Diff: main.cpp

Revision:

4:86bf080e3453

Parent:

3:b3f6c612b603

--- a/main.cpp	Thu Jan 07 02:46:54 2016 +0000
+++ b/main.cpp	Mon Jan 29 10:58:48 2018 +0000
@@ -1,159 +1,138 @@
-/*
-
-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 BLEController iOS/Android App.
- *    Type something from the Terminal to send
- *    to the BLEController App or vice verse.
- *    Characteristics received from App will print on Terminal.
- */
- 
 #include "mbed.h"
 #include "ble/BLE.h"
-
-
-#define BLE_UUID_TXRX_SERVICE            0x0000 /**< The UUID of the Nordic UART Service. */
-#define BLE_UUID_TX_CHARACTERISTIC       0x0002 /**< The UUID of the TX Characteristic. */
-#define BLE_UUIDS_RX_CHARACTERISTIC      0x0003 /**< The UUID of the RX Characteristic. */
-
-#define TXRX_BUF_LEN                     20
+#include "BME280.h"
 
 BLE  ble;
 
-Serial pc(USBTX, USBRX);
+// Serial pc(USBTX, USBRX);
+
+BME280 bme(P0_3, P0_4);
+
+const static uint16_t environment_ser_uuid = 0xA000;
 
+const static uint16_t temperature_chr_uuid = 0xA001;
+uint8_t             tempPayload[3] = { 0, 0, 0 };
+GattCharacteristic temp_chr   ( temperature_chr_uuid, tempPayload, sizeof(tempPayload), sizeof(tempPayload),
+                                   GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY |
+                                   GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
 
-// The Nordic UART Service
-static const uint8_t uart_base_uuid[] = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
-static const uint8_t uart_tx_uuid[]   = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
-static const uint8_t uart_rx_uuid[]   = {0x71, 0x3D, 0, 2, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
-static const uint8_t uart_base_uuid_rev[] = {0x1E, 0x94, 0x8D, 0xF1, 0x48, 0x31, 0x94, 0xBA, 0x75, 0x4C, 0x3E, 0x50, 0, 0, 0x3D, 0x71};
+const static uint16_t humidity_chr_uuid = 0xA002;
+uint8_t             humidityPayload[3] = { 0, 0, 0 };
+GattCharacteristic humidity_chr   ( humidity_chr_uuid, humidityPayload, sizeof(humidityPayload), sizeof(humidityPayload),
+                                   GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY |
+                                   GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
+                                   
+const static uint16_t pressure_chr_uuid = 0xA003;
+uint8_t             pressurePayload[3] = { 0, 0, 0 };
+GattCharacteristic pressure_chr   ( pressure_chr_uuid, pressurePayload, sizeof(pressurePayload), sizeof(pressurePayload),
+                                   GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY |
+                                   GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
 
 
-uint8_t txPayload[TXRX_BUF_LEN] = {0,};
-uint8_t rxPayload[TXRX_BUF_LEN] = {0,};
-
-static uint8_t rx_buf[TXRX_BUF_LEN];
-static uint8_t rx_len=0;
-
-
-GattCharacteristic  txCharacteristic (uart_tx_uuid, txPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
-                                      
-GattCharacteristic  rxCharacteristic (uart_rx_uuid, rxPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
-                                      
-GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic};
-
-GattService         uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *));
+GattCharacteristic *envChars[] = { &temp_chr, &humidity_chr, &pressure_chr };
+GattService        envService(environment_ser_uuid, envChars, sizeof(envChars) / sizeof(GattCharacteristic *));
 
 
 
-void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
-{
-    pc.printf("Disconnected \r\n");
-    pc.printf("Restart advertising \r\n");
-    ble.startAdvertising();
-}
-
-void WrittenHandler(const GattWriteCallbackParams *Handler)
-{   
-    uint8_t buf[TXRX_BUF_LEN];
-    uint16_t bytesRead, index;
-    
-    if (Handler->handle == txCharacteristic.getValueAttribute().getHandle()) 
-    {
-        ble.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead);
-        memset(txPayload, 0, TXRX_BUF_LEN);
-        memcpy(txPayload, buf, TXRX_BUF_LEN);       
-        pc.printf("WriteHandler \r\n");
-        pc.printf("Length: ");
-        pc.putc(bytesRead);
-        pc.printf("\r\n");
-        pc.printf("Data: ");
-        for(index=0; index<bytesRead; index++)
-        {
-            pc.putc(txPayload[index]);        
-        }
-        pc.printf("\r\n");
-    }
-}
+const static uint16_t count_ser_uuid = 0xB000;
+const static uint16_t count_chr_uuid = 0xB001;
+uint8_t             counter[1] = { 0 };
+GattCharacteristic count_chr   ( count_chr_uuid, counter, sizeof(counter), sizeof(counter),
+                                 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY |
+                                 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
+GattCharacteristic *count_chrs[] = {&count_chr, };
+GattService        countService(count_ser_uuid, count_chrs, sizeof(count_chrs) / sizeof(GattCharacteristic *));
 
-void uartCB(void)
-{   
-    while(pc.readable())    
-    {
-        rx_buf[rx_len++] = pc.getc();    
-        if(rx_len>=20 || rx_buf[rx_len-1]=='\0' || rx_buf[rx_len-1]=='\n')
-        {
-            ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), rx_buf, rx_len); 
-            pc.printf("RecHandler \r\n");
-            pc.printf("Length: ");
-            pc.putc(rx_len);
-            pc.printf("\r\n");
-            rx_len = 0;
-            break;
-        }
-    }
-}
+
 
-int main(void)
-{
-    ble.init();
-    ble.onDisconnection(disconnectionCallback);
-    ble.onDataWritten(WrittenHandler);  
-    
-    pc.baud(9600);
-    pc.printf("SimpleChat Init \r\n");
-    
-    pc.attach( uartCB , pc.RxIrq);
-   // setup advertising 
-    ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
-    ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
-    ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
-                                    (const uint8_t *)"Biscuit", sizeof("Biscuit") - 1);
-    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
-                                    (const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid));
-    // 100ms; in multiples of 0.625ms. 
-    ble.setAdvertisingInterval(160);
-
-    ble.addService(uartService);
-    
-    ble.startAdvertising(); 
-    pc.printf("Advertising Start \r\n");
-    
-    while(1)
-    {
-        ble.waitForEvent(); 
-    }
-}
+static const uint16_t uuid16_list[] = {environment_ser_uuid, count_ser_uuid};
 
 
 
 
 
 
-
+static volatile bool triggerSensorPolling = false;
 
-
+void periodicCallback(void);
+void update_values(void);
 
 
+void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
+{
+    // pc.printf("Disconnected \r\n");
+    // pc.printf("Restart advertising \r\n");
+    ble.startAdvertising();
+}
+void tare(void);
+int main(void)
+{
+    Ticker ticker;
+    ticker.attach(periodicCallback, 2.0 );
 
+    ble.init();
+    ble.onDisconnection(disconnectionCallback);
+    // pc.printf("hello\r\n");
+    // pc.printf("hi\r\n");
+    // pc.baud(9600);
+    // pc.printf("SimpleChat Init \r\n");
+
+    // setup advertising
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
+    ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
+                                     (const uint8_t *)"Biscuit", sizeof("Biscuit") - 1);
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
+
+    // 100ms; in multiples of 0.625ms.
+    ble.setAdvertisingInterval(160);
+
+    ble.addService(countService);
+    ble.addService(envService);
+
+    ble.startAdvertising();
+    // pc.printf("Advertising Start \r\n");
+
+    while(1) {
+        if (triggerSensorPolling) {
+            triggerSensorPolling = false;
+            update_values();
+        } else {
+            ble.waitForEvent();
+        }
+    }
+}
+
+void periodicCallback(void)
+{
+    triggerSensorPolling = true;
+}
 
 
+void update_values(void) {    
+    float temp = bme.getTemperature();
+    float humidity = bme.getHumidity();
+    float pressure = bme.getPressure();
+    
+    if (ble.getGapState().connected ) {
+        uint32_t temp_ = temp * 10000;
+        tempPayload[0] = (uint8_t)((temp_ & 0xFF0000) >> 16);
+        tempPayload[1] = (uint8_t)((temp_ & 0x00FF00) >> 8);
+        tempPayload[2] = (uint8_t)(temp_ & 0x0000FF);
+        ble.updateCharacteristicValue(temp_chr.getValueAttribute().getHandle(), tempPayload, sizeof(tempPayload));
+        
+        uint32_t humidity_ = humidity * 10000;
+        humidityPayload[0] = (uint8_t)((humidity_ & 0xFF0000) >> 16);
+        humidityPayload[1] = (uint8_t)((humidity_ & 0x00FF00) >> 8);
+        humidityPayload[2] = (uint8_t)(humidity_ & 0x0000FF);
+        ble.updateCharacteristicValue(humidity_chr.getValueAttribute().getHandle(), humidityPayload, sizeof(humidityPayload));
+        
+        uint32_t pressure_ = pressure * 10000;
+        pressurePayload[0] = (uint8_t)((pressure_ & 0xFF0000) >> 16);
+        pressurePayload[1] = (uint8_t)((pressure_ & 0x00FF00) >> 8);
+        pressurePayload[2] = (uint8_t)(pressure_ & 0x0000FF);
+        ble.updateCharacteristicValue(pressure_chr.getValueAttribute().getHandle(), pressurePayload, sizeof(pressurePayload));
+    }
+    
+}
 
-