Kris Scholte Lubberink
/
EnvironmentalSensor
Environmental Sensor for NRF board
Revision 0:fe5389573740, committed 2019-01-16
- Comitter:
- krissl
- Date:
- Wed Jan 16 09:50:35 2019 +0000
- Commit message:
- Test;
Changed in this revision
diff -r 000000000000 -r fe5389573740 .mbed --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.mbed Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,1 @@ +ROOT=.
diff -r 000000000000 -r fe5389573740 img/connection.png Binary file img/connection.png has changed
diff -r 000000000000 -r fe5389573740 img/discovery.png Binary file img/discovery.png has changed
diff -r 000000000000 -r fe5389573740 img/notifications.png Binary file img/notifications.png has changed
diff -r 000000000000 -r fe5389573740 img/register_to_notifications.png Binary file img/register_to_notifications.png has changed
diff -r 000000000000 -r fe5389573740 img/scan_result.png Binary file img/scan_result.png has changed
diff -r 000000000000 -r fe5389573740 img/start_scan.png Binary file img/start_scan.png has changed
diff -r 000000000000 -r fe5389573740 mbed-os.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#c966348d3f9ca80843be7cdc9b748f06ea73ced0
diff -r 000000000000 -r fe5389573740 mbed_app.json --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed_app.json Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,21 @@ +{ + "target_overrides": { + "*":{ + "target.NRF_SDH_BLE_CENTRAL_LINK_COUNT": 2, + "target.NRF_SDH_BLE_PERIPHERAL_LINK_COUNT": 0, + "target.NRF_SDH_BLE_TOTAL_LINK_COUNT" : 2 + }, + "K64F": { + "target.features_add": ["BLE"], + "target.extra_labels_add": ["CORDIO", "CORDIO_BLUENRG"] + }, + "NUCLEO_F401RE": { + "target.features_add": ["BLE"], + "target.extra_labels_add": ["CORDIO", "CORDIO_BLUENRG"] + }, + "DISCO_L475VG_IOT01A": { + "target.features_add": ["BLE"], + "target.extra_labels_add": ["CORDIO", "CORDIO_BLUENRG"] + } + } +}
diff -r 000000000000 -r fe5389573740 module.json --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/module.json Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,16 @@ +{ + "name": "ble-batterylevel", + "version": "0.0.1", + "description": "An example of creating and updating a simple GATT Service using the BLE_API", + "licenses": [ + { + "url": "https://spdx.org/licenses/Apache-2.0", + "type": "Apache-2.0" + } + ], + "dependencies": { + "ble": "^2.0.0" + }, + "targetDependencies": {}, + "bin": "./source" +}
diff -r 000000000000 -r fe5389573740 readme.md --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readme.md Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,68 @@ +This example creates and updates a standard Battery Level service containing a single +GATT characteristic. + +The [battery service transmits](https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.battery_service.xml) a device's battery level in percentage, with 100% being a fully charged battery and 0% being a fully drained battery. + +Although the sample application runs on a BLE device, it doesn't show the device's real battery level (because that changes very slowly and will make for a dull example). Instead, it transmits a fake battery level that starts at 50% (half charged). Every half second, it increments the battery level, going in single increments until reaching 100% (as if the battery is charging). It then drops down to 20% to start incrementing again. + +# Running the application + +## Requirements + +The sample application can be seen on any BLE scanner on a smartphone. If you don't have a scanner on your phone, please install : + +- [nRF Master Control Panel](https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp) for Android. + +- [LightBlue](https://itunes.apple.com/gb/app/lightblue-bluetooth-low-energy/id557428110?mt=8) for iPhone. + +Hardware requirements are in the [main readme](https://github.com/ARMmbed/mbed-os-example-ble/blob/master/README.md). + +## Building instructions + +Building instructions for all samples are in the [main readme](https://github.com/ARMmbed/mbed-os-example-ble/blob/master/README.md). + +## Checking for success + +**Note:** Screens captures depicted below show what is expected from this example if the scanner used is *nRF Master Control Panel* version 4.0.5. If you encounter any difficulties consider trying another scanner or another version of nRF Master Control Panel. Alternative scanners may require reference to their manuals. + +1. Build the application and install it on your board as explained in the building instructions. +1. Open the BLE scanner on your phone. +1. Start a scan. + + ![](img/start_scan.png) + + **figure 1** How to start scan using nRF Master Control Panel 4.0.5 + +1. Find your device; it should be named `BATTERY`. + + ![](img/scan_result.png) + + **figure 2** Scan results using nRF Master Control Panel 4.0.5 + +1. Establish a connection with your device. + + ![](img/connection.png) + + **figure 3** How to establish a connection using Master Control Panel 4.0.5 + +1. Discover the services and the characteristics on the device. The *Battery service* has the UUID 0x180F and includes the *Battery level* characteristic which has the UUID 0x2A19. + + ![](img/discovery.png) + + **figure 4** Representation of the Battery service using Master Control Panel 4.0.5 + +1. Register for the notifications sent by the *Battery level* characteristic. + + ![](img/register_to_notifications.png) + + **figure 5** How to register to notifications using Master Control Panel 4.0.5 + + +1. You should see the battery level value change every half second. It begins at 50, goes up to 100 (in steps of 1), resets to 20 and so on. + + ![](img/notifications.png) + + **figure 6** Notifications view using Master Control Panel 4.0.5 + +If you can see the characteristic, and if its value is incrementing correctly, the application is working properly. +
diff -r 000000000000 -r fe5389573740 shields/TARGET_CORDIO_BLUENRG.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/shields/TARGET_CORDIO_BLUENRG.lib Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/cordio-ble-x-nucleo-idb0xa1/#51f60dfea514e35e5aa13c8e24005ecadc24a9f5
diff -r 000000000000 -r fe5389573740 source/DHT11.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/source/DHT11.lib Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/fossum_13/code/DHT11/#5da6f6de3e42
diff -r 000000000000 -r fe5389573740 source/main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/source/main.cpp Wed Jan 16 09:50:35 2019 +0000 @@ -0,0 +1,147 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2014 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <events/mbed_events.h> +#include <mbed.h> +#include "ble/BLE.h" +#include "ble/Gap.h" +#include "ble/services/EnvironmentalService.h" +#include "GattCallbackParamTypes.h" + #include "mbed.h" + #include "Dht11.h" + +Serial pc(USBTX, USBRX); +Dht11 sensor(A0); +//DigitalOut sensorPower(PTD24, 1); + +//Serial pc(USBTX, USBRX); // tx, rx + +DigitalOut led1(LED1, 1); + +const static char DEVICE_NAME[] = "MARCO&KRIS-slow"; +static const uint16_t uuid16_list[] = {GattService::UUID_ENVIRONMENTAL_SERVICE}; + +static uint8_t batteryLevel = 50; +static EnvironmentalService* batteryServicePtr; + +static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE); + +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + BLE::Instance().gap().startAdvertising(); +} +void connectionCallback(const Gap::ConnectionCallbackParams_t *params) +{ + pc.printf("\r\n *******Got connection****** \r\n"); + /* Setup advertising */ + BLE::Instance().gap().startAdvertising(); + pc.printf("****** Restarted advertising? ******\r\n"); +} +void updateSensorValue() { +// pc.printf("Temp sensing"); + sensor.read(); + pc.printf("T: %d, H: %d\r\n", sensor.getCelsius(), sensor.getHumidity()); + batteryServicePtr->updateHumidity(sensor.getHumidity()); + batteryServicePtr->updateTemperature(sensor.getCelsius()); +} + +void blinkCallback(void) +{ + led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ + + BLE &ble = BLE::Instance(); + if (ble.gap().getState().connected) { + eventQueue.call(updateSensorValue); + } +} + +/** + * This function is called when the ble initialization process has failled + */ +void onBleInitError(BLE &ble, ble_error_t error) +{ + /* Initialization error handling should go here */ +} + +void printMacAddress() +{ + /* Print out device MAC address to the console*/ + Gap::AddressType_t addr_type; + Gap::Address_t address; + BLE::Instance().gap().getAddress(&addr_type, address); + pc.printf("DEVICE MAC ADDRESS: "); + for (int i = 5; i >= 1; i--){ + pc.printf("%02x:", address[i]); + } + pc.printf("%02x\r\n", address[0]); +} + +/** + * Callback triggered when the ble initialization process has finished + */ +void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) +{ + BLE& ble = params->ble; + ble_error_t error = params->error; + + if (error != BLE_ERROR_NONE) { + /* In case of error, forward the error handling to onBleInitError */ + onBleInitError(ble, error); + return; + } + + /* Ensure that it is the default instance of BLE */ + if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { + return; + } + + ble.gap().onDisconnection(disconnectionCallback); + ble.gap().onConnection(connectionCallback); + /* Setup primary service */ + batteryServicePtr = new EnvironmentalService(ble); + + /* Setup advertising */ + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *) uuid16_list, sizeof(uuid16_list)); + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *) DEVICE_NAME, sizeof(DEVICE_NAME)); +// ble.gattServer().onDataRead(blinkCallback); + ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); + ble.gap().setAdvertisingInterval(1000); /* 1000ms */ + pc.printf("Advertising slowly"); + ble.gap().startAdvertising(); + + printMacAddress(); +} + +void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) { + BLE &ble = BLE::Instance(); + eventQueue.call(Callback<void()>(&ble, &BLE::processEvents)); +} + +int main() +{ + pc.baud (115200); + + eventQueue.call_every(500, blinkCallback); + + BLE &ble = BLE::Instance(); + ble.onEventsToProcess(scheduleBleEventsProcessing); + ble.init(bleInitComplete); + + eventQueue.dispatch_forever(); + + return 0; +}