Initial version for the 2 chip MMA8653/MAG3110 version of the BBC Microbit

Dependencies:   mbed AES BLE_API nRF51822 smallAES

main.cpp

Committer:
f3d
Date:
2019-10-02
Revision:
4:052ba96b27f5
Parent:
3:b9783107a8c4

File content as of revision 4:052ba96b27f5:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 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 "mbed.h"
#include "ble/BLE.h"
#include "LEDService.h"
#include "ButtonAService.h"
#include "accelService.h"
#include "magservice.h"

/* 
 * All the LEDs on the micro:bit are part of the LED Matrix,
 * In order to get simple blinking behaviour, we set column 0
 * to be permanently at ground. If you want to use the LEDs as
 * a screen, there is a display driver in the micro:bit 'DAL',
 */
DigitalOut col1(P0_4, 0);
DigitalOut alivenessLED(P0_13, 0);
DigitalOut actuatedLED(P0_14, 0);

const static char     DEVICE_NAME[] = "Microbit1";
//static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID,ACCELService::ACCEL_SERVICE_UUID,ButtonAService::BUTTONA_SERVICE_UUID};
static const uint16_t uuid16_list[] = {0xA012,0xFFF3};

LEDService *ledServicePtr;
ButtonAService * btnAServicePtr;
ACCELService *AccelServicePtr;
MAGService * MagServicePtr;
Ticker ticker;

void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
{
    BLE::Instance().gap().startAdvertising();
}

void periodicCallback(void)
{
    
    btnAServicePtr->poll();
    AccelServicePtr->poll();
    MagServicePtr->poll();
    if (btnAServicePtr->GetButtonAState())
        alivenessLED = 1;
    else
        alivenessLED = 0;
            
}

/**
 * This callback allows the LEDService to receive updates to the ledState Characteristic.
 *
 * @param[in] params
 *     Information about the characterisitc being updated.
 */
void onDataWrittenCallback(const GattWriteCallbackParams *params) {
    if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
        actuatedLED = *(params->data);
    }
}

void onDataReadCallback(const GattReadCallbackParams *params) {
  

}
/**
 * This function is called when the ble initialization process has failed
 */
void onBleInitError(BLE &ble, ble_error_t error)
{
    /* Initialization error handling should go here */
}

/**
 * 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.gattServer().onDataWritten(onDataWrittenCallback);
    // ble.gattServer().onDataRead(onDataReadCallback); // Nordic Soft device will not call this so have to poll instead

    bool initialValueForLEDCharacteristic = false;
    ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic);
    btnAServicePtr = new ButtonAService(ble);
    int16_t InitialValue=0;
    AccelServicePtr = new ACCELService(ble,InitialValue);
    MagServicePtr = new MAGService(ble,InitialValue);
    /* 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.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
    ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
    ble.gap().startAdvertising();
}

int main(void)
{
    ticker.attach(periodicCallback, 1); /* Poll devices every 100ms */

    BLE &ble = BLE::Instance();
    ble.init(bleInitComplete);

    /* SpinWait for initialization to complete. This is necessary because the
     * BLE object is used in the main loop below. */
    while (ble.hasInitialized()  == false) { /* spin loop */ }
    while (true) {
        ble.waitForEvent();
    }
}