BLE_Thermometer

Maxim Integrated » Code » BLE_Thermometer

Maxim Integrated / Mbed 2 deprecated BLE_Thermometer

Fork of BLE_Thermometer by Bluetooth Low Energy

main.cpp@2:a34d554282b0, 2014-09-03 (annotated)

Committer:: rgrover1
Date:: Wed Sep 03 16:25:50 2014 +0000
Revision:: 2:a34d554282b0
Parent:: 1:2deb859ed1a3
Child:: 4:83c07b0e93d6

fix the UUID for the service; needs to be HealthThermometer.; Also enabled debugging. will revert this shortly.

Who changed what in which revision?

User	Revision	Line number	New contents of line
rgrover1	0:d01bde90471b	1	/* mbed Microcontroller Library
rgrover1	0:d01bde90471b	2	* Copyright (c) 2006-2013 ARM Limited
rgrover1	0:d01bde90471b	3	*
rgrover1	0:d01bde90471b	4	* Licensed under the Apache License, Version 2.0 (the "License");
rgrover1	0:d01bde90471b	5	* you may not use this file except in compliance with the License.
rgrover1	0:d01bde90471b	6	* You may obtain a copy of the License at
rgrover1	0:d01bde90471b	7	*
rgrover1	0:d01bde90471b	8	* http://www.apache.org/licenses/LICENSE-2.0
rgrover1	0:d01bde90471b	9	*
rgrover1	0:d01bde90471b	10	* Unless required by applicable law or agreed to in writing, software
rgrover1	0:d01bde90471b	11	* distributed under the License is distributed on an "AS IS" BASIS,
rgrover1	0:d01bde90471b	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1	0:d01bde90471b	13	* See the License for the specific language governing permissions and
rgrover1	0:d01bde90471b	14	* limitations under the License.
rgrover1	0:d01bde90471b	15	*/
rgrover1	0:d01bde90471b	16
rgrover1	0:d01bde90471b	17	#include "mbed.h"
rgrover1	0:d01bde90471b	18	#include "BLEDevice.h"
rgrover1	0:d01bde90471b	19	#include "HealthThermometerService.h"
rgrover1	0:d01bde90471b	20	#include "DHT.h"
rgrover1	0:d01bde90471b	21
rgrover1	0:d01bde90471b	22	BLEDevice ble;
rgrover1	0:d01bde90471b	23	DHT sensor(D10, DHT11);
rgrover1	0:d01bde90471b	24
rgrover1	2:a34d554282b0	25	#define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console;
rgrover1	0:d01bde90471b	26	* it will have an impact on code-size and power consumption. */
rgrover1	0:d01bde90471b	27
rgrover1	0:d01bde90471b	28	#if NEED_CONSOLE_OUTPUT
rgrover1	0:d01bde90471b	29	Serial pc(USBTX, USBRX);
rgrover1	0:d01bde90471b	30	#define DEBUG(...) { pc.printf(__VA_ARGS__); }
rgrover1	0:d01bde90471b	31	#else
rgrover1	0:d01bde90471b	32	#define DEBUG(...) /* nothing */
rgrover1	0:d01bde90471b	33	#endif /* #if NEED_CONSOLE_OUTPUT */
rgrover1	0:d01bde90471b	34
rgrover1	0:d01bde90471b	35	const static char DEVICE_NAME[] = "Therm";
rgrover1	0:d01bde90471b	36	static const uint16_t uuid16_list[] = {GattService::UUID_HEALTH_THERMOMETER_SERVICE};
rgrover1	0:d01bde90471b	37	static volatile bool triggerSensorPolling = false;
rgrover1	0:d01bde90471b	38
rgrover1	1:2deb859ed1a3	39	void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
rgrover1	0:d01bde90471b	40	{
rgrover1	0:d01bde90471b	41	DEBUG("Disconnected handle %u!\n\r", handle);
rgrover1	0:d01bde90471b	42	DEBUG("Restarting the advertising process\n\r");
rgrover1	0:d01bde90471b	43	ble.startAdvertising();
rgrover1	0:d01bde90471b	44	}
rgrover1	0:d01bde90471b	45
rgrover1	0:d01bde90471b	46	void periodicCallback(void)
rgrover1	0:d01bde90471b	47	{
rgrover1	0:d01bde90471b	48	/* Note that the periodicCallback() executes in interrupt context, so it is safer to do
rgrover1	0:d01bde90471b	49	* heavy-weight sensor polling from the main thread. */
rgrover1	0:d01bde90471b	50	triggerSensorPolling = true;
rgrover1	0:d01bde90471b	51	}
rgrover1	0:d01bde90471b	52
rgrover1	0:d01bde90471b	53	int main(void)
rgrover1	0:d01bde90471b	54	{
rgrover1	0:d01bde90471b	55	Ticker ticker;
rgrover1	2:a34d554282b0	56	ticker.attach(periodicCallback, 3);
rgrover1	0:d01bde90471b	57
rgrover1	0:d01bde90471b	58	DEBUG("Initialising the nRF51822\n\r");
rgrover1	0:d01bde90471b	59	ble.init();
rgrover1	0:d01bde90471b	60	ble.onDisconnection(disconnectionCallback);
rgrover1	0:d01bde90471b	61
rgrover1	0:d01bde90471b	62	/* setup advertising */
rgrover1	0:d01bde90471b	63	ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED \| GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1	0:d01bde90471b	64	ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1	0:d01bde90471b	65	ble.accumulateAdvertisingPayload(GapAdvertisingData::THERMOMETER_EAR);
rgrover1	0:d01bde90471b	66	ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1	0:d01bde90471b	67	ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1	0:d01bde90471b	68	ble.setAdvertisingInterval(1600); /* 1000ms; in multiples of 0.625ms. */
rgrover1	0:d01bde90471b	69	ble.startAdvertising();
rgrover1	0:d01bde90471b	70
rgrover1	0:d01bde90471b	71	float initialTemperature = 39.6;
rgrover1	0:d01bde90471b	72	HealthThermometerService thermometerService(ble, initialTemperature, HealthThermometerService::LOCATION_EAR);
rgrover1	0:d01bde90471b	73
rgrover1	0:d01bde90471b	74	while (true) {
rgrover1	0:d01bde90471b	75	if (triggerSensorPolling) {
rgrover1	0:d01bde90471b	76	triggerSensorPolling = false;
rgrover1	0:d01bde90471b	77
rgrover1	2:a34d554282b0	78	wait(2);
rgrover1	2:a34d554282b0	79
rgrover1	0:d01bde90471b	80	/* Do blocking calls or whatever is necessary for sensor polling. */
rgrover1	0:d01bde90471b	81	/* In our case, we simply update the dummy HRM measurement. */
rgrover1	1:2deb859ed1a3	82	int error = sensor.readData();
rgrover1	2:a34d554282b0	83	DEBUG("sensor read returned %d\r\n", error);
rgrover1	0:d01bde90471b	84	if (!error) {
rgrover1	1:2deb859ed1a3	85	thermometerService.updateTemperature(sensor.ReadTemperature(CELCIUS));
rgrover1	0:d01bde90471b	86	}
rgrover1	0:d01bde90471b	87	} else {
rgrover1	0:d01bde90471b	88	ble.waitForEvent();
rgrover1	0:d01bde90471b	89	}
rgrover1	0:d01bde90471b	90	}
rgrover1	0:d01bde90471b	91	}