PIN1);
+
+
+//------------------------------------------------------------
+//Service & Characteristic Setting
+//------------------------------------------------------------
+//Service UUID
+static const uint8_t base_uuid[] = { 0x71, 0x3D, 0x00, 0x00, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E } ;
+
+//Characteristic UUID
+static const uint8_t tx_uuid[] = { 0x71, 0x3D, 0x00, 0x03, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E } ;
+static const uint8_t rx_uuid[] = { 0x71, 0x3D, 0x00, 0x02, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E } ;
+
+//Characteristic Value
+uint8_t txPayload[TXRX_BUF_LEN] = {0,};
+uint8_t rxPayload[TXRX_BUF_LEN] = {0,};
+
+//Characteristic Property Setting etc
+GattCharacteristic txCharacteristic (tx_uuid, txPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
+GattCharacteristic rxCharacteristic (rx_uuid, rxPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY| GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
+GattCharacteristic *myChars[] = {&txCharacteristic, &rxCharacteristic};
+
+//Service Setting
+GattService myService(base_uuid, myChars, sizeof(myChars) / sizeof(GattCharacteristic *));
+
+
+//======================================================================
+//onDisconnection
+//======================================================================
+void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
+{
+ blenano.startAdvertising();
+}
+
+
+//======================================================================
+//onDataWritten
+//======================================================================
+void WrittenHandler(const GattWriteCallbackParams *Handler)
+{
+ uint8_t buf[TXRX_BUF_LEN];
+ uint16_t bytesRead;
+
+ if (Handler->handle == txCharacteristic.getValueAttribute().getHandle())
+ {
+ blenano.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead);
+ memset(txPayload, 0, TXRX_BUF_LEN);
+ memcpy(txPayload, buf, TXRX_BUF_LEN);
+
+ if(buf[0] == 1)
+ LED_SET = 1;
+ else
+ LED_SET = 0;
+ }
+}
+
+
+//======================================================================
+//onTimeout
+//======================================================================
+void m_status_check_handle(void)
+{
+ timer_num ++;
+}
+
+
+//======================================================================
+//convert reverse UUID
+//======================================================================
+void reverseUUID(const uint8_t* src, uint8_t* dst)
+{
+ int i;
+
+ for(i=0;i<16;i++)
+ dst[i] = src[15 - i];
+}
+
+
+//======================================================================
+//main
+//======================================================================
+int main(void)
+{
+ uint8_t base_uuid_rev[16];
+
+ //Timer Setting [us]
+ Ticker ticker;
+ ticker.attach_us(m_status_check_handle, TICKER_TIME);
+
+ //BLE init
+ blenano.init();
+
+ //EventListener
+ blenano.onDisconnection(disconnectionCallback);
+ blenano.onDataWritten(WrittenHandler);
+
+ //------------------------------------------------------------
+ //setup advertising
+ //------------------------------------------------------------
+ //Classic BT not support
+ blenano.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
+
+ //Connectable to Central
+ blenano.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+
+ //Local Name
+ blenano.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME,
+ (const uint8_t *)DEVICE_LOCAL_NAME, sizeof(DEVICE_LOCAL_NAME) - 1);
+
+ //GAP AdvertisingData
+ reverseUUID(base_uuid, base_uuid_rev);
+ blenano.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
+ (uint8_t *)base_uuid_rev, sizeof(base_uuid));
+
+ //Advertising Interval
+ blenano.setAdvertisingInterval(ADVERTISING_INTERVAL);
+
+ //Add Service
+ blenano.addService(myService);
+
+ //Start Advertising
+ blenano.startAdvertising();
+
+ //------------------------------------------------------------
+ //Loop
+ //------------------------------------------------------------
+ int timer_ms;
+
+ while(1)
+ {
+ blenano.waitForEvent();
+
+ float s = ANALOG1;
+ uint16_t value = s * 1024;
+
+ //---------------------------------------------------------------------------------------------
+ //Detect HeartRate Peak
+ //---------------------------------------------------------------------------------------------
+ timer_ms = TICKER_TIME/1000 * timer_num;
+ if(value >= threshold_v && timer_ms > threshold_t)
+ {
+ //clear timer_num
+ timer_num = 0;
+
+ uint8_t buf[2];
+ buf[0] = (timer_ms >> 8);
+ buf[1] = timer_ms;
+
+ //Send out
+ blenano.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), buf, 2);
+ }
+ }
+}
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